gmock-matchers.h revision 616180e6847dd3cc6517a59ff2d24e9fd5c8052c
1e35fdd936d133bf8a48de140a3c666897588a05shiqian// Copyright 2007, Google Inc. 2e35fdd936d133bf8a48de140a3c666897588a05shiqian// All rights reserved. 3e35fdd936d133bf8a48de140a3c666897588a05shiqian// 4e35fdd936d133bf8a48de140a3c666897588a05shiqian// Redistribution and use in source and binary forms, with or without 5e35fdd936d133bf8a48de140a3c666897588a05shiqian// modification, are permitted provided that the following conditions are 6e35fdd936d133bf8a48de140a3c666897588a05shiqian// met: 7e35fdd936d133bf8a48de140a3c666897588a05shiqian// 8e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Redistributions of source code must retain the above copyright 9e35fdd936d133bf8a48de140a3c666897588a05shiqian// notice, this list of conditions and the following disclaimer. 10e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Redistributions in binary form must reproduce the above 11e35fdd936d133bf8a48de140a3c666897588a05shiqian// copyright notice, this list of conditions and the following disclaimer 12e35fdd936d133bf8a48de140a3c666897588a05shiqian// in the documentation and/or other materials provided with the 13e35fdd936d133bf8a48de140a3c666897588a05shiqian// distribution. 14e35fdd936d133bf8a48de140a3c666897588a05shiqian// * Neither the name of Google Inc. nor the names of its 15e35fdd936d133bf8a48de140a3c666897588a05shiqian// contributors may be used to endorse or promote products derived from 16e35fdd936d133bf8a48de140a3c666897588a05shiqian// this software without specific prior written permission. 17e35fdd936d133bf8a48de140a3c666897588a05shiqian// 18e35fdd936d133bf8a48de140a3c666897588a05shiqian// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19e35fdd936d133bf8a48de140a3c666897588a05shiqian// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20e35fdd936d133bf8a48de140a3c666897588a05shiqian// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21e35fdd936d133bf8a48de140a3c666897588a05shiqian// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22e35fdd936d133bf8a48de140a3c666897588a05shiqian// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23e35fdd936d133bf8a48de140a3c666897588a05shiqian// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24e35fdd936d133bf8a48de140a3c666897588a05shiqian// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25e35fdd936d133bf8a48de140a3c666897588a05shiqian// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26e35fdd936d133bf8a48de140a3c666897588a05shiqian// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27e35fdd936d133bf8a48de140a3c666897588a05shiqian// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28e35fdd936d133bf8a48de140a3c666897588a05shiqian// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29e35fdd936d133bf8a48de140a3c666897588a05shiqian// 30e35fdd936d133bf8a48de140a3c666897588a05shiqian// Author: wan@google.com (Zhanyong Wan) 31e35fdd936d133bf8a48de140a3c666897588a05shiqian 32e35fdd936d133bf8a48de140a3c666897588a05shiqian// Google Mock - a framework for writing C++ mock classes. 33e35fdd936d133bf8a48de140a3c666897588a05shiqian// 34e35fdd936d133bf8a48de140a3c666897588a05shiqian// This file implements some commonly used argument matchers. More 35e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be defined by the user implementing the 36e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T> interface if necessary. 37e35fdd936d133bf8a48de140a3c666897588a05shiqian 38e35fdd936d133bf8a48de140a3c666897588a05shiqian#ifndef GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 39e35fdd936d133bf8a48de140a3c666897588a05shiqian#define GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 40e35fdd936d133bf8a48de140a3c666897588a05shiqian 41616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#include <math.h> 426a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan#include <algorithm> 4316cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan#include <limits> 44e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <ostream> // NOLINT 45e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <sstream> 46e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <string> 47ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan#include <utility> 48e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <vector> 49e35fdd936d133bf8a48de140a3c666897588a05shiqian 5053e08c44dd34857ba57581d7c5774d6c96a8d0e1zhanyong.wan#include "gmock/internal/gmock-internal-utils.h" 5153e08c44dd34857ba57581d7c5774d6c96a8d0e1zhanyong.wan#include "gmock/internal/gmock-port.h" 5253e08c44dd34857ba57581d7c5774d6c96a8d0e1zhanyong.wan#include "gtest/gtest.h" 53e35fdd936d133bf8a48de140a3c666897588a05shiqian 54e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace testing { 55e35fdd936d133bf8a48de140a3c666897588a05shiqian 56e35fdd936d133bf8a48de140a3c666897588a05shiqian// To implement a matcher Foo for type T, define: 57e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. a class FooMatcherImpl that implements the 58e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T> interface, and 59e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. a factory function that creates a Matcher<T> object from a 60e35fdd936d133bf8a48de140a3c666897588a05shiqian// FooMatcherImpl*. 61e35fdd936d133bf8a48de140a3c666897588a05shiqian// 62e35fdd936d133bf8a48de140a3c666897588a05shiqian// The two-level delegation design makes it possible to allow a user 63e35fdd936d133bf8a48de140a3c666897588a05shiqian// to write "v" instead of "Eq(v)" where a Matcher is expected, which 64e35fdd936d133bf8a48de140a3c666897588a05shiqian// is impossible if we pass matchers by pointers. It also eases 65e35fdd936d133bf8a48de140a3c666897588a05shiqian// ownership management as Matcher objects can now be copied like 66e35fdd936d133bf8a48de140a3c666897588a05shiqian// plain values. 67e35fdd936d133bf8a48de140a3c666897588a05shiqian 68821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// MatchResultListener is an abstract class. Its << operator can be 69821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// used by a matcher to explain why a value matches or doesn't match. 70821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 71821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// TODO(wan@google.com): add method 72821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// bool InterestedInWhy(bool result) const; 73821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// to indicate whether the listener is interested in why the match 74821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// result is 'result'. 75821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass MatchResultListener { 76821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 77821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Creates a listener object with the given underlying ostream. The 78821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // listener does not own the ostream. 79821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explicit MatchResultListener(::std::ostream* os) : stream_(os) {} 80821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual ~MatchResultListener() = 0; // Makes this class abstract. 81821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 82821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Streams x to the underlying ostream; does nothing if the ostream 83821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // is NULL. 84821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan template <typename T> 85821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener& operator<<(const T& x) { 86821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (stream_ != NULL) 87821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *stream_ << x; 88821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return *this; 89821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 90821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 91821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns the underlying ostream. 92821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::ostream* stream() { return stream_; } 93821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 94a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // Returns true iff the listener is interested in an explanation of 95a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // the match result. A matcher's MatchAndExplain() method can use 96a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // this information to avoid generating the explanation when no one 97a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // intends to hear it. 98a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan bool IsInterested() const { return stream_ != NULL; } 99a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan 100821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 101821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::ostream* const stream_; 102821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 103821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(MatchResultListener); 104821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 105821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 106821133180ccdb9eb062548d964929ba3b354eb84zhanyong.waninline MatchResultListener::~MatchResultListener() { 107821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan} 108821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 109e35fdd936d133bf8a48de140a3c666897588a05shiqian// The implementation of a matcher. 110e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 111e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherInterface { 112e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 113e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherInterface() {} 114e35fdd936d133bf8a48de140a3c666897588a05shiqian 115821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff the matcher matches x; also explains the match 11683f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // result to 'listener' if necessary (see the next paragraph), in 11783f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // the form of a non-restrictive relative clause ("which ...", 11883f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // "whose ...", etc) that describes x. For example, the 11983f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // MatchAndExplain() method of the Pointee(...) matcher should 12083f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // generate an explanation like "which points to ...". 12183f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // 12283f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // Implementations of MatchAndExplain() should add an explanation of 12383f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // the match result *if and only if* they can provide additional 12483f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // information that's not already present (or not obvious) in the 12583f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // print-out of x and the matcher's description. Whether the match 12683f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // succeeds is not a factor in deciding whether an explanation is 12783f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // needed, as sometimes the caller needs to print a failure message 12883f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // when the match succeeds (e.g. when the matcher is used inside 12983f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // Not()). 13083f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // 13183f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // For example, a "has at least 10 elements" matcher should explain 13283f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // what the actual element count is, regardless of the match result, 13383f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // as it is useful information to the reader; on the other hand, an 13483f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // "is empty" matcher probably only needs to explain what the actual 13583f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // size is when the match fails, as it's redundant to say that the 13683f6b08b5f730c2bfaa288a17d5f12ca98901a00zhanyong.wan // size is 0 when the value is already known to be empty. 137821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // 138db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // You should override this method when defining a new matcher. 139821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // 140821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // It's the responsibility of the caller (Google Mock) to guarantee 141821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // that 'listener' is not NULL. This helps to simplify a matcher's 142821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // implementation when it doesn't care about the performance, as it 143821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // can talk to 'listener' without checking its validity first. 144821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // However, in order to implement dummy listeners efficiently, 145821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // listener->stream() may be NULL. 146db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const = 0; 147e35fdd936d133bf8a48de140a3c666897588a05shiqian 148a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // Describes this matcher to an ostream. The function should print 149a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // a verb phrase that describes the property a value matching this 150a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // matcher should have. The subject of the verb phrase is the value 151a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // being matched. For example, the DescribeTo() method of the Gt(7) 152a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.wan // matcher prints "is greater than 7". 153e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const = 0; 154e35fdd936d133bf8a48de140a3c666897588a05shiqian 155e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. For 156e35fdd936d133bf8a48de140a3c666897588a05shiqian // example, if the description of this matcher is "is greater than 157e35fdd936d133bf8a48de140a3c666897588a05shiqian // 7", the negated description could be "is not greater than 7". 158e35fdd936d133bf8a48de140a3c666897588a05shiqian // You are not required to override this when implementing 159e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherInterface, but it is highly advised so that your matcher 160e35fdd936d133bf8a48de140a3c666897588a05shiqian // can produce good error messages. 161e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 162e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not ("; 163e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeTo(os); 164e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ")"; 165e35fdd936d133bf8a48de140a3c666897588a05shiqian } 166e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 167e35fdd936d133bf8a48de140a3c666897588a05shiqian 168e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 169e35fdd936d133bf8a48de140a3c666897588a05shiqian 170821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that ignores the explanation. 171821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass DummyMatchResultListener : public MatchResultListener { 172821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 173821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan DummyMatchResultListener() : MatchResultListener(NULL) {} 174821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 175821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 176821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(DummyMatchResultListener); 177821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 178821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 179821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that forwards the explanation to a given 180821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// ostream. The difference between this and MatchResultListener is 181821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// that the former is concrete. 182821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass StreamMatchResultListener : public MatchResultListener { 183821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 184821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explicit StreamMatchResultListener(::std::ostream* os) 185821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan : MatchResultListener(os) {} 186821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 187821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 188821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(StreamMatchResultListener); 189821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 190821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 191821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// A match result listener that stores the explanation in a string. 192821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wanclass StringMatchResultListener : public MatchResultListener { 193821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan public: 194821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener() : MatchResultListener(&ss_) {} 195821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 196821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns the explanation heard so far. 197821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan internal::string str() const { return ss_.str(); } 198821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 199821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan private: 200821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan ::std::stringstream ss_; 201821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 202821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(StringMatchResultListener); 203821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan}; 204821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 205e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal class for implementing Matcher<T>, which will derive 206e35fdd936d133bf8a48de140a3c666897588a05shiqian// from it. We put functionalities common to all Matcher<T> 207e35fdd936d133bf8a48de140a3c666897588a05shiqian// specializations here to avoid code duplication. 208e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 209e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherBase { 210e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 211821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff the matcher matches x; also explains the match 212821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // result to 'listener'. 213821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool MatchAndExplain(T x, MatchResultListener* listener) const { 214821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return impl_->MatchAndExplain(x, listener); 215821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 216821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 217e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff this matcher matches x. 218821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool Matches(T x) const { 219821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan DummyMatchResultListener dummy; 220821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return MatchAndExplain(x, &dummy); 221821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 222e35fdd936d133bf8a48de140a3c666897588a05shiqian 223e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes this matcher to an ostream. 224e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); } 225e35fdd936d133bf8a48de140a3c666897588a05shiqian 226e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. 227e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 228e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_->DescribeNegationTo(os); 229e35fdd936d133bf8a48de140a3c666897588a05shiqian } 230e35fdd936d133bf8a48de140a3c666897588a05shiqian 231e35fdd936d133bf8a48de140a3c666897588a05shiqian // Explains why x matches, or doesn't match, the matcher. 232e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(T x, ::std::ostream* os) const { 233821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StreamMatchResultListener listener(os); 234821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchAndExplain(x, &listener); 235e35fdd936d133bf8a48de140a3c666897588a05shiqian } 23632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 237e35fdd936d133bf8a48de140a3c666897588a05shiqian protected: 238e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherBase() {} 239e35fdd936d133bf8a48de140a3c666897588a05shiqian 240e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 241e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherBase(const MatcherInterface<T>* impl) 242e35fdd936d133bf8a48de140a3c666897588a05shiqian : impl_(impl) {} 243e35fdd936d133bf8a48de140a3c666897588a05shiqian 244e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherBase() {} 24532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 246e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 247e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar 248e35fdd936d133bf8a48de140a3c666897588a05shiqian // interfaces. The former dynamically allocates a chunk of memory 249e35fdd936d133bf8a48de140a3c666897588a05shiqian // to hold the reference count, while the latter tracks all 250e35fdd936d133bf8a48de140a3c666897588a05shiqian // references using a circular linked list without allocating 251e35fdd936d133bf8a48de140a3c666897588a05shiqian // memory. It has been observed that linked_ptr performs better in 252e35fdd936d133bf8a48de140a3c666897588a05shiqian // typical scenarios. However, shared_ptr can out-perform 253e35fdd936d133bf8a48de140a3c666897588a05shiqian // linked_ptr when there are many more uses of the copy constructor 254e35fdd936d133bf8a48de140a3c666897588a05shiqian // than the default constructor. 255e35fdd936d133bf8a48de140a3c666897588a05shiqian // 256e35fdd936d133bf8a48de140a3c666897588a05shiqian // If performance becomes a problem, we should see if using 257e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr helps. 258e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::linked_ptr<const MatcherInterface<T> > impl_; 259e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 260e35fdd936d133bf8a48de140a3c666897588a05shiqian 261e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 262e35fdd936d133bf8a48de140a3c666897588a05shiqian 263e35fdd936d133bf8a48de140a3c666897588a05shiqian// A Matcher<T> is a copyable and IMMUTABLE (except by assignment) 264e35fdd936d133bf8a48de140a3c666897588a05shiqian// object that can check whether a value of type T matches. The 265e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation of Matcher<T> is just a linked_ptr to const 266e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T>, so copying is fairly cheap. Don't inherit 267e35fdd936d133bf8a48de140a3c666897588a05shiqian// from Matcher! 268e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 269e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher : public internal::MatcherBase<T> { 270e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 27188032d8e0f6d4bc63b97aeeab84fdc44aeab1c89vladlosev // Constructs a null matcher. Needed for storing Matcher objects in STL 27288032d8e0f6d4bc63b97aeeab84fdc44aeab1c89vladlosev // containers. A default-constructed matcher is not yet initialized. You 27388032d8e0f6d4bc63b97aeeab84fdc44aeab1c89vladlosev // cannot use it until a valid value has been assigned to it. 274e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 275e35fdd936d133bf8a48de140a3c666897588a05shiqian 276e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 277e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<T>* impl) 278e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<T>(impl) {} 279e35fdd936d133bf8a48de140a3c666897588a05shiqian 28018490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Implicit constructor here allows people to write 281e35fdd936d133bf8a48de140a3c666897588a05shiqian // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes 282e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(T value); // NOLINT 283e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 284e35fdd936d133bf8a48de140a3c666897588a05shiqian 285e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following two specializations allow the user to write str 286e35fdd936d133bf8a48de140a3c666897588a05shiqian// instead of Eq(str) and "foo" instead of Eq("foo") when a string 287e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher is expected. 288e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 289587c1b37c2f0b6d430fb13ce09326db0135b557cvladlosevclass GTEST_API_ Matcher<const internal::string&> 290e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<const internal::string&> { 291e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 292e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 293e35fdd936d133bf8a48de140a3c666897588a05shiqian 294e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<const internal::string&>* impl) 295e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<const internal::string&>(impl) {} 296e35fdd936d133bf8a48de140a3c666897588a05shiqian 297e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 298e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 299e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 300e35fdd936d133bf8a48de140a3c666897588a05shiqian 301e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 302e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 303e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 304e35fdd936d133bf8a48de140a3c666897588a05shiqian 305e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 306587c1b37c2f0b6d430fb13ce09326db0135b557cvladlosevclass GTEST_API_ Matcher<internal::string> 307e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<internal::string> { 308e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 309e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 310e35fdd936d133bf8a48de140a3c666897588a05shiqian 311e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<internal::string>* impl) 312e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<internal::string>(impl) {} 313e35fdd936d133bf8a48de140a3c666897588a05shiqian 314e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 315e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 316e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 317e35fdd936d133bf8a48de140a3c666897588a05shiqian 318e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 319e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 320e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 321e35fdd936d133bf8a48de140a3c666897588a05shiqian 3221f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan#if GTEST_HAS_STRING_PIECE_ 3231f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan// The following two specializations allow the user to write str 3241f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan// instead of Eq(str) and "foo" instead of Eq("foo") when a StringPiece 3251f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan// matcher is expected. 3261f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wantemplate <> 3271f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wanclass GTEST_API_ Matcher<const StringPiece&> 3281f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan : public internal::MatcherBase<const StringPiece&> { 3291f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan public: 3301f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher() {} 3311f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3321f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan explicit Matcher(const MatcherInterface<const StringPiece&>* impl) 3331f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan : internal::MatcherBase<const StringPiece&>(impl) {} 3341f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3351f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to write str instead of Eq(str) sometimes, where 3361f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // str is a string object. 3371f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(const internal::string& s); // NOLINT 3381f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3391f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to write "foo" instead of Eq("foo") sometimes. 3401f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(const char* s); // NOLINT 3411f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3421f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to pass StringPieces directly. 3431f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(StringPiece s); // NOLINT 3441f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan}; 3451f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3461f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wantemplate <> 3471f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wanclass GTEST_API_ Matcher<StringPiece> 3481f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan : public internal::MatcherBase<StringPiece> { 3491f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan public: 3501f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher() {} 3511f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3521f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan explicit Matcher(const MatcherInterface<StringPiece>* impl) 3531f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan : internal::MatcherBase<StringPiece>(impl) {} 3541f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3551f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to write str instead of Eq(str) sometimes, where 3561f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // str is a string object. 3571f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(const internal::string& s); // NOLINT 3581f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3591f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to write "foo" instead of Eq("foo") sometimes. 3601f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(const char* s); // NOLINT 3611f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 3621f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan // Allows the user to pass StringPieces directly. 3631f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan Matcher(StringPiece s); // NOLINT 3641f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan}; 3651f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan#endif // GTEST_HAS_STRING_PIECE_ 3661f122a06e6aad4d234123d2d8c1e352029ce0742zhanyong.wan 367e35fdd936d133bf8a48de140a3c666897588a05shiqian// The PolymorphicMatcher class template makes it easy to implement a 368e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matcher (i.e. a matcher that can match values of more 369e35fdd936d133bf8a48de140a3c666897588a05shiqian// than one type, e.g. Eq(n) and NotNull()). 370e35fdd936d133bf8a48de140a3c666897588a05shiqian// 371db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// To define a polymorphic matcher, a user should provide an Impl 372db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// class that has a DescribeTo() method and a DescribeNegationTo() 373db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// method, and define a member function (or member function template) 374821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 375db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// bool MatchAndExplain(const Value& value, 376db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan// MatchResultListener* listener) const; 377821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// 378821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan// See the definition of NotNull() for a complete example. 379e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 380e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PolymorphicMatcher { 381e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 38232de5f53763125925e078498250f7e73a88de9edzhanyong.wan explicit PolymorphicMatcher(const Impl& an_impl) : impl_(an_impl) {} 383e35fdd936d133bf8a48de140a3c666897588a05shiqian 3842b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // Returns a mutable reference to the underlying matcher 3852b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // implementation object. 3862b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan Impl& mutable_impl() { return impl_; } 3872b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 3882b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // Returns an immutable reference to the underlying matcher 3892b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan // implementation object. 3902b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan const Impl& impl() const { return impl_; } 3912b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 392e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 393e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 394e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new MonomorphicImpl<T>(impl_)); 395e35fdd936d133bf8a48de140a3c666897588a05shiqian } 39632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 397e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 398e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 399e35fdd936d133bf8a48de140a3c666897588a05shiqian class MonomorphicImpl : public MatcherInterface<T> { 400e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 401e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {} 402e35fdd936d133bf8a48de140a3c666897588a05shiqian 403e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 404e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeTo(os); 405e35fdd936d133bf8a48de140a3c666897588a05shiqian } 406e35fdd936d133bf8a48de140a3c666897588a05shiqian 407e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 408e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeNegationTo(os); 409e35fdd936d133bf8a48de140a3c666897588a05shiqian } 410e35fdd936d133bf8a48de140a3c666897588a05shiqian 411821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 412db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return impl_.MatchAndExplain(x, listener); 413e35fdd936d133bf8a48de140a3c666897588a05shiqian } 4142b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan 415e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 416e35fdd936d133bf8a48de140a3c666897588a05shiqian const Impl impl_; 41732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 41832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MonomorphicImpl); 419e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 420e35fdd936d133bf8a48de140a3c666897588a05shiqian 4212b43a9ecd16edc1ec55429967e0f2de1aaf8e8bbzhanyong.wan Impl impl_; 42232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 42332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PolymorphicMatcher); 424e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 425e35fdd936d133bf8a48de140a3c666897588a05shiqian 426e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher from its implementation. This is easier to use 427e35fdd936d133bf8a48de140a3c666897588a05shiqian// than the Matcher<T> constructor as it doesn't require you to 428e35fdd936d133bf8a48de140a3c666897588a05shiqian// explicitly write the template argument, e.g. 429e35fdd936d133bf8a48de140a3c666897588a05shiqian// 430e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakeMatcher(foo); 431e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 432e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<const string&>(foo); 433e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 434e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) { 435e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(impl); 4362eab17b76d350dac1b1c85879ec8e1135da615cezhanyong.wan} 437e35fdd936d133bf8a48de140a3c666897588a05shiqian 438e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher from its implementation. This is 439e35fdd936d133bf8a48de140a3c666897588a05shiqian// easier to use than the PolymorphicMatcher<Impl> constructor as it 440e35fdd936d133bf8a48de140a3c666897588a05shiqian// doesn't require you to explicitly write the template argument, e.g. 441e35fdd936d133bf8a48de140a3c666897588a05shiqian// 442e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakePolymorphicMatcher(foo); 443e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 444e35fdd936d133bf8a48de140a3c666897588a05shiqian// PolymorphicMatcher<TypeOfFoo>(foo); 445e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 446e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) { 447e35fdd936d133bf8a48de140a3c666897588a05shiqian return PolymorphicMatcher<Impl>(impl); 448e35fdd936d133bf8a48de140a3c666897588a05shiqian} 449e35fdd936d133bf8a48de140a3c666897588a05shiqian 45079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION 45179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// and MUST NOT BE USED IN USER CODE!!! 45279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmnamespace internal { 45379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 45479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// The MatcherCastImpl class template is a helper for implementing 45579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// MatcherCast(). We need this helper in order to partially 45679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// specialize the implementation of MatcherCast() (C++ allows 45779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// class/struct templates to be partially specialized, but not 45879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// function templates.). 45979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 46079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// This general version is used when MatcherCast()'s argument is a 46179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// polymorphic matcher (i.e. something that can be converted to a 46279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// Matcher but is not one yet; for example, Eq(value)) or a value (for 46379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// example, "hello"). 46479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmtemplate <typename T, typename M> 46579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmclass MatcherCastImpl { 46679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm public: 46779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static Matcher<T> Cast(M polymorphic_matcher_or_value) { 46879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // M can be a polymorhic matcher, in which case we want to use 46979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // its conversion operator to create Matcher<T>. Or it can be a value 47079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // that should be passed to the Matcher<T>'s constructor. 47179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // 47279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // We can't call Matcher<T>(polymorphic_matcher_or_value) when M is a 47379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // polymorphic matcher because it'll be ambiguous if T has an implicit 47479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // constructor from M (this usually happens when T has an implicit 47579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // constructor from any type). 47679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // 47779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // It won't work to unconditionally implict_cast 47879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // polymorphic_matcher_or_value to Matcher<T> because it won't trigger 47979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // a user-defined conversion from M to T if one exists (assuming M is 48079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // a value). 48179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return CastImpl( 48279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm polymorphic_matcher_or_value, 48379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm BooleanConstant< 48479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm internal::ImplicitlyConvertible<M, Matcher<T> >::value>()); 48579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 48679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 48779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm private: 48879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static Matcher<T> CastImpl(M value, BooleanConstant<false>) { 48979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // M can't be implicitly converted to Matcher<T>, so M isn't a polymorphic 49079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // matcher. It must be a value then. Use direct initialization to create 49179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // a matcher. 49279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return Matcher<T>(ImplicitCast_<T>(value)); 49379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 49479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 49579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static Matcher<T> CastImpl(M polymorphic_matcher_or_value, 49679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm BooleanConstant<true>) { 49779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // M is implicitly convertible to Matcher<T>, which means that either 49879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // M is a polymorhpic matcher or Matcher<T> has an implicit constructor 49979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // from M. In both cases using the implicit conversion will produce a 50079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // matcher. 50179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // 50279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // Even if T has an implicit constructor from M, it won't be called because 50379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // creating Matcher<T> would require a chain of two user-defined conversions 50479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // (first to create T from M and then to create Matcher<T> from T). 50579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return polymorphic_matcher_or_value; 50679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 50779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm}; 50879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 50979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// This more specialized version is used when MatcherCast()'s argument 51079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// is already a Matcher. This only compiles when type T can be 51179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// statically converted to type U. 51279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmtemplate <typename T, typename U> 51379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmclass MatcherCastImpl<T, Matcher<U> > { 51479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm public: 51579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static Matcher<T> Cast(const Matcher<U>& source_matcher) { 51679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return Matcher<T>(new Impl(source_matcher)); 51779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 51879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 51979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm private: 52079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm class Impl : public MatcherInterface<T> { 52179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm public: 52279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm explicit Impl(const Matcher<U>& source_matcher) 52379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm : source_matcher_(source_matcher) {} 52479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 52579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // We delegate the matching logic to the source matcher. 52679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 52779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return source_matcher_.MatchAndExplain(static_cast<U>(x), listener); 52879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 52979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 53079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm virtual void DescribeTo(::std::ostream* os) const { 53179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm source_matcher_.DescribeTo(os); 53279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 53379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 53479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm virtual void DescribeNegationTo(::std::ostream* os) const { 53579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm source_matcher_.DescribeNegationTo(os); 53679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm } 53779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 53879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm private: 53979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm const Matcher<U> source_matcher_; 54079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 54179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm GTEST_DISALLOW_ASSIGN_(Impl); 54279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm }; 54379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm}; 54479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 54579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// This even more specialized version is used for efficiently casting 54679a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm// a matcher to its own type. 54779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmtemplate <typename T> 54879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgmclass MatcherCastImpl<T, Matcher<T> > { 54979a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm public: 55079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; } 55179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm}; 55279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 55379a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm} // namespace internal 55479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 555e35fdd936d133bf8a48de140a3c666897588a05shiqian// In order to be safe and clear, casting between different matcher 556e35fdd936d133bf8a48de140a3c666897588a05shiqian// types is done explicitly via MatcherCast<T>(m), which takes a 557e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher m and returns a Matcher<T>. It compiles only when T can be 558e35fdd936d133bf8a48de140a3c666897588a05shiqian// statically converted to the argument type of m. 559e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 56079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgminline Matcher<T> MatcherCast(M matcher) { 56179a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return internal::MatcherCastImpl<T, M>::Cast(matcher); 56279a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm} 563e35fdd936d133bf8a48de140a3c666897588a05shiqian 56418490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan// Implements SafeMatcherCast(). 56518490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan// 56695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// We use an intermediate class to do the actual safe casting as Nokia's 56795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// Symbian compiler cannot decide between 56895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// template <T, M> ... (M) and 56995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// template <T, U> ... (const Matcher<U>&) 57095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan// for function templates but can for member function templates. 57195b12332c345cee508a8e2b68e007280392506e0zhanyong.wantemplate <typename T> 57295b12332c345cee508a8e2b68e007280392506e0zhanyong.wanclass SafeMatcherCastImpl { 57395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan public: 57479a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // This overload handles polymorphic matchers and values only since 57579a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm // monomorphic matchers are handled by the next one. 57695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan template <typename M> 57779a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm static inline Matcher<T> Cast(M polymorphic_matcher_or_value) { 57879a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm return internal::MatcherCastImpl<T, M>::Cast(polymorphic_matcher_or_value); 57995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan } 58018490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan 58195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // This overload handles monomorphic matchers. 58295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // 58395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // In general, if type T can be implicitly converted to type U, we can 58495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // safely convert a Matcher<U> to a Matcher<T> (i.e. Matcher is 58595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // contravariant): just keep a copy of the original Matcher<U>, convert the 58695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // argument from type T to U, and then pass it to the underlying Matcher<U>. 58795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // The only exception is when U is a reference and T is not, as the 58895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // underlying Matcher<U> may be interested in the argument's address, which 58995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // is not preserved in the conversion from T to U. 59095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan template <typename U> 59195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan static inline Matcher<T> Cast(const Matcher<U>& matcher) { 59295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // Enforce that T can be implicitly converted to U. 59302f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_((internal::ImplicitlyConvertible<T, U>::value), 59495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan T_must_be_implicitly_convertible_to_U); 59595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // Enforce that we are not converting a non-reference type T to a reference 59695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // type U. 59702f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_( 59895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan internal::is_reference<T>::value || !internal::is_reference<U>::value, 59995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan cannot_convert_non_referentce_arg_to_reference); 60095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // In case both T and U are arithmetic types, enforce that the 60195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan // conversion is not lossy. 602ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT; 603ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU; 60495b12332c345cee508a8e2b68e007280392506e0zhanyong.wan const bool kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther; 60595b12332c345cee508a8e2b68e007280392506e0zhanyong.wan const bool kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther; 60602f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_( 60795b12332c345cee508a8e2b68e007280392506e0zhanyong.wan kTIsOther || kUIsOther || 60895b12332c345cee508a8e2b68e007280392506e0zhanyong.wan (internal::LosslessArithmeticConvertible<RawT, RawU>::value), 60995b12332c345cee508a8e2b68e007280392506e0zhanyong.wan conversion_of_arithmetic_types_must_be_lossless); 61095b12332c345cee508a8e2b68e007280392506e0zhanyong.wan return MatcherCast<T>(matcher); 61195b12332c345cee508a8e2b68e007280392506e0zhanyong.wan } 61295b12332c345cee508a8e2b68e007280392506e0zhanyong.wan}; 61395b12332c345cee508a8e2b68e007280392506e0zhanyong.wan 61495b12332c345cee508a8e2b68e007280392506e0zhanyong.wantemplate <typename T, typename M> 61595b12332c345cee508a8e2b68e007280392506e0zhanyong.waninline Matcher<T> SafeMatcherCast(const M& polymorphic_matcher) { 61695b12332c345cee508a8e2b68e007280392506e0zhanyong.wan return SafeMatcherCastImpl<T>::Cast(polymorphic_matcher); 61718490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan} 61818490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan 619e35fdd936d133bf8a48de140a3c666897588a05shiqian// A<T>() returns a matcher that matches any value of type T. 620e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 621e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T> A(); 622e35fdd936d133bf8a48de140a3c666897588a05shiqian 623e35fdd936d133bf8a48de140a3c666897588a05shiqian// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION 624e35fdd936d133bf8a48de140a3c666897588a05shiqian// and MUST NOT BE USED IN USER CODE!!! 625e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 626e35fdd936d133bf8a48de140a3c666897588a05shiqian 627b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan// If the explanation is not empty, prints it to the ostream. 628b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.waninline void PrintIfNotEmpty(const internal::string& explanation, 629b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan std::ostream* os) { 630b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (explanation != "" && os != NULL) { 631b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ", " << explanation; 632676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 633676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan} 634676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 635736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan// Returns true if the given type name is easy to read by a human. 636736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan// This is used to decide whether printing the type of a value might 637736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan// be helpful. 638736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.waninline bool IsReadableTypeName(const string& type_name) { 639736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan // We consider a type name readable if it's short or doesn't contain 640736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan // a template or function type. 641736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan return (type_name.length() <= 20 || 642736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan type_name.find_first_of("<(") == string::npos); 643736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan} 644736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan 645676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// Matches the value against the given matcher, prints the value and explains 646676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// the match result to the listener. Returns the match result. 647676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// 'listener' must not be NULL. 648676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// Value cannot be passed by const reference, because some matchers take a 649676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan// non-const argument. 650676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wantemplate <typename Value, typename T> 651676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wanbool MatchPrintAndExplain(Value& value, const Matcher<T>& matcher, 652676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan MatchResultListener* listener) { 653676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!listener->IsInterested()) { 654676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // If the listener is not interested, we do not need to construct the 655676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // inner explanation. 656676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return matcher.Matches(value); 657676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 658676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 659676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener inner_listener; 660676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan const bool match = matcher.MatchAndExplain(value, &inner_listener); 661676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 662676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan UniversalPrint(value, listener->stream()); 663736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan#if GTEST_HAS_RTTI 664736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan const string& type_name = GetTypeName<Value>(); 665736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan if (IsReadableTypeName(type_name)) 666736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan *listener->stream() << " (of type " << type_name << ")"; 667736baa8ac028f01a5c79ebecb6fc7043b47d3c4ezhanyong.wan#endif 668b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 669676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 670676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return match; 671676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan} 672676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 673e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal helper class for doing compile-time loop on a tuple's 674e35fdd936d133bf8a48de140a3c666897588a05shiqian// fields. 675e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <size_t N> 676e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix { 677e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 678e35fdd936d133bf8a48de140a3c666897588a05shiqian // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true 679e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff the first N fields of matcher_tuple matches the first N 680e35fdd936d133bf8a48de140a3c666897588a05shiqian // fields of value_tuple, respectively. 681e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 682e35fdd936d133bf8a48de140a3c666897588a05shiqian static bool Matches(const MatcherTuple& matcher_tuple, 683e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 684e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 685e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple) 686e35fdd936d133bf8a48de140a3c666897588a05shiqian && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple)); 687e35fdd936d133bf8a48de140a3c666897588a05shiqian } 688e35fdd936d133bf8a48de140a3c666897588a05shiqian 689b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // TuplePrefix<N>::ExplainMatchFailuresTo(matchers, values, os) 690e35fdd936d133bf8a48de140a3c666897588a05shiqian // describes failures in matching the first N fields of matchers 691e35fdd936d133bf8a48de140a3c666897588a05shiqian // against the first N fields of values. If there is no failure, 692e35fdd936d133bf8a48de140a3c666897588a05shiqian // nothing will be streamed to os. 693e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 694b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan static void ExplainMatchFailuresTo(const MatcherTuple& matchers, 695b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& values, 696b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* os) { 697e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_element; 698e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 699e35fdd936d133bf8a48de140a3c666897588a05shiqian 700e35fdd936d133bf8a48de140a3c666897588a05shiqian // First, describes failures in the first N - 1 fields. 701b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan TuplePrefix<N - 1>::ExplainMatchFailuresTo(matchers, values, os); 702e35fdd936d133bf8a48de140a3c666897588a05shiqian 703e35fdd936d133bf8a48de140a3c666897588a05shiqian // Then describes the failure (if any) in the (N - 1)-th (0-based) 704e35fdd936d133bf8a48de140a3c666897588a05shiqian // field. 705e35fdd936d133bf8a48de140a3c666897588a05shiqian typename tuple_element<N - 1, MatcherTuple>::type matcher = 706e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers); 707e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename tuple_element<N - 1, ValueTuple>::type Value; 708e35fdd936d133bf8a48de140a3c666897588a05shiqian Value value = get<N - 1>(values); 709821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener; 710821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher.MatchAndExplain(value, &listener)) { 711e35fdd936d133bf8a48de140a3c666897588a05shiqian // TODO(wan): include in the message the name of the parameter 712e35fdd936d133bf8a48de140a3c666897588a05shiqian // as used in MOCK_METHOD*() when possible. 713e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << " Expected arg #" << N - 1 << ": "; 714e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers).DescribeTo(os); 715e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n Actual: "; 716e35fdd936d133bf8a48de140a3c666897588a05shiqian // We remove the reference in type Value to prevent the 717e35fdd936d133bf8a48de140a3c666897588a05shiqian // universal printer from printing the address of value, which 718e35fdd936d133bf8a48de140a3c666897588a05shiqian // isn't interesting to the user most of the time. The 719db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // matcher's MatchAndExplain() method handles the case when 720e35fdd936d133bf8a48de140a3c666897588a05shiqian // the address is interesting. 721b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan internal::UniversalPrint(value, os); 722b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(listener.str(), os); 723e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n"; 724e35fdd936d133bf8a48de140a3c666897588a05shiqian } 725e35fdd936d133bf8a48de140a3c666897588a05shiqian } 726e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 727e35fdd936d133bf8a48de140a3c666897588a05shiqian 728e35fdd936d133bf8a48de140a3c666897588a05shiqian// The base case. 729e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 730e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix<0> { 731e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 732e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 7333fbd2dd020819fcfd7cef2aa6a17fad73c41a0eezhanyong.wan static bool Matches(const MatcherTuple& /* matcher_tuple */, 7343fbd2dd020819fcfd7cef2aa6a17fad73c41a0eezhanyong.wan const ValueTuple& /* value_tuple */) { 735e35fdd936d133bf8a48de140a3c666897588a05shiqian return true; 736e35fdd936d133bf8a48de140a3c666897588a05shiqian } 737e35fdd936d133bf8a48de140a3c666897588a05shiqian 738e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 739b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan static void ExplainMatchFailuresTo(const MatcherTuple& /* matchers */, 740b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& /* values */, 741b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* /* os */) {} 742e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 743e35fdd936d133bf8a48de140a3c666897588a05shiqian 744e35fdd936d133bf8a48de140a3c666897588a05shiqian// TupleMatches(matcher_tuple, value_tuple) returns true iff all 745e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers in matcher_tuple match the corresponding fields in 746e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple. It is a compiler error if matcher_tuple and 747e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple have different number of fields or incompatible field 748e35fdd936d133bf8a48de140a3c666897588a05shiqian// types. 749e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 750e35fdd936d133bf8a48de140a3c666897588a05shiqianbool TupleMatches(const MatcherTuple& matcher_tuple, 751e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 752e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 753e35fdd936d133bf8a48de140a3c666897588a05shiqian // Makes sure that matcher_tuple and value_tuple have the same 754e35fdd936d133bf8a48de140a3c666897588a05shiqian // number of fields. 75502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_COMPILE_ASSERT_(tuple_size<MatcherTuple>::value == 756e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan tuple_size<ValueTuple>::value, 757e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan matcher_and_value_have_different_numbers_of_fields); 758e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<tuple_size<ValueTuple>::value>:: 759e35fdd936d133bf8a48de140a3c666897588a05shiqian Matches(matcher_tuple, value_tuple); 760e35fdd936d133bf8a48de140a3c666897588a05shiqian} 761e35fdd936d133bf8a48de140a3c666897588a05shiqian 762e35fdd936d133bf8a48de140a3c666897588a05shiqian// Describes failures in matching matchers against values. If there 763e35fdd936d133bf8a48de140a3c666897588a05shiqian// is no failure, nothing will be streamed to os. 764e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 765b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanvoid ExplainMatchFailureTupleTo(const MatcherTuple& matchers, 766b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const ValueTuple& values, 767b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::ostream* os) { 768e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 769b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan TuplePrefix<tuple_size<MatcherTuple>::value>::ExplainMatchFailuresTo( 770e35fdd936d133bf8a48de140a3c666897588a05shiqian matchers, values, os); 771e35fdd936d133bf8a48de140a3c666897588a05shiqian} 772e35fdd936d133bf8a48de140a3c666897588a05shiqian 773e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements A<T>(). 774e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 775e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnyMatcherImpl : public MatcherInterface<T> { 776e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 777821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( 778821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan T /* x */, MatchResultListener* /* listener */) const { return true; } 779e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; } 780e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 781e35fdd936d133bf8a48de140a3c666897588a05shiqian // This is mostly for completeness' safe, as it's not very useful 782e35fdd936d133bf8a48de140a3c666897588a05shiqian // to write Not(A<bool>()). However we cannot completely rule out 783e35fdd936d133bf8a48de140a3c666897588a05shiqian // such a possibility, and it doesn't hurt to be prepared. 784e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 785e35fdd936d133bf8a48de140a3c666897588a05shiqian } 786e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 787e35fdd936d133bf8a48de140a3c666897588a05shiqian 788e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements _, a matcher that matches any value of any 789e35fdd936d133bf8a48de140a3c666897588a05shiqian// type. This is a polymorphic matcher, so we need a template type 790e35fdd936d133bf8a48de140a3c666897588a05shiqian// conversion operator to make it appearing as a Matcher<T> for any 791e35fdd936d133bf8a48de140a3c666897588a05shiqian// type T. 792e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnythingMatcher { 793e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 794e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 795e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { return A<T>(); } 796e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 797e35fdd936d133bf8a48de140a3c666897588a05shiqian 798e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares a given value with a 799e35fdd936d133bf8a48de140a3c666897588a05shiqian// pre-supplied value using one of the ==, <=, <, etc, operators. The 800e35fdd936d133bf8a48de140a3c666897588a05shiqian// two values being compared don't have to have the same type. 801e35fdd936d133bf8a48de140a3c666897588a05shiqian// 802e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq(5) can be 803e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match an int, a short, a double, etc). Therefore we use 804e35fdd936d133bf8a48de140a3c666897588a05shiqian// a template type conversion operator in the implementation. 805e35fdd936d133bf8a48de140a3c666897588a05shiqian// 806e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 807e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 808e35fdd936d133bf8a48de140a3c666897588a05shiqian// 809e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following template definition assumes that the Rhs parameter is 810e35fdd936d133bf8a48de140a3c666897588a05shiqian// a "bare" type (i.e. neither 'const T' nor 'T&'). 811b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan#define GMOCK_IMPLEMENT_COMPARISON_MATCHER_( \ 812b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan name, op, relation, negated_relation) \ 813e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Rhs> class name##Matcher { \ 814e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 815e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit name##Matcher(const Rhs& rhs) : rhs_(rhs) {} \ 816e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 817e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Lhs>() const { \ 818e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Lhs>(rhs_)); \ 819e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 820e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 821e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 822e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Lhs> { \ 823e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 824e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Rhs& rhs) : rhs_(rhs) {} \ 825821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(\ 826821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan Lhs lhs, MatchResultListener* /* listener */) const { \ 827821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return lhs op rhs_; \ 828821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } \ 829e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 830b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << relation " "; \ 831e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(rhs_, os); \ 832e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 833e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 834b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << negated_relation " "; \ 835e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(rhs_, os); \ 836e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 837e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 838e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 83932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); \ 840e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 841e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 84232de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(name##Matcher); \ 843e35fdd936d133bf8a48de140a3c666897588a05shiqian } 844e35fdd936d133bf8a48de140a3c666897588a05shiqian 845e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(v), Ge(v), Gt(v), Le(v), Lt(v), and Ne(v) 846e35fdd936d133bf8a48de140a3c666897588a05shiqian// respectively. 847b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Eq, ==, "is equal to", "isn't equal to"); 848b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ge, >=, "is >=", "isn't >="); 849b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Gt, >, "is >", "isn't >"); 850b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Le, <=, "is <=", "isn't <="); 851b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Lt, <, "is <", "isn't <"); 852b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wanGMOCK_IMPLEMENT_COMPARISON_MATCHER_(Ne, !=, "isn't equal to", "is equal to"); 853e35fdd936d133bf8a48de140a3c666897588a05shiqian 854e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan#undef GMOCK_IMPLEMENT_COMPARISON_MATCHER_ 855e35fdd936d133bf8a48de140a3c666897588a05shiqian 85679b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev// Implements the polymorphic IsNull() matcher, which matches any raw or smart 8572d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan// pointer that is NULL. 8582d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wanclass IsNullMatcher { 8592d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan public: 86079b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev template <typename Pointer> 861db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const Pointer& p, 862db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 863db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return GetRawPointer(p) == NULL; 864db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 8652d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 8662d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan void DescribeTo(::std::ostream* os) const { *os << "is NULL"; } 8672d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan void DescribeNegationTo(::std::ostream* os) const { 868b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't NULL"; 8692d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan } 8702d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan}; 8712d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 87279b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev// Implements the polymorphic NotNull() matcher, which matches any raw or smart 873e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointer that is not NULL. 874e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotNullMatcher { 875e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 87679b83505bcf73bf2903ebf2e2f82cb1e1f181816vladlosev template <typename Pointer> 877db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const Pointer& p, 878db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 879db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return GetRawPointer(p) != NULL; 880db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 881e35fdd936d133bf8a48de140a3c666897588a05shiqian 882b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan void DescribeTo(::std::ostream* os) const { *os << "isn't NULL"; } 883e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 884e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NULL"; 885e35fdd936d133bf8a48de140a3c666897588a05shiqian } 886e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 887e35fdd936d133bf8a48de140a3c666897588a05shiqian 888e35fdd936d133bf8a48de140a3c666897588a05shiqian// Ref(variable) matches any argument that is a reference to 889e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'variable'. This matcher is polymorphic as it can match any 890e35fdd936d133bf8a48de140a3c666897588a05shiqian// super type of the type of 'variable'. 891e35fdd936d133bf8a48de140a3c666897588a05shiqian// 892e35fdd936d133bf8a48de140a3c666897588a05shiqian// The RefMatcher template class implements Ref(variable). It can 893e35fdd936d133bf8a48de140a3c666897588a05shiqian// only be instantiated with a reference type. This prevents a user 894e35fdd936d133bf8a48de140a3c666897588a05shiqian// from mistakenly using Ref(x) to match a non-reference function 895e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument. For example, the following will righteously cause a 896e35fdd936d133bf8a48de140a3c666897588a05shiqian// compiler error: 897e35fdd936d133bf8a48de140a3c666897588a05shiqian// 898e35fdd936d133bf8a48de140a3c666897588a05shiqian// int n; 899e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int> m1 = Ref(n); // This won't compile. 900e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int&> m2 = Ref(n); // This will compile. 901e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 902e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher; 903e35fdd936d133bf8a48de140a3c666897588a05shiqian 904e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 905e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher<T&> { 906e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Mock is a generic framework and thus needs to support 907e35fdd936d133bf8a48de140a3c666897588a05shiqian // mocking any function types, including those that take non-const 908e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference arguments. Therefore the template parameter T (and 909e35fdd936d133bf8a48de140a3c666897588a05shiqian // Super below) can be instantiated to either a const type or a 910e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const type. 911e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 912e35fdd936d133bf8a48de140a3c666897588a05shiqian // RefMatcher() takes a T& instead of const T&, as we want the 913e35fdd936d133bf8a48de140a3c666897588a05shiqian // compiler to catch using Ref(const_value) as a matcher for a 914e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference. 915e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit RefMatcher(T& x) : object_(x) {} // NOLINT 916e35fdd936d133bf8a48de140a3c666897588a05shiqian 917e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 918e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Super&>() const { 919e35fdd936d133bf8a48de140a3c666897588a05shiqian // By passing object_ (type T&) to Impl(), which expects a Super&, 920e35fdd936d133bf8a48de140a3c666897588a05shiqian // we make sure that Super is a super type of T. In particular, 921e35fdd936d133bf8a48de140a3c666897588a05shiqian // this catches using Ref(const_value) as a matcher for a 922e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference, as you cannot implicitly convert a const 923e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference to a non-const reference. 924e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Super>(object_)); 925e35fdd936d133bf8a48de140a3c666897588a05shiqian } 92632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 927e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 928e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 929e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Super&> { 930e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 931e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(Super& x) : object_(x) {} // NOLINT 932e35fdd936d133bf8a48de140a3c666897588a05shiqian 933db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // MatchAndExplain() takes a Super& (as opposed to const Super&) 934db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // in order to match the interface MatcherInterface<Super&>. 935821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( 936821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan Super& x, MatchResultListener* listener) const { 937b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "which is located @" << static_cast<const void*>(&x); 938821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return &x == &object_; 939821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 940e35fdd936d133bf8a48de140a3c666897588a05shiqian 941e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 942e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "references the variable "; 943e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 944e35fdd936d133bf8a48de140a3c666897588a05shiqian } 945e35fdd936d133bf8a48de140a3c666897588a05shiqian 946e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 947e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not reference the variable "; 948e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 949e35fdd936d133bf8a48de140a3c666897588a05shiqian } 950e35fdd936d133bf8a48de140a3c666897588a05shiqian 951e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 952e35fdd936d133bf8a48de140a3c666897588a05shiqian const Super& object_; 95332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 95432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 955e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 956e35fdd936d133bf8a48de140a3c666897588a05shiqian 957e35fdd936d133bf8a48de140a3c666897588a05shiqian T& object_; 95832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 95932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(RefMatcher); 960e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 961e35fdd936d133bf8a48de140a3c666897588a05shiqian 962e35fdd936d133bf8a48de140a3c666897588a05shiqian// Polymorphic helper functions for narrow and wide string matchers. 963e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) { 964e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveCStringEquals(lhs, rhs); 965e35fdd936d133bf8a48de140a3c666897588a05shiqian} 966e35fdd936d133bf8a48de140a3c666897588a05shiqian 967e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const wchar_t* lhs, 968e35fdd936d133bf8a48de140a3c666897588a05shiqian const wchar_t* rhs) { 969e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveWideCStringEquals(lhs, rhs); 970e35fdd936d133bf8a48de140a3c666897588a05shiqian} 971e35fdd936d133bf8a48de140a3c666897588a05shiqian 972e35fdd936d133bf8a48de140a3c666897588a05shiqian// String comparison for narrow or wide strings that can have embedded NUL 973e35fdd936d133bf8a48de140a3c666897588a05shiqian// characters. 974e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 975e35fdd936d133bf8a48de140a3c666897588a05shiqianbool CaseInsensitiveStringEquals(const StringType& s1, 976e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType& s2) { 977e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the heads equal? 978e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) { 979e35fdd936d133bf8a48de140a3c666897588a05shiqian return false; 980e35fdd936d133bf8a48de140a3c666897588a05shiqian } 981e35fdd936d133bf8a48de140a3c666897588a05shiqian 982e35fdd936d133bf8a48de140a3c666897588a05shiqian // Skip the equal heads. 983e35fdd936d133bf8a48de140a3c666897588a05shiqian const typename StringType::value_type nul = 0; 984e35fdd936d133bf8a48de140a3c666897588a05shiqian const size_t i1 = s1.find(nul), i2 = s2.find(nul); 985e35fdd936d133bf8a48de140a3c666897588a05shiqian 986e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are we at the end of either s1 or s2? 987e35fdd936d133bf8a48de140a3c666897588a05shiqian if (i1 == StringType::npos || i2 == StringType::npos) { 988e35fdd936d133bf8a48de140a3c666897588a05shiqian return i1 == i2; 989e35fdd936d133bf8a48de140a3c666897588a05shiqian } 990e35fdd936d133bf8a48de140a3c666897588a05shiqian 991e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the tails equal? 992e35fdd936d133bf8a48de140a3c666897588a05shiqian return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1)); 993e35fdd936d133bf8a48de140a3c666897588a05shiqian} 994e35fdd936d133bf8a48de140a3c666897588a05shiqian 995e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 996e35fdd936d133bf8a48de140a3c666897588a05shiqian 997e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements equality-based string matchers like StrEq, StrCaseNe, and etc. 998e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 999e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StrEqualityMatcher { 1000e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1001e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEqualityMatcher(const StringType& str, bool expect_eq, 1002e35fdd936d133bf8a48de140a3c666897588a05shiqian bool case_sensitive) 1003e35fdd936d133bf8a48de140a3c666897588a05shiqian : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {} 1004e35fdd936d133bf8a48de140a3c666897588a05shiqian 100538513a8bb154f0b6d0a4088814fe92552696d465jgm // Accepts pointer types, particularly: 100638513a8bb154f0b6d0a4088814fe92552696d465jgm // const char* 100738513a8bb154f0b6d0a4088814fe92552696d465jgm // char* 100838513a8bb154f0b6d0a4088814fe92552696d465jgm // const wchar_t* 100938513a8bb154f0b6d0a4088814fe92552696d465jgm // wchar_t* 101038513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename CharType> 101138513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(CharType* s, MatchResultListener* listener) const { 1012e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s == NULL) { 1013e35fdd936d133bf8a48de140a3c666897588a05shiqian return !expect_eq_; 1014e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1015db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplain(StringType(s), listener); 1016e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1017e35fdd936d133bf8a48de140a3c666897588a05shiqian 101838513a8bb154f0b6d0a4088814fe92552696d465jgm // Matches anything that can convert to StringType. 101938513a8bb154f0b6d0a4088814fe92552696d465jgm // 102038513a8bb154f0b6d0a4088814fe92552696d465jgm // This is a template, not just a plain function with const StringType&, 102138513a8bb154f0b6d0a4088814fe92552696d465jgm // because StringPiece has some interfering non-explicit constructors. 102238513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename MatcheeStringType> 102338513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(const MatcheeStringType& s, 1024db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 102538513a8bb154f0b6d0a4088814fe92552696d465jgm const StringType& s2(s); 102638513a8bb154f0b6d0a4088814fe92552696d465jgm const bool eq = case_sensitive_ ? s2 == string_ : 102738513a8bb154f0b6d0a4088814fe92552696d465jgm CaseInsensitiveStringEquals(s2, string_); 1028e35fdd936d133bf8a48de140a3c666897588a05shiqian return expect_eq_ == eq; 1029e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1030e35fdd936d133bf8a48de140a3c666897588a05shiqian 1031e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1032e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(expect_eq_, os); 1033e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1034e35fdd936d133bf8a48de140a3c666897588a05shiqian 1035e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1036e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(!expect_eq_, os); 1037e35fdd936d133bf8a48de140a3c666897588a05shiqian } 103832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1039e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1040e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeToHelper(bool expect_eq, ::std::ostream* os) const { 1041b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << (expect_eq ? "is " : "isn't "); 1042e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "equal to "; 1043e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!case_sensitive_) { 1044e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "(ignoring case) "; 1045e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1046e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(string_, os); 1047e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1048e35fdd936d133bf8a48de140a3c666897588a05shiqian 1049e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType string_; 1050e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool expect_eq_; 1051e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool case_sensitive_; 105232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 105332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(StrEqualityMatcher); 1054e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1055e35fdd936d133bf8a48de140a3c666897588a05shiqian 1056e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic HasSubstr(substring) matcher, which 1057e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 1058e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 1059e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 1060e35fdd936d133bf8a48de140a3c666897588a05shiqianclass HasSubstrMatcher { 1061e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1062e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit HasSubstrMatcher(const StringType& substring) 1063e35fdd936d133bf8a48de140a3c666897588a05shiqian : substring_(substring) {} 1064e35fdd936d133bf8a48de140a3c666897588a05shiqian 106538513a8bb154f0b6d0a4088814fe92552696d465jgm // Accepts pointer types, particularly: 106638513a8bb154f0b6d0a4088814fe92552696d465jgm // const char* 106738513a8bb154f0b6d0a4088814fe92552696d465jgm // char* 106838513a8bb154f0b6d0a4088814fe92552696d465jgm // const wchar_t* 106938513a8bb154f0b6d0a4088814fe92552696d465jgm // wchar_t* 107038513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename CharType> 107138513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(CharType* s, MatchResultListener* listener) const { 1072db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 1073e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1074e35fdd936d133bf8a48de140a3c666897588a05shiqian 107538513a8bb154f0b6d0a4088814fe92552696d465jgm // Matches anything that can convert to StringType. 107638513a8bb154f0b6d0a4088814fe92552696d465jgm // 107738513a8bb154f0b6d0a4088814fe92552696d465jgm // This is a template, not just a plain function with const StringType&, 107838513a8bb154f0b6d0a4088814fe92552696d465jgm // because StringPiece has some interfering non-explicit constructors. 107938513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename MatcheeStringType> 108038513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(const MatcheeStringType& s, 1081db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 108238513a8bb154f0b6d0a4088814fe92552696d465jgm const StringType& s2(s); 108338513a8bb154f0b6d0a4088814fe92552696d465jgm return s2.find(substring_) != StringType::npos; 1084e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1085e35fdd936d133bf8a48de140a3c666897588a05shiqian 1086e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes what this matcher matches. 1087e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1088e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has substring "; 1089e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(substring_, os); 1090e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1091e35fdd936d133bf8a48de140a3c666897588a05shiqian 1092e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1093e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has no substring "; 1094e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(substring_, os); 1095e35fdd936d133bf8a48de140a3c666897588a05shiqian } 109632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1097e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1098e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType substring_; 109932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 110032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(HasSubstrMatcher); 1101e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1102e35fdd936d133bf8a48de140a3c666897588a05shiqian 1103e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic StartsWith(substring) matcher, which 1104e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 1105e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 1106e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 1107e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StartsWithMatcher { 1108e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1109e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) { 1110e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1111e35fdd936d133bf8a48de140a3c666897588a05shiqian 111238513a8bb154f0b6d0a4088814fe92552696d465jgm // Accepts pointer types, particularly: 111338513a8bb154f0b6d0a4088814fe92552696d465jgm // const char* 111438513a8bb154f0b6d0a4088814fe92552696d465jgm // char* 111538513a8bb154f0b6d0a4088814fe92552696d465jgm // const wchar_t* 111638513a8bb154f0b6d0a4088814fe92552696d465jgm // wchar_t* 111738513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename CharType> 111838513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(CharType* s, MatchResultListener* listener) const { 1119db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 1120e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1121e35fdd936d133bf8a48de140a3c666897588a05shiqian 112238513a8bb154f0b6d0a4088814fe92552696d465jgm // Matches anything that can convert to StringType. 112338513a8bb154f0b6d0a4088814fe92552696d465jgm // 112438513a8bb154f0b6d0a4088814fe92552696d465jgm // This is a template, not just a plain function with const StringType&, 112538513a8bb154f0b6d0a4088814fe92552696d465jgm // because StringPiece has some interfering non-explicit constructors. 112638513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename MatcheeStringType> 112738513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(const MatcheeStringType& s, 1128db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 112938513a8bb154f0b6d0a4088814fe92552696d465jgm const StringType& s2(s); 113038513a8bb154f0b6d0a4088814fe92552696d465jgm return s2.length() >= prefix_.length() && 113138513a8bb154f0b6d0a4088814fe92552696d465jgm s2.substr(0, prefix_.length()) == prefix_; 1132e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1133e35fdd936d133bf8a48de140a3c666897588a05shiqian 1134e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1135e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "starts with "; 1136e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(prefix_, os); 1137e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1138e35fdd936d133bf8a48de140a3c666897588a05shiqian 1139e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1140e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't start with "; 1141e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(prefix_, os); 1142e35fdd936d133bf8a48de140a3c666897588a05shiqian } 114332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1144e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1145e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType prefix_; 114632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 114732de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(StartsWithMatcher); 1148e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1149e35fdd936d133bf8a48de140a3c666897588a05shiqian 1150e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic EndsWith(substring) matcher, which 1151e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 1152e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 1153e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 1154e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EndsWithMatcher { 1155e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1156e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {} 1157e35fdd936d133bf8a48de140a3c666897588a05shiqian 115838513a8bb154f0b6d0a4088814fe92552696d465jgm // Accepts pointer types, particularly: 115938513a8bb154f0b6d0a4088814fe92552696d465jgm // const char* 116038513a8bb154f0b6d0a4088814fe92552696d465jgm // char* 116138513a8bb154f0b6d0a4088814fe92552696d465jgm // const wchar_t* 116238513a8bb154f0b6d0a4088814fe92552696d465jgm // wchar_t* 116338513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename CharType> 116438513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(CharType* s, MatchResultListener* listener) const { 1165db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(StringType(s), listener); 1166e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1167e35fdd936d133bf8a48de140a3c666897588a05shiqian 116838513a8bb154f0b6d0a4088814fe92552696d465jgm // Matches anything that can convert to StringType. 116938513a8bb154f0b6d0a4088814fe92552696d465jgm // 117038513a8bb154f0b6d0a4088814fe92552696d465jgm // This is a template, not just a plain function with const StringType&, 117138513a8bb154f0b6d0a4088814fe92552696d465jgm // because StringPiece has some interfering non-explicit constructors. 117238513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename MatcheeStringType> 117338513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(const MatcheeStringType& s, 1174db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 117538513a8bb154f0b6d0a4088814fe92552696d465jgm const StringType& s2(s); 117638513a8bb154f0b6d0a4088814fe92552696d465jgm return s2.length() >= suffix_.length() && 117738513a8bb154f0b6d0a4088814fe92552696d465jgm s2.substr(s2.length() - suffix_.length()) == suffix_; 1178e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1179e35fdd936d133bf8a48de140a3c666897588a05shiqian 1180e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1181e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "ends with "; 1182e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(suffix_, os); 1183e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1184e35fdd936d133bf8a48de140a3c666897588a05shiqian 1185e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1186e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't end with "; 1187e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(suffix_, os); 1188e35fdd936d133bf8a48de140a3c666897588a05shiqian } 118932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1190e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1191e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType suffix_; 119232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 119332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EndsWithMatcher); 1194e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1195e35fdd936d133bf8a48de140a3c666897588a05shiqian 1196e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements polymorphic matchers MatchesRegex(regex) and 1197e35fdd936d133bf8a48de140a3c666897588a05shiqian// ContainsRegex(regex), which can be used as a Matcher<T> as long as 1198e35fdd936d133bf8a48de140a3c666897588a05shiqian// T can be converted to a string. 1199e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatchesRegexMatcher { 1200e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1201e35fdd936d133bf8a48de140a3c666897588a05shiqian MatchesRegexMatcher(const RE* regex, bool full_match) 1202e35fdd936d133bf8a48de140a3c666897588a05shiqian : regex_(regex), full_match_(full_match) {} 1203e35fdd936d133bf8a48de140a3c666897588a05shiqian 120438513a8bb154f0b6d0a4088814fe92552696d465jgm // Accepts pointer types, particularly: 120538513a8bb154f0b6d0a4088814fe92552696d465jgm // const char* 120638513a8bb154f0b6d0a4088814fe92552696d465jgm // char* 120738513a8bb154f0b6d0a4088814fe92552696d465jgm // const wchar_t* 120838513a8bb154f0b6d0a4088814fe92552696d465jgm // wchar_t* 120938513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename CharType> 121038513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(CharType* s, MatchResultListener* listener) const { 1211db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return s != NULL && MatchAndExplain(internal::string(s), listener); 1212e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1213e35fdd936d133bf8a48de140a3c666897588a05shiqian 121438513a8bb154f0b6d0a4088814fe92552696d465jgm // Matches anything that can convert to internal::string. 121538513a8bb154f0b6d0a4088814fe92552696d465jgm // 121638513a8bb154f0b6d0a4088814fe92552696d465jgm // This is a template, not just a plain function with const internal::string&, 121738513a8bb154f0b6d0a4088814fe92552696d465jgm // because StringPiece has some interfering non-explicit constructors. 121838513a8bb154f0b6d0a4088814fe92552696d465jgm template <class MatcheeStringType> 121938513a8bb154f0b6d0a4088814fe92552696d465jgm bool MatchAndExplain(const MatcheeStringType& s, 1220db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 122138513a8bb154f0b6d0a4088814fe92552696d465jgm const internal::string& s2(s); 122238513a8bb154f0b6d0a4088814fe92552696d465jgm return full_match_ ? RE::FullMatch(s2, *regex_) : 122338513a8bb154f0b6d0a4088814fe92552696d465jgm RE::PartialMatch(s2, *regex_); 1224e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1225e35fdd936d133bf8a48de140a3c666897588a05shiqian 1226e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1227e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << (full_match_ ? "matches" : "contains") 1228e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 1229e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 1230e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1231e35fdd936d133bf8a48de140a3c666897588a05shiqian 1232e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1233e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't " << (full_match_ ? "match" : "contain") 1234e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 1235e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 1236e35fdd936d133bf8a48de140a3c666897588a05shiqian } 123732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1238e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1239e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::linked_ptr<const RE> regex_; 1240e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool full_match_; 124132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 124232de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MatchesRegexMatcher); 1243e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1244e35fdd936d133bf8a48de140a3c666897588a05shiqian 1245e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares the two fields of a 2-tuple 1246e35fdd936d133bf8a48de140a3c666897588a05shiqian// using one of the ==, <=, <, etc, operators. The two fields being 1247e35fdd936d133bf8a48de140a3c666897588a05shiqian// compared don't have to have the same type. 1248e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1249e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq() can be 1250e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match a tuple<int, short>, a tuple<const long&, double>, 1251e35fdd936d133bf8a48de140a3c666897588a05shiqian// etc). Therefore we use a template type conversion operator in the 1252e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation. 1253e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1254e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 1255e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 1256ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan#define GMOCK_IMPLEMENT_COMPARISON2_MATCHER_(name, op, relation) \ 1257e35fdd936d133bf8a48de140a3c666897588a05shiqian class name##2Matcher { \ 1258e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 1259e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T1, typename T2> \ 1260ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan operator Matcher< ::std::tr1::tuple<T1, T2> >() const { \ 1261ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return MakeMatcher(new Impl< ::std::tr1::tuple<T1, T2> >); \ 1262ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } \ 1263ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan template <typename T1, typename T2> \ 1264e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const ::std::tr1::tuple<T1, T2>&>() const { \ 1265ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return MakeMatcher(new Impl<const ::std::tr1::tuple<T1, T2>&>); \ 1266e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1267e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 1268ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan template <typename Tuple> \ 1269ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan class Impl : public MatcherInterface<Tuple> { \ 1270e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 1271821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain( \ 1272ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Tuple args, \ 1273821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* /* listener */) const { \ 1274e35fdd936d133bf8a48de140a3c666897588a05shiqian return ::std::tr1::get<0>(args) op ::std::tr1::get<1>(args); \ 1275e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1276e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 1277ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << "are " relation; \ 1278e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1279e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 1280ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << "aren't " relation; \ 1281e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 1282e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 1283e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1284e35fdd936d133bf8a48de140a3c666897588a05shiqian 1285e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(), Ge(), Gt(), Le(), Lt(), and Ne() respectively. 1286ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Eq, ==, "an equal pair"); 1287ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_( 1288ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Ge, >=, "a pair where the first >= the second"); 1289ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_( 1290ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Gt, >, "a pair where the first > the second"); 1291ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_( 1292ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Le, <=, "a pair where the first <= the second"); 1293ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_( 1294ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Lt, <, "a pair where the first < the second"); 1295ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanGMOCK_IMPLEMENT_COMPARISON2_MATCHER_(Ne, !=, "an unequal pair"); 1296e35fdd936d133bf8a48de140a3c666897588a05shiqian 1297e0d051ea64dd5f32d5b6af9831747d1acb2a9c40zhanyong.wan#undef GMOCK_IMPLEMENT_COMPARISON2_MATCHER_ 1298e35fdd936d133bf8a48de140a3c666897588a05shiqian 1299c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the Not(...) matcher for a particular argument type T. 1300c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// We do not nest it inside the NotMatcher class template, as that 1301c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// will prevent different instantiations of NotMatcher from sharing 1302c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// the same NotMatcherImpl<T> class. 1303c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1304c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass NotMatcherImpl : public MatcherInterface<T> { 1305c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1306c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan explicit NotMatcherImpl(const Matcher<T>& matcher) 1307c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher_(matcher) {} 1308c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1309821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1310821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return !matcher_.MatchAndExplain(x, listener); 1311c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1312c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1313c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1314c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher_.DescribeNegationTo(os); 1315c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1316c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1317c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1318c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher_.DescribeTo(os); 1319c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1320c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1321c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1322c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher_; 132332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 132432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(NotMatcherImpl); 1325c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1326c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1327e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Not(m) matcher, which matches a value that doesn't 1328e35fdd936d133bf8a48de140a3c666897588a05shiqian// match matcher m. 1329e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1330e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotMatcher { 1331e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1332e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {} 1333e35fdd936d133bf8a48de140a3c666897588a05shiqian 1334e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows Not(m) to be used 1335e35fdd936d133bf8a48de140a3c666897588a05shiqian // to match any type m can match. 1336e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1337e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1338c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan return Matcher<T>(new NotMatcherImpl<T>(SafeMatcherCast<T>(matcher_))); 1339e35fdd936d133bf8a48de140a3c666897588a05shiqian } 134032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1341e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1342c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan InnerMatcher matcher_; 134332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 134432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(NotMatcher); 1345c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1346e35fdd936d133bf8a48de140a3c666897588a05shiqian 1347c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the AllOf(m1, m2) matcher for a particular argument type 1348c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// T. We do not nest it inside the BothOfMatcher class template, as 1349c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// that will prevent different instantiations of BothOfMatcher from 1350c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// sharing the same BothOfMatcherImpl<T> class. 1351c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1352c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass BothOfMatcherImpl : public MatcherInterface<T> { 1353c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1354c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan BothOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 1355c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher1_(matcher1), matcher2_(matcher2) {} 1356e35fdd936d133bf8a48de140a3c666897588a05shiqian 1357c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1358c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << "("; 1359c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher1_.DescribeTo(os); 1360c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ") and ("; 1361c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher2_.DescribeTo(os); 1362c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ")"; 1363c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1364e35fdd936d133bf8a48de140a3c666897588a05shiqian 1365c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1366b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "("; 1367b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher1_.DescribeNegationTo(os); 1368b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ") or ("; 1369b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher2_.DescribeNegationTo(os); 1370b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ")"; 1371c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1372e35fdd936d133bf8a48de140a3c666897588a05shiqian 1373821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1374821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // If either matcher1_ or matcher2_ doesn't match x, we only need 1375821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // to explain why one of them fails. 1376821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener1; 1377821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher1_.MatchAndExplain(x, &listener1)) { 1378821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener1.str(); 1379821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1380821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1381c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1382821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener2; 1383821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!matcher2_.MatchAndExplain(x, &listener2)) { 1384821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener2.str(); 1385821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1386821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1387c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1388821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Otherwise we need to explain why *both* of them match. 1389821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s1 = listener1.str(); 1390821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s2 = listener2.str(); 1391821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1392821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s1 == "") { 1393821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s2; 1394c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } else { 1395821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s1; 1396821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s2 != "") { 1397b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ", and " << s2; 1398c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1399c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1400821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1401c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 140232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1403c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1404c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher1_; 1405c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher2_; 140632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 140732de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(BothOfMatcherImpl); 1408e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1409e35fdd936d133bf8a48de140a3c666897588a05shiqian 1410616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#if GTEST_LANG_CXX11 1411616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// MatcherList provides mechanisms for storing a variable number of matchers in 1412616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// a list structure (ListType) and creating a combining matcher from such a 1413616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// list. 1414616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// The template is defined recursively using the following template paramters: 1415616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// * kSize is the length of the MatcherList. 1416616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// * Head is the type of the first matcher of the list. 1417616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// * Tail denotes the types of the remaining matchers of the list. 1418616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <int kSize, typename Head, typename... Tail> 1419616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wanstruct MatcherList { 1420616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan typedef MatcherList<kSize - 1, Tail...> MatcherListTail; 1421616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan typedef pair<Head, typename MatcherListTail::ListType> ListType; 1422616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1423616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // BuildList stores variadic type values in a nested pair structure. 1424616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // Example: 1425616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // MatcherList<3, int, string, float>::BuildList(5, "foo", 2.0) will return 1426616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // the corresponding result of type pair<int, pair<string, float>>. 1427616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan static ListType BuildList(const Head& matcher, const Tail&... tail) { 1428616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return ListType(matcher, MatcherListTail::BuildList(tail...)); 1429616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1430616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1431616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // CreateMatcher<T> creates a Matcher<T> from a given list of matchers (built 1432616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // by BuildList()). CombiningMatcher<T> is used to combine the matchers of the 1433616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // list. CombiningMatcher<T> must implement MatcherInterface<T> and have a 1434616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // constructor taking two Matcher<T>s as input. 1435616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan template <typename T, template <typename /* T */> class CombiningMatcher> 1436616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan static Matcher<T> CreateMatcher(const ListType& matchers) { 1437616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return Matcher<T>(new CombiningMatcher<T>( 1438616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan SafeMatcherCast<T>(matchers.first), 1439616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan MatcherListTail::template CreateMatcher<T, CombiningMatcher>( 1440616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan matchers.second))); 1441616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1442616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan}; 1443616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1444616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// The following defines the base case for the recursive definition of 1445616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// MatcherList. 1446616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <typename Matcher1, typename Matcher2> 1447616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wanstruct MatcherList<2, Matcher1, Matcher2> { 1448616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan typedef pair<Matcher1, Matcher2> ListType; 1449616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1450616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan static ListType BuildList(const Matcher1& matcher1, 1451616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan const Matcher2& matcher2) { 1452616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return pair<Matcher1, Matcher2>(matcher1, matcher2); 1453616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1454616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1455616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan template <typename T, template <typename /* T */> class CombiningMatcher> 1456616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan static Matcher<T> CreateMatcher(const ListType& matchers) { 1457616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return Matcher<T>(new CombiningMatcher<T>( 1458616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan SafeMatcherCast<T>(matchers.first), 1459616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan SafeMatcherCast<T>(matchers.second))); 1460616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1461616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan}; 1462616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1463616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// VariadicMatcher is used for the variadic implementation of 1464616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// AllOf(m_1, m_2, ...) and AnyOf(m_1, m_2, ...). 1465616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// CombiningMatcher<T> is used to recursively combine the provided matchers 1466616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// (of type Args...). 1467616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <template <typename T> class CombiningMatcher, typename... Args> 1468616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wanclass VariadicMatcher { 1469616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan public: 1470616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan VariadicMatcher(const Args&... matchers) // NOLINT 1471616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan : matchers_(MatcherListType::BuildList(matchers...)) {} 1472616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1473616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // This template type conversion operator allows an 1474616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // VariadicMatcher<Matcher1, Matcher2...> object to match any type that 1475616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // all of the provided matchers (Matcher1, Matcher2, ...) can match. 1476616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan template <typename T> 1477616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan operator Matcher<T>() const { 1478616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return MatcherListType::template CreateMatcher<T, CombiningMatcher>( 1479616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan matchers_); 1480616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1481616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1482616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan private: 1483616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan typedef MatcherList<sizeof...(Args), Args...> MatcherListType; 1484616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1485616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan const typename MatcherListType::ListType matchers_; 1486616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1487616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan GTEST_DISALLOW_ASSIGN_(VariadicMatcher); 1488616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan}; 1489616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1490616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <typename... Args> 1491616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wanusing AllOfMatcher = VariadicMatcher<BothOfMatcherImpl, Args...>; 1492616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1493616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#endif // GTEST_LANG_CXX11 1494616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1495e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AllOf(m_1, ..., m_n) matcher, which 1496e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches all of the matchers m_1, ..., and m_n. 1497e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1498e35fdd936d133bf8a48de140a3c666897588a05shiqianclass BothOfMatcher { 1499e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1500e35fdd936d133bf8a48de140a3c666897588a05shiqian BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 1501e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1502e35fdd936d133bf8a48de140a3c666897588a05shiqian 1503e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 1504e35fdd936d133bf8a48de140a3c666897588a05shiqian // BothOfMatcher<Matcher1, Matcher2> object to match any type that 1505e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 1506e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1507e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1508c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan return Matcher<T>(new BothOfMatcherImpl<T>(SafeMatcherCast<T>(matcher1_), 1509c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan SafeMatcherCast<T>(matcher2_))); 1510e35fdd936d133bf8a48de140a3c666897588a05shiqian } 151132de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1512e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1513c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan Matcher1 matcher1_; 1514c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan Matcher2 matcher2_; 151532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 151632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(BothOfMatcher); 1517c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan}; 1518e35fdd936d133bf8a48de140a3c666897588a05shiqian 1519c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// Implements the AnyOf(m1, m2) matcher for a particular argument type 1520c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// T. We do not nest it inside the AnyOfMatcher class template, as 1521c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// that will prevent different instantiations of AnyOfMatcher from 1522c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan// sharing the same EitherOfMatcherImpl<T> class. 1523c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wantemplate <typename T> 1524c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wanclass EitherOfMatcherImpl : public MatcherInterface<T> { 1525c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan public: 1526c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan EitherOfMatcherImpl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 1527c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan : matcher1_(matcher1), matcher2_(matcher2) {} 1528e35fdd936d133bf8a48de140a3c666897588a05shiqian 1529c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 1530c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << "("; 1531c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher1_.DescribeTo(os); 1532c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ") or ("; 1533c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan matcher2_.DescribeTo(os); 1534c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan *os << ")"; 1535c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1536e35fdd936d133bf8a48de140a3c666897588a05shiqian 1537c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 1538b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "("; 1539b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher1_.DescribeNegationTo(os); 1540b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ") and ("; 1541b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher2_.DescribeNegationTo(os); 1542b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << ")"; 1543c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 1544c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1545821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T x, MatchResultListener* listener) const { 1546821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // If either matcher1_ or matcher2_ matches x, we just need to 1547821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // explain why *one* of them matches. 1548821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener1; 1549821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matcher1_.MatchAndExplain(x, &listener1)) { 1550821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener1.str(); 1551821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1552821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1553c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1554821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener2; 1555821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matcher2_.MatchAndExplain(x, &listener2)) { 1556821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << listener2.str(); 1557821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 1558821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 1559c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan 1560821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Otherwise we need to explain why *both* of them fail. 1561821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s1 = listener1.str(); 1562821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string s2 = listener2.str(); 1563821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1564821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s1 == "") { 1565821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s2; 1566821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } else { 1567821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan *listener << s1; 1568821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (s2 != "") { 1569b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ", and " << s2; 1570e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1571e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1572821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1573c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan } 157432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1575c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan private: 1576c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher1_; 1577c6a412397bc98f120d5e79d4a64e3972854b5af3zhanyong.wan const Matcher<T> matcher2_; 157832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 157932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EitherOfMatcherImpl); 1580e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1581e35fdd936d133bf8a48de140a3c666897588a05shiqian 1582616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#if GTEST_LANG_CXX11 1583616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// AnyOfMatcher is used for the variadic implementation of AnyOf(m_1, m_2, ...). 1584616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <typename... Args> 1585616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wanusing AnyOfMatcher = VariadicMatcher<EitherOfMatcherImpl, Args...>; 1586616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1587616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#endif // GTEST_LANG_CXX11 1588616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1589e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which 1590e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches at least one of the matchers m_1, ..., 1591e35fdd936d133bf8a48de140a3c666897588a05shiqian// and m_n. 1592e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1593e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EitherOfMatcher { 1594e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1595e35fdd936d133bf8a48de140a3c666897588a05shiqian EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 1596e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1597e35fdd936d133bf8a48de140a3c666897588a05shiqian 1598e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 1599e35fdd936d133bf8a48de140a3c666897588a05shiqian // EitherOfMatcher<Matcher1, Matcher2> object to match any type that 1600e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 1601e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1602e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 160316cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan return Matcher<T>(new EitherOfMatcherImpl<T>( 160416cf473930c01cd7a1a51dff65f22c541fbad5b8zhanyong.wan SafeMatcherCast<T>(matcher1_), SafeMatcherCast<T>(matcher2_))); 1605e35fdd936d133bf8a48de140a3c666897588a05shiqian } 160632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1607e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1608e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher1 matcher1_; 1609e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher2 matcher2_; 161032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 161132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(EitherOfMatcher); 1612e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1613e35fdd936d133bf8a48de140a3c666897588a05shiqian 1614e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Truly(pred), which turns a predicate into a 1615e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher. 1616e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 1617e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TrulyMatcher { 1618e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1619e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit TrulyMatcher(Predicate pred) : predicate_(pred) {} 1620e35fdd936d133bf8a48de140a3c666897588a05shiqian 1621e35fdd936d133bf8a48de140a3c666897588a05shiqian // This method template allows Truly(pred) to be used as a matcher 1622e35fdd936d133bf8a48de140a3c666897588a05shiqian // for type T where T is the argument type of predicate 'pred'. The 1623e35fdd936d133bf8a48de140a3c666897588a05shiqian // argument is passed by reference as the predicate may be 1624e35fdd936d133bf8a48de140a3c666897588a05shiqian // interested in the address of the argument. 1625e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1626db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(T& x, // NOLINT 1627db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* /* listener */) const { 16288d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // Without the if-statement, MSVC sometimes warns about converting 16298d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // a value to bool (warning 4800). 16308d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // 16318d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // We cannot write 'return !!predicate_(x);' as that doesn't work 16328d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // when predicate_(x) returns a class convertible to bool but 16338d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan // having no operator!(). 16348d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan if (predicate_(x)) 16358d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan return true; 16368d3dc0cdd870ecc53d8a8ba30566b3cd70910863zhanyong.wan return false; 1637e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1638e35fdd936d133bf8a48de140a3c666897588a05shiqian 1639e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1640e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "satisfies the given predicate"; 1641e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1642e35fdd936d133bf8a48de140a3c666897588a05shiqian 1643e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1644e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't satisfy the given predicate"; 1645e35fdd936d133bf8a48de140a3c666897588a05shiqian } 164632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1647e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1648e35fdd936d133bf8a48de140a3c666897588a05shiqian Predicate predicate_; 164932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 165032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(TrulyMatcher); 1651e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1652e35fdd936d133bf8a48de140a3c666897588a05shiqian 1653e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Matches(matcher), which turns a matcher into 1654e35fdd936d133bf8a48de140a3c666897588a05shiqian// a predicate. 1655e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1656e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherAsPredicate { 1657e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1658e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {} 1659e35fdd936d133bf8a48de140a3c666897588a05shiqian 1660e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template operator() allows Matches(m) to be used as a 1661e35fdd936d133bf8a48de140a3c666897588a05shiqian // predicate on type T where m is a matcher on type T. 1662e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1663e35fdd936d133bf8a48de140a3c666897588a05shiqian // The argument x is passed by reference instead of by value, as 1664e35fdd936d133bf8a48de140a3c666897588a05shiqian // some matcher may be interested in its address (e.g. as in 1665e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matches(Ref(n))(x)). 1666e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1667e35fdd936d133bf8a48de140a3c666897588a05shiqian bool operator()(const T& x) const { 1668e35fdd936d133bf8a48de140a3c666897588a05shiqian // We let matcher_ commit to a particular type here instead of 1669e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the MatcherAsPredicate object was constructed. This 1670e35fdd936d133bf8a48de140a3c666897588a05shiqian // allows us to write Matches(m) where m is a polymorphic matcher 1671e35fdd936d133bf8a48de140a3c666897588a05shiqian // (e.g. Eq(5)). 1672e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1673e35fdd936d133bf8a48de140a3c666897588a05shiqian // If we write Matcher<T>(matcher_).Matches(x) here, it won't 1674e35fdd936d133bf8a48de140a3c666897588a05shiqian // compile when matcher_ has type Matcher<const T&>; if we write 1675e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_).Matches(x) here, it won't compile 1676e35fdd936d133bf8a48de140a3c666897588a05shiqian // when matcher_ has type Matcher<T>; if we just write 1677e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_.Matches(x), it won't compile when matcher_ is 1678e35fdd936d133bf8a48de140a3c666897588a05shiqian // polymorphic, e.g. Eq(5). 1679e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1680e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherCast<const T&>() is necessary for making the code work 1681e35fdd936d133bf8a48de140a3c666897588a05shiqian // in all of the above situations. 1682e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatcherCast<const T&>(matcher_).Matches(x); 1683e35fdd936d133bf8a48de140a3c666897588a05shiqian } 168432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1685e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1686e35fdd936d133bf8a48de140a3c666897588a05shiqian M matcher_; 168732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 168832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(MatcherAsPredicate); 1689e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1690e35fdd936d133bf8a48de140a3c666897588a05shiqian 1691e35fdd936d133bf8a48de140a3c666897588a05shiqian// For implementing ASSERT_THAT() and EXPECT_THAT(). The template 1692e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument M must be a type that can be converted to a matcher. 1693e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1694e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PredicateFormatterFromMatcher { 1695e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1696e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PredicateFormatterFromMatcher(const M& m) : matcher_(m) {} 1697e35fdd936d133bf8a48de140a3c666897588a05shiqian 1698e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template () operator allows a PredicateFormatterFromMatcher 1699e35fdd936d133bf8a48de140a3c666897588a05shiqian // object to act as a predicate-formatter suitable for using with 1700e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Test's EXPECT_PRED_FORMAT1() macro. 1701e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1702e35fdd936d133bf8a48de140a3c666897588a05shiqian AssertionResult operator()(const char* value_text, const T& x) const { 1703e35fdd936d133bf8a48de140a3c666897588a05shiqian // We convert matcher_ to a Matcher<const T&> *now* instead of 1704e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the PredicateFormatterFromMatcher object was constructed, 1705e35fdd936d133bf8a48de140a3c666897588a05shiqian // as matcher_ may be polymorphic (e.g. NotNull()) and we won't 1706e35fdd936d133bf8a48de140a3c666897588a05shiqian // know which type to instantiate it to until we actually see the 1707e35fdd936d133bf8a48de140a3c666897588a05shiqian // type of x here. 1708e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1709f4274520da256a3e8dd4fe2aa2e714f44ad89d18zhanyong.wan // We write SafeMatcherCast<const T&>(matcher_) instead of 1710e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_), as the latter won't compile when 1711e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_ has type Matcher<T> (e.g. An<int>()). 1712f4274520da256a3e8dd4fe2aa2e714f44ad89d18zhanyong.wan // We don't write MatcherCast<const T&> either, as that allows 1713f4274520da256a3e8dd4fe2aa2e714f44ad89d18zhanyong.wan // potentially unsafe downcasting of the matcher argument. 1714f4274520da256a3e8dd4fe2aa2e714f44ad89d18zhanyong.wan const Matcher<const T&> matcher = SafeMatcherCast<const T&>(matcher_); 1715821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener listener; 1716b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (MatchPrintAndExplain(x, matcher, &listener)) 1717e35fdd936d133bf8a48de140a3c666897588a05shiqian return AssertionSuccess(); 1718b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan 1719b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ::std::stringstream ss; 1720b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ss << "Value of: " << value_text << "\n" 1721b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan << "Expected: "; 1722b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan matcher.DescribeTo(&ss); 1723b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan ss << "\n Actual: " << listener.str(); 1724b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan return AssertionFailure() << ss.str(); 1725e35fdd936d133bf8a48de140a3c666897588a05shiqian } 172632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1727e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1728e35fdd936d133bf8a48de140a3c666897588a05shiqian const M matcher_; 172932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 173032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PredicateFormatterFromMatcher); 1731e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1732e35fdd936d133bf8a48de140a3c666897588a05shiqian 1733e35fdd936d133bf8a48de140a3c666897588a05shiqian// A helper function for converting a matcher to a predicate-formatter 1734e35fdd936d133bf8a48de140a3c666897588a05shiqian// without the user needing to explicitly write the type. This is 1735e35fdd936d133bf8a48de140a3c666897588a05shiqian// used for implementing ASSERT_THAT() and EXPECT_THAT(). 1736e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1737e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PredicateFormatterFromMatcher<M> 1738e35fdd936d133bf8a48de140a3c666897588a05shiqianMakePredicateFormatterFromMatcher(const M& matcher) { 1739e35fdd936d133bf8a48de140a3c666897588a05shiqian return PredicateFormatterFromMatcher<M>(matcher); 1740e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1741e35fdd936d133bf8a48de140a3c666897588a05shiqian 1742616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Implements the polymorphic floating point equality matcher, which matches 1743616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// two float values using ULP-based approximation or, optionally, a 1744616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// user-specified epsilon. The template is meant to be instantiated with 1745616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// FloatType being either float or double. 1746e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename FloatType> 1747e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FloatingEqMatcher { 1748e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1749e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructor for FloatingEqMatcher. 1750e35fdd936d133bf8a48de140a3c666897588a05shiqian // The matcher's input will be compared with rhs. The matcher treats two 1751e35fdd936d133bf8a48de140a3c666897588a05shiqian // NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards, 1752616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // equality comparisons between NANs will always return false. We specify a 1753616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // negative max_abs_error_ term to indicate that ULP-based approximation will 1754616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // be used for comparison. 1755e35fdd936d133bf8a48de140a3c666897588a05shiqian FloatingEqMatcher(FloatType rhs, bool nan_eq_nan) : 1756616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan rhs_(rhs), nan_eq_nan_(nan_eq_nan), max_abs_error_(-1) { 1757616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1758616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1759616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // Constructor that supports a user-specified max_abs_error that will be used 1760616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // for comparison instead of ULP-based approximation. The max absolute 1761616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // should be non-negative. 1762616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan FloatingEqMatcher(FloatType rhs, bool nan_eq_nan, FloatType max_abs_error) : 1763616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan rhs_(rhs), nan_eq_nan_(nan_eq_nan), max_abs_error_(max_abs_error) { 1764616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan GTEST_CHECK_(max_abs_error >= 0) 1765616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan << ", where max_abs_error is" << max_abs_error; 1766616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1767e35fdd936d133bf8a48de140a3c666897588a05shiqian 1768e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements floating point equality matcher as a Matcher<T>. 1769e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1770e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1771e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1772616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan Impl(FloatType rhs, bool nan_eq_nan, FloatType max_abs_error) : 1773616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan rhs_(rhs), nan_eq_nan_(nan_eq_nan), max_abs_error_(max_abs_error) {} 1774e35fdd936d133bf8a48de140a3c666897588a05shiqian 1775821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T value, 1776821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* /* listener */) const { 1777e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatingPoint<FloatType> lhs(value), rhs(rhs_); 1778e35fdd936d133bf8a48de140a3c666897588a05shiqian 1779e35fdd936d133bf8a48de140a3c666897588a05shiqian // Compares NaNs first, if nan_eq_nan_ is true. 1780616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan if (lhs.is_nan() || rhs.is_nan()) { 1781616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan if (lhs.is_nan() && rhs.is_nan()) { 1782616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return nan_eq_nan_; 1783616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1784616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // One is nan; the other is not nan. 1785616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return false; 1786616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1787616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan if (HasMaxAbsError()) { 1788616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // We perform an equality check so that inf will match inf, regardless 1789616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // of error bounds. If the result of value - rhs_ would result in 1790616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // overflow or if either value is inf, the default result is infinity, 1791616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // which should only match if max_abs_error_ is also infinity. 1792616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return value == rhs_ || fabs(value - rhs_) <= max_abs_error_; 1793616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } else { 1794616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return lhs.AlmostEquals(rhs); 1795e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1796e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1797e35fdd936d133bf8a48de140a3c666897588a05shiqian 1798e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1799e35fdd936d133bf8a48de140a3c666897588a05shiqian // os->precision() returns the previously set precision, which we 1800e35fdd936d133bf8a48de140a3c666897588a05shiqian // store to restore the ostream to its original configuration 1801e35fdd936d133bf8a48de140a3c666897588a05shiqian // after outputting. 1802e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1803e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1804e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1805e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1806e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NaN"; 1807e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1808e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 1809e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1810e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1811e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is approximately " << rhs_; 1812616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan if (HasMaxAbsError()) { 1813616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan *os << " (absolute error <= " << max_abs_error_ << ")"; 1814616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1815e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1816e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1817e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1818e35fdd936d133bf8a48de140a3c666897588a05shiqian 1819e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1820e35fdd936d133bf8a48de140a3c666897588a05shiqian // As before, get original precision. 1821e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1822e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1823e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1824e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1825b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't NaN"; 1826e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1827e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is anything"; 1828e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1829e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1830b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't approximately " << rhs_; 1831616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan if (HasMaxAbsError()) { 1832616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan *os << " (absolute error > " << max_abs_error_ << ")"; 1833616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1834e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1835e35fdd936d133bf8a48de140a3c666897588a05shiqian // Restore original precision. 1836e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1837e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1838e35fdd936d133bf8a48de140a3c666897588a05shiqian 1839e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1840616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan bool HasMaxAbsError() const { 1841616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return max_abs_error_ >= 0; 1842616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan } 1843616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 1844e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1845e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 1846616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // max_abs_error will be used for value comparison when >= 0. 1847616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan const FloatType max_abs_error_; 184832de5f53763125925e078498250f7e73a88de9edzhanyong.wan 184932de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 1850e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1851e35fdd936d133bf8a48de140a3c666897588a05shiqian 1852e35fdd936d133bf8a48de140a3c666897588a05shiqian // The following 3 type conversion operators allow FloatEq(rhs) and 1853e35fdd936d133bf8a48de140a3c666897588a05shiqian // NanSensitiveFloatEq(rhs) to be used as a Matcher<float>, a 1854e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const float&>, or a Matcher<float&>, but nothing else. 1855e35fdd936d133bf8a48de140a3c666897588a05shiqian // (While Google's C++ coding style doesn't allow arguments passed 1856e35fdd936d133bf8a48de140a3c666897588a05shiqian // by non-const reference, we may see them in code not conforming to 1857e35fdd936d133bf8a48de140a3c666897588a05shiqian // the style. Therefore Google Mock needs to support them.) 1858e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType>() const { 1859616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return MakeMatcher(new Impl<FloatType>(rhs_, nan_eq_nan_, max_abs_error_)); 1860e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1861e35fdd936d133bf8a48de140a3c666897588a05shiqian 1862e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const FloatType&>() const { 1863616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return MakeMatcher( 1864616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan new Impl<const FloatType&>(rhs_, nan_eq_nan_, max_abs_error_)); 1865e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1866e35fdd936d133bf8a48de140a3c666897588a05shiqian 1867e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType&>() const { 1868616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return MakeMatcher(new Impl<FloatType&>(rhs_, nan_eq_nan_, max_abs_error_)); 1869e35fdd936d133bf8a48de140a3c666897588a05shiqian } 187079a367eb217fcd47e2beaf8c0f87fe6d5926f739jgm 1871e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1872e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1873e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 1874616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan // max_abs_error will be used for value comparison when >= 0. 1875616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan const FloatType max_abs_error_; 187632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 187732de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(FloatingEqMatcher); 1878e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1879e35fdd936d133bf8a48de140a3c666897588a05shiqian 1880e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Pointee(m) matcher for matching a pointer whose 1881e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointee matches matcher m. The pointer can be either raw or smart. 1882e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1883e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PointeeMatcher { 1884e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1885e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {} 1886e35fdd936d133bf8a48de140a3c666897588a05shiqian 1887e35fdd936d133bf8a48de140a3c666897588a05shiqian // This type conversion operator template allows Pointee(m) to be 1888e35fdd936d133bf8a48de140a3c666897588a05shiqian // used as a matcher for any pointer type whose pointee type is 1889e35fdd936d133bf8a48de140a3c666897588a05shiqian // compatible with the inner matcher, where type Pointer can be 1890e35fdd936d133bf8a48de140a3c666897588a05shiqian // either a raw pointer or a smart pointer. 1891e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1892e35fdd936d133bf8a48de140a3c666897588a05shiqian // The reason we do this instead of relying on 1893e35fdd936d133bf8a48de140a3c666897588a05shiqian // MakePolymorphicMatcher() is that the latter is not flexible 1894e35fdd936d133bf8a48de140a3c666897588a05shiqian // enough for implementing the DescribeTo() method of Pointee(). 1895e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1896e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Pointer>() const { 1897e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Pointer>(matcher_)); 1898e35fdd936d133bf8a48de140a3c666897588a05shiqian } 189932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1900e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1901e35fdd936d133bf8a48de140a3c666897588a05shiqian // The monomorphic implementation that works for a particular pointer type. 1902e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1903e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Pointer> { 1904e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 190502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef typename PointeeOf<GTEST_REMOVE_CONST_( // NOLINT 190602f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_REMOVE_REFERENCE_(Pointer))>::type Pointee; 1907e35fdd936d133bf8a48de140a3c666897588a05shiqian 1908e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const InnerMatcher& matcher) 1909e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher_(MatcherCast<const Pointee&>(matcher)) {} 1910e35fdd936d133bf8a48de140a3c666897588a05shiqian 1911e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1912e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "points to a value that "; 1913e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1914e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1915e35fdd936d133bf8a48de140a3c666897588a05shiqian 1916e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1917e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not point to a value that "; 1918e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1919e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1920e35fdd936d133bf8a48de140a3c666897588a05shiqian 1921821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Pointer pointer, 1922821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 1923e35fdd936d133bf8a48de140a3c666897588a05shiqian if (GetRawPointer(pointer) == NULL) 1924821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1925e35fdd936d133bf8a48de140a3c666897588a05shiqian 1926676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to "; 1927676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(*pointer, matcher_, listener); 1928e35fdd936d133bf8a48de140a3c666897588a05shiqian } 192932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1930e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1931e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const Pointee&> matcher_; 193232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 193332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 1934e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1935e35fdd936d133bf8a48de140a3c666897588a05shiqian 1936e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher matcher_; 193732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 193832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PointeeMatcher); 1939e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1940e35fdd936d133bf8a48de140a3c666897588a05shiqian 1941e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Field() matcher for matching a field (i.e. member 1942e35fdd936d133bf8a48de140a3c666897588a05shiqian// variable) of an object. 1943e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType> 1944e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FieldMatcher { 1945e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1946e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldMatcher(FieldType Class::*field, 1947e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&>& matcher) 1948e35fdd936d133bf8a48de140a3c666897588a05shiqian : field_(field), matcher_(matcher) {} 1949e35fdd936d133bf8a48de140a3c666897588a05shiqian 1950e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1951676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given field "; 1952e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1953e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1954e35fdd936d133bf8a48de140a3c666897588a05shiqian 1955e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1956676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given field "; 1957e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1958e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1959e35fdd936d133bf8a48de140a3c666897588a05shiqian 1960db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan template <typename T> 1961db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const T& value, MatchResultListener* listener) const { 1962db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl( 1963db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan typename ::testing::internal:: 196402f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan is_pointer<GTEST_REMOVE_CONST_(T)>::type(), 1965db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan value, listener); 1966db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 1967db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan 1968db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan private: 1969db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // The first argument of MatchAndExplainImpl() is needed to help 197018490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Symbian's C++ compiler choose which overload to use. Its type is 197118490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // true_type iff the Field() matcher is used to match a pointer. 1972db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, 1973db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1974676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose given field is "; 1975676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(obj.*field_, matcher_, listener); 1976e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1977e35fdd936d133bf8a48de140a3c666897588a05shiqian 1978db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, 1979db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 1980821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (p == NULL) 1981821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 1982821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 1983676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to an object "; 1984821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Since *p has a field, it must be a class/struct/union type and 1985821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // thus cannot be a pointer. Therefore we pass false_type() as 1986821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // the first argument. 1987db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl(false_type(), *p, listener); 1988e35fdd936d133bf8a48de140a3c666897588a05shiqian } 198932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 1990e35fdd936d133bf8a48de140a3c666897588a05shiqian const FieldType Class::*field_; 1991e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&> matcher_; 199232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 199332de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(FieldMatcher); 1994e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1995e35fdd936d133bf8a48de140a3c666897588a05shiqian 1996e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Property() matcher for matching a property 1997e35fdd936d133bf8a48de140a3c666897588a05shiqian// (i.e. return value of a getter method) of an object. 1998e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType> 1999e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PropertyMatcher { 2000e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 2001e35fdd936d133bf8a48de140a3c666897588a05shiqian // The property may have a reference type, so 'const PropertyType&' 2002e35fdd936d133bf8a48de140a3c666897588a05shiqian // may cause double references and fail to compile. That's why we 200302f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan // need GTEST_REFERENCE_TO_CONST, which works regardless of 2004e35fdd936d133bf8a48de140a3c666897588a05shiqian // PropertyType being a reference or not. 200502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REFERENCE_TO_CONST_(PropertyType) RefToConstProperty; 2006e35fdd936d133bf8a48de140a3c666897588a05shiqian 2007e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyMatcher(PropertyType (Class::*property)() const, 2008e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty>& matcher) 2009e35fdd936d133bf8a48de140a3c666897588a05shiqian : property_(property), matcher_(matcher) {} 2010e35fdd936d133bf8a48de140a3c666897588a05shiqian 2011e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 2012676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given property "; 2013e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 2014e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2015e35fdd936d133bf8a48de140a3c666897588a05shiqian 2016e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 2017676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is an object whose given property "; 2018e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 2019e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2020e35fdd936d133bf8a48de140a3c666897588a05shiqian 2021db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan template <typename T> 2022db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplain(const T&value, MatchResultListener* listener) const { 2023db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl( 2024db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan typename ::testing::internal:: 202502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan is_pointer<GTEST_REMOVE_CONST_(T)>::type(), 2026db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan value, listener); 2027db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan } 2028db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan 2029db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan private: 2030db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan // The first argument of MatchAndExplainImpl() is needed to help 203118490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // Symbian's C++ compiler choose which overload to use. Its type is 203218490653e80d484b4650d8799184fd1e021efc7bzhanyong.wan // true_type iff the Property() matcher is used to match a pointer. 2033db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(false_type /* is_not_pointer */, const Class& obj, 2034db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 2035676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose given property is "; 2036676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // Cannot pass the return value (for example, int) to MatchPrintAndExplain, 2037676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // which takes a non-const reference as argument. 2038676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan RefToConstProperty result = (obj.*property_)(); 2039676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(result, matcher_, listener); 2040e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2041e35fdd936d133bf8a48de140a3c666897588a05shiqian 2042db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan bool MatchAndExplainImpl(true_type /* is_pointer */, const Class* p, 2043db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan MatchResultListener* listener) const { 2044821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (p == NULL) 2045821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2046821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 2047676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which points to an object "; 2048821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Since *p has a property method, it must be a class/struct/union 2049821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // type and thus cannot be a pointer. Therefore we pass 2050821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // false_type() as the first argument. 2051db22c227826b82e1ad05d6c47facfef73c99e057zhanyong.wan return MatchAndExplainImpl(false_type(), *p, listener); 2052e35fdd936d133bf8a48de140a3c666897588a05shiqian } 205332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 2054e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property_)() const; 2055e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty> matcher_; 205632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 205732de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PropertyMatcher); 2058e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 2059e35fdd936d133bf8a48de140a3c666897588a05shiqian 2060e35fdd936d133bf8a48de140a3c666897588a05shiqian// Type traits specifying various features of different functors for ResultOf. 2061e35fdd936d133bf8a48de140a3c666897588a05shiqian// The default template specifies features for functor objects. 2062e35fdd936d133bf8a48de140a3c666897588a05shiqian// Functor classes have to typedef argument_type and result_type 2063e35fdd936d133bf8a48de140a3c666897588a05shiqian// to be compatible with ResultOf. 2064e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Functor> 2065e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits { 2066e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename Functor::result_type ResultType; 2067e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef Functor StorageType; 2068e35fdd936d133bf8a48de140a3c666897588a05shiqian 206932de5f53763125925e078498250f7e73a88de9edzhanyong.wan static void CheckIsValid(Functor /* functor */) {} 2070e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 2071e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResultType Invoke(Functor f, T arg) { return f(arg); } 2072e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 2073e35fdd936d133bf8a48de140a3c666897588a05shiqian 2074e35fdd936d133bf8a48de140a3c666897588a05shiqian// Specialization for function pointers. 2075e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename ArgType, typename ResType> 2076e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits<ResType(*)(ArgType)> { 2077e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType ResultType; 2078e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType(*StorageType)(ArgType); 2079e35fdd936d133bf8a48de140a3c666897588a05shiqian 2080e35fdd936d133bf8a48de140a3c666897588a05shiqian static void CheckIsValid(ResType(*f)(ArgType)) { 2081f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan GTEST_CHECK_(f != NULL) 2082e35fdd936d133bf8a48de140a3c666897588a05shiqian << "NULL function pointer is passed into ResultOf()."; 2083e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2084e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 2085e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResType Invoke(ResType(*f)(ArgType), T arg) { 2086e35fdd936d133bf8a48de140a3c666897588a05shiqian return (*f)(arg); 2087e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2088e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 2089e35fdd936d133bf8a48de140a3c666897588a05shiqian 2090e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the ResultOf() matcher for matching a return value of a 2091e35fdd936d133bf8a48de140a3c666897588a05shiqian// unary function of an object. 2092e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable> 2093e35fdd936d133bf8a48de140a3c666897588a05shiqianclass ResultOfMatcher { 2094e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 2095e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::ResultType ResultType; 2096e35fdd936d133bf8a48de140a3c666897588a05shiqian 2097e35fdd936d133bf8a48de140a3c666897588a05shiqian ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher) 2098e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) { 2099e35fdd936d133bf8a48de140a3c666897588a05shiqian CallableTraits<Callable>::CheckIsValid(callable_); 2100e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2101e35fdd936d133bf8a48de140a3c666897588a05shiqian 2102e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 2103e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 2104e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(callable_, matcher_)); 2105e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2106e35fdd936d133bf8a48de140a3c666897588a05shiqian 2107e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 2108e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::StorageType CallableStorageType; 2109e35fdd936d133bf8a48de140a3c666897588a05shiqian 2110e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 2111e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 2112e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 2113e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(CallableStorageType callable, const Matcher<ResultType>& matcher) 2114e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) {} 2115e35fdd936d133bf8a48de140a3c666897588a05shiqian 2116e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 2117676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is mapped by the given callable to a value that "; 2118e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 2119e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2120e35fdd936d133bf8a48de140a3c666897588a05shiqian 2121e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 2122676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *os << "is mapped by the given callable to a value that "; 2123e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 2124e35fdd936d133bf8a48de140a3c666897588a05shiqian } 2125e35fdd936d133bf8a48de140a3c666897588a05shiqian 2126821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(T obj, MatchResultListener* listener) const { 2127676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "which is mapped by the given callable to "; 2128676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // Cannot pass the return value (for example, int) to 2129676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // MatchPrintAndExplain, which takes a non-const reference as argument. 2130676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan ResultType result = 2131676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan CallableTraits<Callable>::template Invoke<T>(callable_, obj); 2132676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return MatchPrintAndExplain(result, matcher_, listener); 2133e35fdd936d133bf8a48de140a3c666897588a05shiqian } 213432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 2135e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 2136e35fdd936d133bf8a48de140a3c666897588a05shiqian // Functors often define operator() as non-const method even though 2137e35fdd936d133bf8a48de140a3c666897588a05shiqian // they are actualy stateless. But we need to use them even when 2138e35fdd936d133bf8a48de140a3c666897588a05shiqian // 'this' is a const pointer. It's the user's responsibility not to 2139e35fdd936d133bf8a48de140a3c666897588a05shiqian // use stateful callables with ResultOf(), which does't guarantee 2140e35fdd936d133bf8a48de140a3c666897588a05shiqian // how many times the callable will be invoked. 2141e35fdd936d133bf8a48de140a3c666897588a05shiqian mutable CallableStorageType callable_; 2142e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 214332de5f53763125925e078498250f7e73a88de9edzhanyong.wan 214432de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 2145e35fdd936d133bf8a48de140a3c666897588a05shiqian }; // class Impl 2146e35fdd936d133bf8a48de140a3c666897588a05shiqian 2147e35fdd936d133bf8a48de140a3c666897588a05shiqian const CallableStorageType callable_; 2148e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 214932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 215032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ResultOfMatcher); 2151e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 2152e35fdd936d133bf8a48de140a3c666897588a05shiqian 2153a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// Implements a matcher that checks the size of an STL-style container. 2154a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wantemplate <typename SizeMatcher> 2155a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wanclass SizeIsMatcher { 2156a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan public: 2157a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan explicit SizeIsMatcher(const SizeMatcher& size_matcher) 2158a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan : size_matcher_(size_matcher) { 2159a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan } 2160a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2161a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan template <typename Container> 2162a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan operator Matcher<Container>() const { 2163a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan return MakeMatcher(new Impl<Container>(size_matcher_)); 2164a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan } 2165a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2166a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan template <typename Container> 2167a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan class Impl : public MatcherInterface<Container> { 2168a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan public: 2169a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan typedef internal::StlContainerView< 2170a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan GTEST_REMOVE_REFERENCE_AND_CONST_(Container)> ContainerView; 2171a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan typedef typename ContainerView::type::size_type SizeType; 2172a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan explicit Impl(const SizeMatcher& size_matcher) 2173a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan : size_matcher_(MatcherCast<SizeType>(size_matcher)) {} 2174a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2175a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2176a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan *os << "size "; 2177a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan size_matcher_.DescribeTo(os); 2178a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan } 2179a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2180a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan *os << "size "; 2181a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan size_matcher_.DescribeNegationTo(os); 2182a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan } 2183a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2184a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan virtual bool MatchAndExplain(Container container, 2185a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan MatchResultListener* listener) const { 2186a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan SizeType size = container.size(); 2187a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan StringMatchResultListener size_listener; 2188a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan const bool result = size_matcher_.MatchAndExplain(size, &size_listener); 2189a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan *listener 2190a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan << "whose size " << size << (result ? " matches" : " doesn't match"); 2191a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan PrintIfNotEmpty(size_listener.str(), listener->stream()); 2192a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan return result; 2193a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan } 2194a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2195a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan private: 2196a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan const Matcher<SizeType> size_matcher_; 2197a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 2198a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan }; 2199a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 2200a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan private: 2201a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan const SizeMatcher size_matcher_; 2202a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan GTEST_DISALLOW_ASSIGN_(SizeIsMatcher); 2203a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan}; 2204a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 22056a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Implements an equality matcher for any STL-style container whose elements 22066a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// support ==. This matcher is like Eq(), but its failure explanations provide 22076a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// more detailed information that is useful when the container is used as a set. 22086a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// The failure message reports elements that are in one of the operands but not 22096a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// the other. The failure messages do not report duplicate or out-of-order 22106a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// elements in the containers (which don't properly matter to sets, but can 22116a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// occur if the containers are vectors or lists, for example). 22126a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// 22136a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Uses the container's const_iterator, value_type, operator ==, 22146a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// begin(), and end(). 22156a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wantemplate <typename Container> 22166a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wanclass ContainerEqMatcher { 22176a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan public: 2218b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef internal::StlContainerView<Container> View; 2219b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::type StlContainer; 2220b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::const_reference StlContainerReference; 2221b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2222b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // We make a copy of rhs in case the elements in it are modified 2223b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // after this matcher is created. 2224b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan explicit ContainerEqMatcher(const Container& rhs) : rhs_(View::Copy(rhs)) { 2225b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // Makes sure the user doesn't instantiate this class template 2226b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // with a const or reference type. 2227ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan (void)testing::StaticAssertTypeEq<Container, 2228ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_REMOVE_REFERENCE_AND_CONST_(Container)>(); 2229b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2230b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 22316a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan void DescribeTo(::std::ostream* os) const { 22326a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan *os << "equals "; 2233e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(rhs_, os); 22346a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22356a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan void DescribeNegationTo(::std::ostream* os) const { 22366a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan *os << "does not equal "; 2237e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(rhs_, os); 22386a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22396a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 2240b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename LhsContainer> 2241e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool MatchAndExplain(const LhsContainer& lhs, 2242e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan MatchResultListener* listener) const { 224302f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan // GTEST_REMOVE_CONST_() is needed to work around an MSVC 8.0 bug 2244b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // that causes LhsContainer to be a const type sometimes. 224502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef internal::StlContainerView<GTEST_REMOVE_CONST_(LhsContainer)> 2246b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan LhsView; 2247b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename LhsView::type LhsStlContainer; 2248b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); 2249e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (lhs_stl_container == rhs_) 2250e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan return true; 2251b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2252e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan ::std::ostream* const os = listener->stream(); 2253e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (os != NULL) { 2254b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // Something is different. Check for extra values first. 2255e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool printed_header = false; 2256e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan for (typename LhsStlContainer::const_iterator it = 2257e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.begin(); 2258e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan it != lhs_stl_container.end(); ++it) { 2259e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (internal::ArrayAwareFind(rhs_.begin(), rhs_.end(), *it) == 2260e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan rhs_.end()) { 2261e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (printed_header) { 2262e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan *os << ", "; 2263e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } else { 2264b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "which has these unexpected elements: "; 2265e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan printed_header = true; 2266e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } 2267e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(*it, os); 22686a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22696a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22706a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 2271b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan // Now check for missing values. 2272e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan bool printed_header2 = false; 2273e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan for (typename StlContainer::const_iterator it = rhs_.begin(); 2274e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan it != rhs_.end(); ++it) { 2275e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (internal::ArrayAwareFind( 2276e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.begin(), lhs_stl_container.end(), *it) == 2277e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan lhs_stl_container.end()) { 2278e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan if (printed_header2) { 2279e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan *os << ", "; 2280e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } else { 2281b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << (printed_header ? ",\nand" : "which") 2282b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan << " doesn't have these expected elements: "; 2283e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan printed_header2 = true; 2284e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan } 2285e2e8ba401d198d1a8304c652e997505609b62696vladlosev UniversalPrint(*it, os); 22866a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22876a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 22886a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 2289e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan 2290e122e457a6e890faac399c1f86d87cc8d3177ac2zhanyong.wan return false; 22916a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan } 229232de5f53763125925e078498250f7e73a88de9edzhanyong.wan 22936a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan private: 2294b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan const StlContainer rhs_; 229532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 229632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainerEqMatcher); 22976a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan}; 22986a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 2299898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// A comparator functor that uses the < operator to compare two values. 2300898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wanstruct LessComparator { 2301898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan template <typename T, typename U> 2302898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan bool operator()(const T& lhs, const U& rhs) const { return lhs < rhs; } 2303898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan}; 2304898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2305898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// Implements WhenSortedBy(comparator, container_matcher). 2306898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wantemplate <typename Comparator, typename ContainerMatcher> 2307898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wanclass WhenSortedByMatcher { 2308898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan public: 2309898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan WhenSortedByMatcher(const Comparator& comparator, 2310898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const ContainerMatcher& matcher) 2311898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan : comparator_(comparator), matcher_(matcher) {} 2312898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2313898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan template <typename LhsContainer> 2314898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan operator Matcher<LhsContainer>() const { 2315898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan return MakeMatcher(new Impl<LhsContainer>(comparator_, matcher_)); 2316898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan } 2317898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2318898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan template <typename LhsContainer> 2319898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan class Impl : public MatcherInterface<LhsContainer> { 2320898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan public: 2321898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan typedef internal::StlContainerView< 2322898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)> LhsView; 2323898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan typedef typename LhsView::type LhsStlContainer; 2324898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan typedef typename LhsView::const_reference LhsStlContainerReference; 2325a9a59e06dd7cdfe52c988bf065bc156a7ed96a5czhanyong.wan // Transforms std::pair<const Key, Value> into std::pair<Key, Value> 2326a9a59e06dd7cdfe52c988bf065bc156a7ed96a5czhanyong.wan // so that we can match associative containers. 2327a9a59e06dd7cdfe52c988bf065bc156a7ed96a5czhanyong.wan typedef typename RemoveConstFromKey< 2328a9a59e06dd7cdfe52c988bf065bc156a7ed96a5czhanyong.wan typename LhsStlContainer::value_type>::type LhsValue; 2329898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2330898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan Impl(const Comparator& comparator, const ContainerMatcher& matcher) 2331898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan : comparator_(comparator), matcher_(matcher) {} 2332898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2333898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2334898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan *os << "(when sorted) "; 2335898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan matcher_.DescribeTo(os); 2336898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan } 2337898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2338898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2339898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan *os << "(when sorted) "; 2340898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan matcher_.DescribeNegationTo(os); 2341898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan } 2342898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2343898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan virtual bool MatchAndExplain(LhsContainer lhs, 2344898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan MatchResultListener* listener) const { 2345898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); 2346898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan std::vector<LhsValue> sorted_container(lhs_stl_container.begin(), 2347898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan lhs_stl_container.end()); 2348898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan std::sort(sorted_container.begin(), sorted_container.end(), comparator_); 2349898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2350898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan if (!listener->IsInterested()) { 2351898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan // If the listener is not interested, we do not need to 2352898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan // construct the inner explanation. 2353898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan return matcher_.Matches(sorted_container); 2354898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan } 2355898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2356898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan *listener << "which is "; 2357898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan UniversalPrint(sorted_container, listener->stream()); 2358898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan *listener << " when sorted"; 2359898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2360898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan StringMatchResultListener inner_listener; 2361898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const bool match = matcher_.MatchAndExplain(sorted_container, 2362898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan &inner_listener); 2363898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 2364898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan return match; 2365898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan } 2366898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2367898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan private: 2368898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const Comparator comparator_; 2369898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const Matcher<const std::vector<LhsValue>&> matcher_; 2370898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2371898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan GTEST_DISALLOW_COPY_AND_ASSIGN_(Impl); 2372898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan }; 2373898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2374898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan private: 2375898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const Comparator comparator_; 2376898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const ContainerMatcher matcher_; 2377898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2378898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan GTEST_DISALLOW_ASSIGN_(WhenSortedByMatcher); 2379898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan}; 2380898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 2381ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// Implements Pointwise(tuple_matcher, rhs_container). tuple_matcher 2382ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// must be able to be safely cast to Matcher<tuple<const T1&, const 2383ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// T2&> >, where T1 and T2 are the types of elements in the LHS 2384ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// container and the RHS container respectively. 2385ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wantemplate <typename TupleMatcher, typename RhsContainer> 2386ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanclass PointwiseMatcher { 2387ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan public: 2388ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef internal::StlContainerView<RhsContainer> RhsView; 2389ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef typename RhsView::type RhsStlContainer; 2390ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef typename RhsStlContainer::value_type RhsValue; 2391ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2392ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // Like ContainerEq, we make a copy of rhs in case the elements in 2393ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // it are modified after this matcher is created. 2394ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan PointwiseMatcher(const TupleMatcher& tuple_matcher, const RhsContainer& rhs) 2395ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) { 2396ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // Makes sure the user doesn't instantiate this class template 2397ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // with a const or reference type. 2398ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan (void)testing::StaticAssertTypeEq<RhsContainer, 2399ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)>(); 2400ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2401ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2402ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan template <typename LhsContainer> 2403ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan operator Matcher<LhsContainer>() const { 2404ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return MakeMatcher(new Impl<LhsContainer>(tuple_matcher_, rhs_)); 2405ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2406ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2407ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan template <typename LhsContainer> 2408ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan class Impl : public MatcherInterface<LhsContainer> { 2409ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan public: 2410ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef internal::StlContainerView< 2411ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)> LhsView; 2412ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef typename LhsView::type LhsStlContainer; 2413ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef typename LhsView::const_reference LhsStlContainerReference; 2414ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef typename LhsStlContainer::value_type LhsValue; 2415ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // We pass the LHS value and the RHS value to the inner matcher by 2416ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // reference, as they may be expensive to copy. We must use tuple 2417ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // instead of pair here, as a pair cannot hold references (C++ 98, 2418ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // 20.2.2 [lib.pairs]). 2419ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef std::tr1::tuple<const LhsValue&, const RhsValue&> InnerMatcherArg; 2420ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2421ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan Impl(const TupleMatcher& tuple_matcher, const RhsStlContainer& rhs) 2422ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // mono_tuple_matcher_ holds a monomorphic version of the tuple matcher. 2423ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan : mono_tuple_matcher_(SafeMatcherCast<InnerMatcherArg>(tuple_matcher)), 2424ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan rhs_(rhs) {} 2425ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2426ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2427ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << "contains " << rhs_.size() 2428ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan << " values, where each value and its corresponding value in "; 2429ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan UniversalPrinter<RhsStlContainer>::Print(rhs_, os); 2430ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << " "; 2431ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan mono_tuple_matcher_.DescribeTo(os); 2432ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2433ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2434ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << "doesn't contain exactly " << rhs_.size() 2435ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan << " values, or contains a value x at some index i" 2436ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan << " where x and the i-th value of "; 2437ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan UniversalPrint(rhs_, os); 2438ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *os << " "; 2439ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan mono_tuple_matcher_.DescribeNegationTo(os); 2440ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2441ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2442ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan virtual bool MatchAndExplain(LhsContainer lhs, 2443ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan MatchResultListener* listener) const { 2444ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs); 2445ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const size_t actual_size = lhs_stl_container.size(); 2446ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan if (actual_size != rhs_.size()) { 2447ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *listener << "which contains " << actual_size << " values"; 2448ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return false; 2449ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2450ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2451ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typename LhsStlContainer::const_iterator left = lhs_stl_container.begin(); 2452ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typename RhsStlContainer::const_iterator right = rhs_.begin(); 2453ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan for (size_t i = 0; i != actual_size; ++i, ++left, ++right) { 2454ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const InnerMatcherArg value_pair(*left, *right); 2455ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2456ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan if (listener->IsInterested()) { 2457ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan StringMatchResultListener inner_listener; 2458ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan if (!mono_tuple_matcher_.MatchAndExplain( 2459ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan value_pair, &inner_listener)) { 2460ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *listener << "where the value pair ("; 2461ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan UniversalPrint(*left, listener->stream()); 2462ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *listener << ", "; 2463ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan UniversalPrint(*right, listener->stream()); 2464ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan *listener << ") at index #" << i << " don't match"; 2465ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 2466ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return false; 2467ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2468ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } else { 2469ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan if (!mono_tuple_matcher_.Matches(value_pair)) 2470ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return false; 2471ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2472ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2473ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2474ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return true; 2475ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan } 2476ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2477ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan private: 2478ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const Matcher<InnerMatcherArg> mono_tuple_matcher_; 2479ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const RhsStlContainer rhs_; 2480ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2481ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_DISALLOW_ASSIGN_(Impl); 2482ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan }; 2483ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2484ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan private: 2485ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const TupleMatcher tuple_matcher_; 2486ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan const RhsStlContainer rhs_; 2487ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 2488ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_DISALLOW_ASSIGN_(PointwiseMatcher); 2489ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan}; 2490ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 249133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl. 2492b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename Container> 249333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass QuantifierMatcherImpl : public MatcherInterface<Container> { 2494b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan public: 2495ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; 2496b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef StlContainerView<RawContainer> View; 2497b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::type StlContainer; 2498b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename View::const_reference StlContainerReference; 2499b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan typedef typename StlContainer::value_type Element; 2500b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2501b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename InnerMatcher> 250233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit QuantifierMatcherImpl(InnerMatcher inner_matcher) 2503b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan : inner_matcher_( 250433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan testing::SafeMatcherCast<const Element&>(inner_matcher)) {} 250533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 250633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // Checks whether: 250733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // * All elements in the container match, if all_elements_should_match. 250833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // * Any element in the container matches, if !all_elements_should_match. 250933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan bool MatchAndExplainImpl(bool all_elements_should_match, 251033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan Container container, 251133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan MatchResultListener* listener) const { 251233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan StlContainerReference stl_container = View::ConstReference(container); 251333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan size_t i = 0; 251433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan for (typename StlContainer::const_iterator it = stl_container.begin(); 251533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan it != stl_container.end(); ++it, ++i) { 251633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan StringMatchResultListener inner_listener; 251733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const bool matches = inner_matcher_.MatchAndExplain(*it, &inner_listener); 251833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 251933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan if (matches != all_elements_should_match) { 252033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *listener << "whose element #" << i 252133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan << (matches ? " matches" : " doesn't match"); 252233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan PrintIfNotEmpty(inner_listener.str(), listener->stream()); 252333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return !all_elements_should_match; 252433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 252533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 252633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return all_elements_should_match; 252733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 252833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 252933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan protected: 253033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const Matcher<const Element&> inner_matcher_; 253133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 253233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(QuantifierMatcherImpl); 253333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 253433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 253533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements Contains(element_matcher) for the given argument type Container. 253633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Symmetric to EachMatcherImpl. 253733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename Container> 253833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass ContainsMatcherImpl : public QuantifierMatcherImpl<Container> { 253933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 254033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename InnerMatcher> 254133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit ContainsMatcherImpl(InnerMatcher inner_matcher) 254233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan : QuantifierMatcherImpl<Container>(inner_matcher) {} 2543b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2544b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // Describes what this matcher does. 2545b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2546b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan *os << "contains at least one element that "; 254733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 2548b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2549b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2550b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2551b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan *os << "doesn't contain any element that "; 255233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 2553b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2554b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2555821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Container container, 2556821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 255733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return this->MatchAndExplainImpl(false, container, listener); 2558b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2559b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2560b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan private: 256132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainsMatcherImpl); 2562b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan}; 2563b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 256433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements Each(element_matcher) for the given argument type Container. 256533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Symmetric to ContainsMatcherImpl. 256633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename Container> 256733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass EachMatcherImpl : public QuantifierMatcherImpl<Container> { 256833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 256933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename InnerMatcher> 257033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit EachMatcherImpl(InnerMatcher inner_matcher) 257133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan : QuantifierMatcherImpl<Container>(inner_matcher) {} 257233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 257333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan // Describes what this matcher does. 257433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 257533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *os << "only contains elements that "; 257633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeTo(os); 257733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 257833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 257933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 258033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan *os << "contains some element that "; 258133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan this->inner_matcher_.DescribeNegationTo(os); 258233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 258333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 258433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan virtual bool MatchAndExplain(Container container, 258533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan MatchResultListener* listener) const { 258633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return this->MatchAndExplainImpl(true, container, listener); 258733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 258833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 258933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan private: 259033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(EachMatcherImpl); 259133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 259233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 2593b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Implements polymorphic Contains(element_matcher). 2594b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename M> 2595b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wanclass ContainsMatcher { 2596b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan public: 2597b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan explicit ContainsMatcher(M m) : inner_matcher_(m) {} 2598b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2599b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan template <typename Container> 2600b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan operator Matcher<Container>() const { 2601b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return MakeMatcher(new ContainsMatcherImpl<Container>(inner_matcher_)); 2602b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan } 2603b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 2604b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan private: 2605b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan const M inner_matcher_; 260632de5f53763125925e078498250f7e73a88de9edzhanyong.wan 260732de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ContainsMatcher); 2608b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan}; 2609b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 261033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Implements polymorphic Each(element_matcher). 261133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename M> 261233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wanclass EachMatcher { 261333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan public: 261433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan explicit EachMatcher(M m) : inner_matcher_(m) {} 261533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 261633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan template <typename Container> 261733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan operator Matcher<Container>() const { 261833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return MakeMatcher(new EachMatcherImpl<Container>(inner_matcher_)); 261933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan } 262033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 262133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan private: 262233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan const M inner_matcher_; 262333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 262433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan GTEST_DISALLOW_ASSIGN_(EachMatcher); 262533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan}; 262633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 2627b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Implements Key(inner_matcher) for the given argument pair type. 2628b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Key(inner_matcher) matches an std::pair whose 'first' field matches 2629b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an 2630b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// std::map that contains at least one element whose key is >= 5. 2631b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename PairType> 2632b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wanclass KeyMatcherImpl : public MatcherInterface<PairType> { 2633b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan public: 2634ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType; 2635b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan typedef typename RawPairType::first_type KeyType; 2636b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2637b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan template <typename InnerMatcher> 2638b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan explicit KeyMatcherImpl(InnerMatcher inner_matcher) 2639b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan : inner_matcher_( 2640b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan testing::SafeMatcherCast<const KeyType&>(inner_matcher)) { 2641b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2642b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2643b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Returns true iff 'key_value.first' (the key) matches the inner matcher. 2644821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(PairType key_value, 2645821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 2646b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan StringMatchResultListener inner_listener; 2647b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const bool match = inner_matcher_.MatchAndExplain(key_value.first, 2648b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan &inner_listener); 2649b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan const internal::string explanation = inner_listener.str(); 2650b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan if (explanation != "") { 2651b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose first field is a value " << explanation; 2652b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan } 2653b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan return match; 2654b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2655b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2656b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Describes what this matcher does. 2657b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2658b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan *os << "has a key that "; 2659b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan inner_matcher_.DescribeTo(os); 2660b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2661b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2662b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan // Describes what the negation of this matcher does. 2663b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2664b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan *os << "doesn't have a key that "; 2665b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan inner_matcher_.DescribeTo(os); 2666b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2667b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2668b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan private: 2669b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan const Matcher<const KeyType&> inner_matcher_; 267032de5f53763125925e078498250f7e73a88de9edzhanyong.wan 267132de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(KeyMatcherImpl); 2672b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan}; 2673b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2674b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Implements polymorphic Key(matcher_for_key). 2675b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename M> 2676b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wanclass KeyMatcher { 2677b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan public: 2678b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan explicit KeyMatcher(M m) : matcher_for_key_(m) {} 2679b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2680b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan template <typename PairType> 2681b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan operator Matcher<PairType>() const { 2682b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan return MakeMatcher(new KeyMatcherImpl<PairType>(matcher_for_key_)); 2683b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan } 2684b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2685b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan private: 2686b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan const M matcher_for_key_; 268732de5f53763125925e078498250f7e73a88de9edzhanyong.wan 268832de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(KeyMatcher); 2689b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan}; 2690b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 2691f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Implements Pair(first_matcher, second_matcher) for the given argument pair 2692f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// type with its two matchers. See Pair() function below. 2693f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename PairType> 2694f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanclass PairMatcherImpl : public MatcherInterface<PairType> { 2695f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan public: 2696ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType; 2697f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan typedef typename RawPairType::first_type FirstType; 2698f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan typedef typename RawPairType::second_type SecondType; 2699f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2700f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan template <typename FirstMatcher, typename SecondMatcher> 2701f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher) 2702f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan : first_matcher_( 2703f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan testing::SafeMatcherCast<const FirstType&>(first_matcher)), 2704f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_( 2705f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan testing::SafeMatcherCast<const SecondType&>(second_matcher)) { 2706f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2707f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2708f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan // Describes what this matcher does. 2709f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 2710f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << "has a first field that "; 2711f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_.DescribeTo(os); 2712f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << ", and has a second field that "; 2713f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_.DescribeTo(os); 2714f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2715f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2716f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan // Describes what the negation of this matcher does. 2717f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 2718f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << "has a first field that "; 2719f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_.DescribeNegationTo(os); 2720f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan *os << ", or has a second field that "; 2721f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan second_matcher_.DescribeNegationTo(os); 2722f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2723f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2724821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Returns true iff 'a_pair.first' matches first_matcher and 'a_pair.second' 2725821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // matches second_matcher. 2726821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(PairType a_pair, 2727821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 2728676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!listener->IsInterested()) { 2729676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // If the listener is not interested, we don't need to construct the 2730676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan // explanation. 2731676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan return first_matcher_.Matches(a_pair.first) && 2732676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan second_matcher_.Matches(a_pair.second); 2733821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 2734676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener first_inner_listener; 2735676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!first_matcher_.MatchAndExplain(a_pair.first, 2736676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan &first_inner_listener)) { 2737676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose first field does not match"; 2738b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(first_inner_listener.str(), listener->stream()); 2739821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2740f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2741676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan StringMatchResultListener second_inner_listener; 2742676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (!second_matcher_.MatchAndExplain(a_pair.second, 2743676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan &second_inner_listener)) { 2744676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose second field does not match"; 2745b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(second_inner_listener.str(), listener->stream()); 2746821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2747f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2748676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan ExplainSuccess(first_inner_listener.str(), second_inner_listener.str(), 2749676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan listener); 2750821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 2751f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2752f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2753f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan private: 2754676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan void ExplainSuccess(const internal::string& first_explanation, 2755676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan const internal::string& second_explanation, 2756676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan MatchResultListener* listener) const { 2757676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "whose both fields match"; 2758676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (first_explanation != "") { 2759676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << ", where the first field is a value " << first_explanation; 2760676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2761676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (second_explanation != "") { 2762676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << ", "; 2763676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan if (first_explanation != "") { 2764676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "and "; 2765676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } else { 2766676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "where "; 2767676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2768676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan *listener << "the second field is a value " << second_explanation; 2769676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2770676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan } 2771676e8cc6092853c9dbf1eeab2402be0069d8fb7ezhanyong.wan 2772f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const Matcher<const FirstType&> first_matcher_; 2773f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const Matcher<const SecondType&> second_matcher_; 277432de5f53763125925e078498250f7e73a88de9edzhanyong.wan 277532de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PairMatcherImpl); 2776f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan}; 2777f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2778f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Implements polymorphic Pair(first_matcher, second_matcher). 2779f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename FirstMatcher, typename SecondMatcher> 2780f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanclass PairMatcher { 2781f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan public: 2782f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher) 2783f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan : first_matcher_(first_matcher), second_matcher_(second_matcher) {} 2784f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2785f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan template <typename PairType> 2786f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan operator Matcher<PairType> () const { 2787f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan return MakeMatcher( 2788f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan new PairMatcherImpl<PairType>( 2789f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher_, second_matcher_)); 2790f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan } 2791f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 2792f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan private: 2793f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const FirstMatcher first_matcher_; 2794f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan const SecondMatcher second_matcher_; 279532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 279632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(PairMatcher); 2797f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan}; 2798f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 27991afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAre() and ElementsAreArray(). 28001afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wantemplate <typename Container> 28011afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreMatcherImpl : public MatcherInterface<Container> { 28021afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 2803ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; 28041afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef internal::StlContainerView<RawContainer> View; 28051afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename View::type StlContainer; 28061afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename View::const_reference StlContainerReference; 28071afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename StlContainer::value_type Element; 28081afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 28091afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Constructs the matcher from a sequence of element values or 28101afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // element matchers. 28111afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename InputIter> 281238513a8bb154f0b6d0a4088814fe92552696d465jgm ElementsAreMatcherImpl(InputIter first, InputIter last) { 281338513a8bb154f0b6d0a4088814fe92552696d465jgm while (first != last) { 281438513a8bb154f0b6d0a4088814fe92552696d465jgm matchers_.push_back(MatcherCast<const Element&>(*first++)); 28151afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28161afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28171afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 28181afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Describes what this matcher does. 28191afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan virtual void DescribeTo(::std::ostream* os) const { 28201afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (count() == 0) { 28211afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "is empty"; 28221afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } else if (count() == 1) { 28231afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "has 1 element that "; 28241afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[0].DescribeTo(os); 28251afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } else { 28261afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << "has " << Elements(count()) << " where\n"; 28271afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2828b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "element #" << i << " "; 28291afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[i].DescribeTo(os); 28301afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (i + 1 < count()) { 28311afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << ",\n"; 28321afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28331afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28341afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28351afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28361afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 28371afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan // Describes what the negation of this matcher does. 28381afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan virtual void DescribeNegationTo(::std::ostream* os) const { 28391afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (count() == 0) { 2840b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "isn't empty"; 28411afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return; 28421afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28431afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2844b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "doesn't have " << Elements(count()) << ", or\n"; 28451afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2846b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *os << "element #" << i << " "; 28471afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan matchers_[i].DescribeNegationTo(os); 28481afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan if (i + 1 < count()) { 28491afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan *os << ", or\n"; 28501afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28511afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28521afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28531afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2854821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan virtual bool MatchAndExplain(Container container, 2855821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan MatchResultListener* listener) const { 28561afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan StlContainerReference stl_container = View::ConstReference(container); 2857821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const size_t actual_count = stl_container.size(); 2858821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (actual_count != count()) { 2859821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // The element count doesn't match. If the container is empty, 2860821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // there's no need to explain anything as Google Mock already 2861821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // prints the empty container. Otherwise we just need to show 2862821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // how many elements there actually are. 2863821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (actual_count != 0) { 2864b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "which has " << Elements(actual_count); 28651afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2866821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2867821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 28681afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2869821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan typename StlContainer::const_iterator it = stl_container.begin(); 2870821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // explanations[i] is the explanation of the element at index i. 2871821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan std::vector<internal::string> explanations(count()); 2872821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan for (size_t i = 0; i != count(); ++it, ++i) { 2873821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan StringMatchResultListener s; 2874821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (matchers_[i].MatchAndExplain(*it, &s)) { 2875821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan explanations[i] = s.str(); 2876821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } else { 2877821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // The container has the right size but the i-th element 2878821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // doesn't match its expectation. 2879b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose element #" << i << " doesn't match"; 2880b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan PrintIfNotEmpty(s.str(), listener->stream()); 2881821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return false; 2882821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 2883821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan } 28841afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2885821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // Every element matches its expectation. We need to explain why 2886821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan // (the obvious ones can be skipped). 2887821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan bool reason_printed = false; 2888821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan for (size_t i = 0; i != count(); ++i) { 2889821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan const internal::string& s = explanations[i]; 2890821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (!s.empty()) { 2891821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan if (reason_printed) { 2892b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << ",\nand "; 28931afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2894b1c7f93c52d7fbf484f34d01a65cfaec03786564zhanyong.wan *listener << "whose element #" << i << " matches, " << s; 2895821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan reason_printed = true; 28961afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 28971afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 2898821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan 2899821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return true; 29001afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 29011afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29021afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan private: 29031afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan static Message Elements(size_t count) { 29041afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan return Message() << count << (count == 1 ? " element" : " elements"); 29051afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 29061afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29071afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan size_t count() const { return matchers_.size(); } 29081afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan std::vector<Matcher<const Element&> > matchers_; 290932de5f53763125925e078498250f7e73a88de9edzhanyong.wan 291032de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ElementsAreMatcherImpl); 29111afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 29121afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29131afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAre() of 0 arguments. 29141afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreMatcher0 { 29151afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 29161afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan ElementsAreMatcher0() {} 29171afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29181afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename Container> 29191afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan operator Matcher<Container>() const { 2920ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer; 29211afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan typedef typename internal::StlContainerView<RawContainer>::type::value_type 29221afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan Element; 29231afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29241afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan const Matcher<const Element&>* const matchers = NULL; 292538513a8bb154f0b6d0a4088814fe92552696d465jgm return MakeMatcher(new ElementsAreMatcherImpl<Container>(matchers, 292638513a8bb154f0b6d0a4088814fe92552696d465jgm matchers)); 29271afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 29281afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 29291afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29301afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan// Implements ElementsAreArray(). 29311afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wantemplate <typename T> 29321afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wanclass ElementsAreArrayMatcher { 29331afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan public: 293438513a8bb154f0b6d0a4088814fe92552696d465jgm template <typename Iter> 293538513a8bb154f0b6d0a4088814fe92552696d465jgm ElementsAreArrayMatcher(Iter first, Iter last) : matchers_(first, last) {} 29361afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29371afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan template <typename Container> 29381afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan operator Matcher<Container>() const { 293938513a8bb154f0b6d0a4088814fe92552696d465jgm return MakeMatcher(new ElementsAreMatcherImpl<Container>( 294038513a8bb154f0b6d0a4088814fe92552696d465jgm matchers_.begin(), matchers_.end())); 29411afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan } 29421afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 29431afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan private: 294438513a8bb154f0b6d0a4088814fe92552696d465jgm const std::vector<T> matchers_; 294532de5f53763125925e078498250f7e73a88de9edzhanyong.wan 294632de5f53763125925e078498250f7e73a88de9edzhanyong.wan GTEST_DISALLOW_ASSIGN_(ElementsAreArrayMatcher); 29471afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan}; 29481afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2949b4140808f98ff09c43ca1ddaa8ff13bc47cd0089zhanyong.wan// Returns the description for a matcher defined using the MATCHER*() 2950b4140808f98ff09c43ca1ddaa8ff13bc47cd0089zhanyong.wan// macro where the user-supplied description string is "", if 2951b4140808f98ff09c43ca1ddaa8ff13bc47cd0089zhanyong.wan// 'negation' is false; otherwise returns the description of the 2952b4140808f98ff09c43ca1ddaa8ff13bc47cd0089zhanyong.wan// negation of the matcher. 'param_values' contains a list of strings 2953b4140808f98ff09c43ca1ddaa8ff13bc47cd0089zhanyong.wan// that are the print-out of the matcher's parameters. 2954587c1b37c2f0b6d430fb13ce09326db0135b557cvladlosevGTEST_API_ string FormatMatcherDescription(bool negation, 2955587c1b37c2f0b6d430fb13ce09326db0135b557cvladlosev const char* matcher_name, 2956587c1b37c2f0b6d430fb13ce09326db0135b557cvladlosev const Strings& param_values); 29571afe1c7971e649ae8b85a39fc1ab6ac595e1dd58zhanyong.wan 2958e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 2959e35fdd936d133bf8a48de140a3c666897588a05shiqian 2960e35fdd936d133bf8a48de140a3c666897588a05shiqian// _ is a matcher that matches anything of any type. 2961e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2962e35fdd936d133bf8a48de140a3c666897588a05shiqian// This definition is fine as: 2963e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2964e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. The C++ standard permits using the name _ in a namespace that 2965e35fdd936d133bf8a48de140a3c666897588a05shiqian// is not the global namespace or ::std. 2966e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. The AnythingMatcher class has no data member or constructor, 2967e35fdd936d133bf8a48de140a3c666897588a05shiqian// so it's OK to create global variables of this type. 2968e35fdd936d133bf8a48de140a3c666897588a05shiqian// 3. c-style has approved of using _ in this case. 2969e35fdd936d133bf8a48de140a3c666897588a05shiqianconst internal::AnythingMatcher _ = {}; 2970e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 2971e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2972e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); } 2973e35fdd936d133bf8a48de140a3c666897588a05shiqian 2974e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 2975e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2976e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> An() { return A<T>(); } 2977e35fdd936d133bf8a48de140a3c666897588a05shiqian 2978e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything equal to x. 2979e35fdd936d133bf8a48de140a3c666897588a05shiqian// Note: if the parameter of Eq() were declared as const T&, Eq("foo") 2980e35fdd936d133bf8a48de140a3c666897588a05shiqian// wouldn't compile. 2981e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2982e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); } 2983e35fdd936d133bf8a48de140a3c666897588a05shiqian 2984e35fdd936d133bf8a48de140a3c666897588a05shiqian// Constructs a Matcher<T> from a 'value' of type T. The constructed 2985e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher matches any value that's equal to 'value'. 2986e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 2987e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T>::Matcher(T value) { *this = Eq(value); } 2988e35fdd936d133bf8a48de140a3c666897588a05shiqian 2989e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a monomorphic matcher that matches anything with type Lhs 2990e35fdd936d133bf8a48de140a3c666897588a05shiqian// and equal to rhs. A user may need to use this instead of Eq(...) 2991e35fdd936d133bf8a48de140a3c666897588a05shiqian// in order to resolve an overloading ambiguity. 2992e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2993e35fdd936d133bf8a48de140a3c666897588a05shiqian// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x)) 2994e35fdd936d133bf8a48de140a3c666897588a05shiqian// or Matcher<T>(x), but more readable than the latter. 2995e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2996e35fdd936d133bf8a48de140a3c666897588a05shiqian// We could define similar monomorphic matchers for other comparison 2997e35fdd936d133bf8a48de140a3c666897588a05shiqian// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do 2998e35fdd936d133bf8a48de140a3c666897588a05shiqian// it yet as those are used much less than Eq() in practice. A user 2999e35fdd936d133bf8a48de140a3c666897588a05shiqian// can always write Matcher<T>(Lt(5)) to be explicit about the type, 3000e35fdd936d133bf8a48de140a3c666897588a05shiqian// for example. 3001e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Lhs, typename Rhs> 3002e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); } 3003e35fdd936d133bf8a48de140a3c666897588a05shiqian 3004e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything >= x. 3005e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 3006e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GeMatcher<Rhs> Ge(Rhs x) { 3007e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GeMatcher<Rhs>(x); 3008e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3009e35fdd936d133bf8a48de140a3c666897588a05shiqian 3010e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything > x. 3011e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 3012e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GtMatcher<Rhs> Gt(Rhs x) { 3013e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GtMatcher<Rhs>(x); 3014e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3015e35fdd936d133bf8a48de140a3c666897588a05shiqian 3016e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything <= x. 3017e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 3018e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LeMatcher<Rhs> Le(Rhs x) { 3019e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LeMatcher<Rhs>(x); 3020e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3021e35fdd936d133bf8a48de140a3c666897588a05shiqian 3022e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything < x. 3023e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 3024e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LtMatcher<Rhs> Lt(Rhs x) { 3025e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LtMatcher<Rhs>(x); 3026e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3027e35fdd936d133bf8a48de140a3c666897588a05shiqian 3028e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything != x. 3029e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 3030e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NeMatcher<Rhs> Ne(Rhs x) { 3031e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NeMatcher<Rhs>(x); 3032e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3033e35fdd936d133bf8a48de140a3c666897588a05shiqian 30342d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan// Creates a polymorphic matcher that matches any NULL pointer. 30352d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.waninline PolymorphicMatcher<internal::IsNullMatcher > IsNull() { 30362d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan return MakePolymorphicMatcher(internal::IsNullMatcher()); 30372d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan} 30382d970ee3bad530703ff24bc3a011390b45cdd293zhanyong.wan 3039e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any non-NULL pointer. 3040e35fdd936d133bf8a48de140a3c666897588a05shiqian// This is convenient as Not(NULL) doesn't compile (the compiler 3041e35fdd936d133bf8a48de140a3c666897588a05shiqian// thinks that that expression is comparing a pointer with an integer). 3042e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::NotNullMatcher > NotNull() { 3043e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::NotNullMatcher()); 3044e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3045e35fdd936d133bf8a48de140a3c666897588a05shiqian 3046e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any argument that 3047e35fdd936d133bf8a48de140a3c666897588a05shiqian// references variable x. 3048e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 3049e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::RefMatcher<T&> Ref(T& x) { // NOLINT 3050e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::RefMatcher<T&>(x); 3051e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3052e35fdd936d133bf8a48de140a3c666897588a05shiqian 3053e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 3054e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 3055e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> DoubleEq(double rhs) { 3056e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, false); 3057e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3058e35fdd936d133bf8a48de140a3c666897588a05shiqian 3059e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 3060e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 3061e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) { 3062e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, true); 3063e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3064e35fdd936d133bf8a48de140a3c666897588a05shiqian 3065616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Creates a matcher that matches any double argument approximately equal to 3066616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs, up to the specified max absolute error bound, where two NANs are 3067616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// considered unequal. The max absolute error bound must be non-negative. 3068616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::FloatingEqMatcher<double> DoubleNear( 3069616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan double rhs, double max_abs_error) { 3070616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::FloatingEqMatcher<double>(rhs, false, max_abs_error); 3071616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3072616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3073616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Creates a matcher that matches any double argument approximately equal to 3074616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs, up to the specified max absolute error bound, including NaN values when 3075616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs is NaN. The max absolute error bound must be non-negative. 3076616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::FloatingEqMatcher<double> NanSensitiveDoubleNear( 3077616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan double rhs, double max_abs_error) { 3078616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::FloatingEqMatcher<double>(rhs, true, max_abs_error); 3079616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3080616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3081e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any float argument approximately 3082e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 3083e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> FloatEq(float rhs) { 3084e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, false); 3085e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3086e35fdd936d133bf8a48de140a3c666897588a05shiqian 3087616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Creates a matcher that matches any float argument approximately 3088e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 3089e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) { 3090e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, true); 3091e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3092e35fdd936d133bf8a48de140a3c666897588a05shiqian 3093616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Creates a matcher that matches any float argument approximately equal to 3094616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs, up to the specified max absolute error bound, where two NANs are 3095616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// considered unequal. The max absolute error bound must be non-negative. 3096616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::FloatingEqMatcher<float> FloatNear( 3097616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan float rhs, float max_abs_error) { 3098616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::FloatingEqMatcher<float>(rhs, false, max_abs_error); 3099616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3100616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3101616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Creates a matcher that matches any float argument approximately equal to 3102616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs, up to the specified max absolute error bound, including NaN values when 3103616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// rhs is NaN. The max absolute error bound must be non-negative. 3104616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::FloatingEqMatcher<float> NanSensitiveFloatNear( 3105616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan float rhs, float max_abs_error) { 3106616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::FloatingEqMatcher<float>(rhs, true, max_abs_error); 3107616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3108616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3109e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches a pointer (raw or smart) that points 3110e35fdd936d133bf8a48de140a3c666897588a05shiqian// to a value that matches inner_matcher. 3111e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 3112e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::PointeeMatcher<InnerMatcher> Pointee( 3113e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher& inner_matcher) { 3114e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::PointeeMatcher<InnerMatcher>(inner_matcher); 3115e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3116e35fdd936d133bf8a48de140a3c666897588a05shiqian 3117e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given field matches 3118e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'matcher'. For example, 3119e35fdd936d133bf8a48de140a3c666897588a05shiqian// Field(&Foo::number, Ge(5)) 3120e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.number >= 5. 3121e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType, typename FieldMatcher> 3122e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 3123e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType> > Field( 3124e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldType Class::*field, const FieldMatcher& matcher) { 3125e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 3126e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType>( 3127e35fdd936d133bf8a48de140a3c666897588a05shiqian field, MatcherCast<const FieldType&>(matcher))); 3128e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 3129e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 3130e35fdd936d133bf8a48de140a3c666897588a05shiqian // Field(&Foo::bar, m) 3131e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar is an int32 and m is a matcher for int64. 3132e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3133e35fdd936d133bf8a48de140a3c666897588a05shiqian 3134e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given property 3135e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches 'matcher'. For example, 3136e35fdd936d133bf8a48de140a3c666897588a05shiqian// Property(&Foo::str, StartsWith("hi")) 3137e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.str() starts with "hi". 3138e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType, typename PropertyMatcher> 3139e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 3140e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType> > Property( 3141e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property)() const, const PropertyMatcher& matcher) { 3142e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 3143e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType>( 3144e35fdd936d133bf8a48de140a3c666897588a05shiqian property, 314502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan MatcherCast<GTEST_REFERENCE_TO_CONST_(PropertyType)>(matcher))); 3146e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 3147e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 3148e35fdd936d133bf8a48de140a3c666897588a05shiqian // Property(&Foo::bar, m) 3149e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar() returns an int32 and m is a matcher for int64. 3150e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3151e35fdd936d133bf8a48de140a3c666897588a05shiqian 3152e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object iff the result of applying 3153e35fdd936d133bf8a48de140a3c666897588a05shiqian// a callable to x matches 'matcher'. 3154e35fdd936d133bf8a48de140a3c666897588a05shiqian// For example, 3155e35fdd936d133bf8a48de140a3c666897588a05shiqian// ResultOf(f, StartsWith("hi")) 3156e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff f(x) starts with "hi". 3157e35fdd936d133bf8a48de140a3c666897588a05shiqian// callable parameter can be a function, function pointer, or a functor. 3158e35fdd936d133bf8a48de140a3c666897588a05shiqian// Callable has to satisfy the following conditions: 3159e35fdd936d133bf8a48de140a3c666897588a05shiqian// * It is required to keep no state affecting the results of 3160e35fdd936d133bf8a48de140a3c666897588a05shiqian// the calls on it and make no assumptions about how many calls 3161e35fdd936d133bf8a48de140a3c666897588a05shiqian// will be made. Any state it keeps must be protected from the 3162e35fdd936d133bf8a48de140a3c666897588a05shiqian// concurrent access. 3163e35fdd936d133bf8a48de140a3c666897588a05shiqian// * If it is a function object, it has to define type result_type. 3164e35fdd936d133bf8a48de140a3c666897588a05shiqian// We recommend deriving your functor classes from std::unary_function. 3165e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable, typename ResultOfMatcher> 3166e35fdd936d133bf8a48de140a3c666897588a05shiqianinternal::ResultOfMatcher<Callable> ResultOf( 3167e35fdd936d133bf8a48de140a3c666897588a05shiqian Callable callable, const ResultOfMatcher& matcher) { 3168e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::ResultOfMatcher<Callable>( 3169e35fdd936d133bf8a48de140a3c666897588a05shiqian callable, 3170e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherCast<typename internal::CallableTraits<Callable>::ResultType>( 3171e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher)); 3172e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 3173e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 3174e35fdd936d133bf8a48de140a3c666897588a05shiqian // ResultOf(Function, m) 3175e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where Function() returns an int32 and m is a matcher for int64. 3176e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3177e35fdd936d133bf8a48de140a3c666897588a05shiqian 3178e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 3179e35fdd936d133bf8a48de140a3c666897588a05shiqian 3180e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 3181e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 3182e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::string& str) { 3183e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 3184e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 3185e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3186e35fdd936d133bf8a48de140a3c666897588a05shiqian 3187e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 3188e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 3189e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::string& str) { 3190e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 3191e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 3192e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3193e35fdd936d133bf8a48de140a3c666897588a05shiqian 3194e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 3195e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 3196e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::string& str) { 3197e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 3198e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 3199e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3200e35fdd936d133bf8a48de140a3c666897588a05shiqian 3201e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 3202e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 3203e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::string& str) { 3204e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 3205e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 3206e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3207e35fdd936d133bf8a48de140a3c666897588a05shiqian 3208e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any string, std::string, or C string 3209e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 3210e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> > 3211e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::string& substring) { 3212e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>( 3213e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 3214e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3215e35fdd936d133bf8a48de140a3c666897588a05shiqian 3216e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 3217e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> > 3218e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::string& prefix) { 3219e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>( 3220e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 3221e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3222e35fdd936d133bf8a48de140a3c666897588a05shiqian 3223e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 3224e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> > 3225e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::string& suffix) { 3226e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>( 3227e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 3228e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3229e35fdd936d133bf8a48de140a3c666897588a05shiqian 3230e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that fully matches regular expression 'regex'. 3231e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 3232e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 3233e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 3234e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true)); 3235e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3236e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 3237e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 3238e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatchesRegex(new internal::RE(regex)); 3239e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3240e35fdd936d133bf8a48de140a3c666897588a05shiqian 3241e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that contains regular expression 'regex'. 3242e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 3243e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 3244e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 3245e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false)); 3246e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3247e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 3248e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 3249e35fdd936d133bf8a48de140a3c666897588a05shiqian return ContainsRegex(new internal::RE(regex)); 3250e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3251e35fdd936d133bf8a48de140a3c666897588a05shiqian 3252e35fdd936d133bf8a48de140a3c666897588a05shiqian#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 3253e35fdd936d133bf8a48de140a3c666897588a05shiqian// Wide string matchers. 3254e35fdd936d133bf8a48de140a3c666897588a05shiqian 3255e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 3256e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 3257e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::wstring& str) { 3258e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 3259e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 3260e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3261e35fdd936d133bf8a48de140a3c666897588a05shiqian 3262e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 3263e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 3264e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::wstring& str) { 3265e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 3266e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 3267e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3268e35fdd936d133bf8a48de140a3c666897588a05shiqian 3269e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 3270e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 3271e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::wstring& str) { 3272e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 3273e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 3274e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3275e35fdd936d133bf8a48de140a3c666897588a05shiqian 3276e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 3277e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 3278e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::wstring& str) { 3279e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 3280e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 3281e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3282e35fdd936d133bf8a48de140a3c666897588a05shiqian 3283e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any wstring, std::wstring, or C wide string 3284e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 3285e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> > 3286e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::wstring& substring) { 3287e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>( 3288e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 3289e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3290e35fdd936d133bf8a48de140a3c666897588a05shiqian 3291e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 3292e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> > 3293e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::wstring& prefix) { 3294e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>( 3295e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 3296e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3297e35fdd936d133bf8a48de140a3c666897588a05shiqian 3298e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 3299e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> > 3300e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::wstring& suffix) { 3301e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>( 3302e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 3303e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3304e35fdd936d133bf8a48de140a3c666897588a05shiqian 3305e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 3306e35fdd936d133bf8a48de140a3c666897588a05shiqian 3307e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3308e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field == the second field. 3309e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); } 3310e35fdd936d133bf8a48de140a3c666897588a05shiqian 3311e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3312e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field >= the second field. 3313e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); } 3314e35fdd936d133bf8a48de140a3c666897588a05shiqian 3315e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3316e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field > the second field. 3317e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); } 3318e35fdd936d133bf8a48de140a3c666897588a05shiqian 3319e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3320e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field <= the second field. 3321e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Le2Matcher Le() { return internal::Le2Matcher(); } 3322e35fdd936d133bf8a48de140a3c666897588a05shiqian 3323e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3324e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field < the second field. 3325e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); } 3326e35fdd936d133bf8a48de140a3c666897588a05shiqian 3327e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 3328e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field != the second field. 3329e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); } 3330e35fdd936d133bf8a48de140a3c666897588a05shiqian 3331e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of type T that m doesn't 3332e35fdd936d133bf8a48de140a3c666897588a05shiqian// match. 3333e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 3334e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) { 3335e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NotMatcher<InnerMatcher>(m); 3336e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3337e35fdd936d133bf8a48de140a3c666897588a05shiqian 3338e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a matcher that matches anything that satisfies the given 3339e35fdd936d133bf8a48de140a3c666897588a05shiqian// predicate. The predicate can be any unary function or functor 3340e35fdd936d133bf8a48de140a3c666897588a05shiqian// whose return type can be implicitly converted to bool. 3341e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 3342e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::TrulyMatcher<Predicate> > 3343e35fdd936d133bf8a48de140a3c666897588a05shiqianTruly(Predicate pred) { 3344e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred)); 3345e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3346e35fdd936d133bf8a48de140a3c666897588a05shiqian 3347a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// Returns a matcher that matches the container size. The container must 3348a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// support both size() and size_type which all STL-like containers provide. 3349a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// Note that the parameter 'size' can be a value of type size_type as well as 3350a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// matcher. For instance: 3351a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// EXPECT_THAT(container, SizeIs(2)); // Checks container has 2 elements. 3352a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan// EXPECT_THAT(container, SizeIs(Le(2)); // Checks container has at most 2. 3353a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wantemplate <typename SizeMatcher> 3354a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.waninline internal::SizeIsMatcher<SizeMatcher> 3355a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wanSizeIs(const SizeMatcher& size_matcher) { 3356a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan return internal::SizeIsMatcher<SizeMatcher>(size_matcher); 3357a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan} 3358a31d9ce2900275c5b9aff2459664a50381c7cbb0zhanyong.wan 33596a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// Returns a matcher that matches an equal container. 33606a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// This matcher behaves like Eq(), but in the event of mismatch lists the 33616a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// values that are included in one container but not the other. (Duplicate 33626a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan// values and order differences are not explained.) 33636a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wantemplate <typename Container> 3364821133180ccdb9eb062548d964929ba3b354eb84zhanyong.waninline PolymorphicMatcher<internal::ContainerEqMatcher< // NOLINT 336502f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan GTEST_REMOVE_CONST_(Container)> > 33666a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan ContainerEq(const Container& rhs) { 3367b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // This following line is for working around a bug in MSVC 8.0, 3368b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan // which causes Container to be a const type sometimes. 336902f7106557fde1f1075dc53d65ef1f7a11851f93zhanyong.wan typedef GTEST_REMOVE_CONST_(Container) RawContainer; 3370821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan return MakePolymorphicMatcher( 3371821133180ccdb9eb062548d964929ba3b354eb84zhanyong.wan internal::ContainerEqMatcher<RawContainer>(rhs)); 3372b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan} 3373b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 3374898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// Returns a matcher that matches a container that, when sorted using 3375898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// the given comparator, matches container_matcher. 3376898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wantemplate <typename Comparator, typename ContainerMatcher> 3377898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.waninline internal::WhenSortedByMatcher<Comparator, ContainerMatcher> 3378898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wanWhenSortedBy(const Comparator& comparator, 3379898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan const ContainerMatcher& container_matcher) { 3380898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan return internal::WhenSortedByMatcher<Comparator, ContainerMatcher>( 3381898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan comparator, container_matcher); 3382898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan} 3383898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 3384898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// Returns a matcher that matches a container that, when sorted using 3385898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan// the < operator, matches container_matcher. 3386898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wantemplate <typename ContainerMatcher> 3387898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.waninline internal::WhenSortedByMatcher<internal::LessComparator, ContainerMatcher> 3388898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wanWhenSorted(const ContainerMatcher& container_matcher) { 3389898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan return 3390898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan internal::WhenSortedByMatcher<internal::LessComparator, ContainerMatcher>( 3391898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan internal::LessComparator(), container_matcher); 3392898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan} 3393898725cf47aacd45c385bb6c537c130ac8cd224czhanyong.wan 3394ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// Matches an STL-style container or a native array that contains the 3395ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// same number of elements as in rhs, where its i-th element and rhs's 3396ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// i-th element (as a pair) satisfy the given pair matcher, for all i. 3397ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// TupleMatcher must be able to be safely cast to Matcher<tuple<const 3398ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// T1&, const T2&> >, where T1 and T2 are the types of elements in the 3399ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan// LHS container and the RHS container respectively. 3400ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wantemplate <typename TupleMatcher, typename Container> 3401ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.waninline internal::PointwiseMatcher<TupleMatcher, 3402ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan GTEST_REMOVE_CONST_(Container)> 3403ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wanPointwise(const TupleMatcher& tuple_matcher, const Container& rhs) { 3404ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // This following line is for working around a bug in MSVC 8.0, 3405ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan // which causes Container to be a const type sometimes. 3406ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan typedef GTEST_REMOVE_CONST_(Container) RawContainer; 3407ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan return internal::PointwiseMatcher<TupleMatcher, RawContainer>( 3408ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan tuple_matcher, rhs); 3409ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan} 3410ab5b77c179009b787d71ff934eaf4a0db6c24814zhanyong.wan 3411b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Matches an STL-style container or a native array that contains at 3412b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// least one element matching the given value or matcher. 3413b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 3414b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Examples: 3415b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// ::std::set<int> page_ids; 3416b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_ids.insert(3); 3417b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_ids.insert(1); 3418b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Contains(1)); 3419b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Contains(Gt(2))); 3420b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(page_ids, Not(Contains(4))); 3421b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 3422b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// ::std::map<int, size_t> page_lengths; 3423b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// page_lengths[1] = 100; 34244019819dbb5369b1d638503523a04aaf7eb2a5adzhanyong.wan// EXPECT_THAT(page_lengths, 34254019819dbb5369b1d638503523a04aaf7eb2a5adzhanyong.wan// Contains(::std::pair<const int, size_t>(1, 100))); 3426b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// 3427b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// const char* user_ids[] = { "joe", "mike", "tom" }; 3428b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// EXPECT_THAT(user_ids, Contains(Eq(::std::string("tom")))); 3429b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename M> 3430b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.waninline internal::ContainsMatcher<M> Contains(M matcher) { 3431b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return internal::ContainsMatcher<M>(matcher); 34326a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan} 34336a896b5ec607a54d86bbd2efdbc0248754b042e1zhanyong.wan 343433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Matches an STL-style container or a native array that contains only 343533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// elements matching the given value or matcher. 343633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 343733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Each(m) is semantically equivalent to Not(Contains(Not(m))). Only 343833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// the messages are different. 343933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 344033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// Examples: 344133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// ::std::set<int> page_ids; 344233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// // Each(m) matches an empty container, regardless of what m is. 344333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Eq(1))); 344433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Eq(77))); 344533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 344633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_ids.insert(3); 344733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Each(Gt(0))); 344833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Not(Each(Gt(4)))); 344933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_ids.insert(1); 345033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_ids, Not(Each(Lt(2)))); 345133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 345233605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// ::std::map<int, size_t> page_lengths; 345333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[1] = 100; 345433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[2] = 200; 345533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// page_lengths[3] = 300; 345633605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_lengths, Not(Each(Pair(1, 100)))); 345733605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(page_lengths, Each(Key(Le(3)))); 345833605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// 345933605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// const char* user_ids[] = { "joe", "mike", "tom" }; 346033605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan// EXPECT_THAT(user_ids, Not(Each(Eq(::std::string("tom"))))); 346133605ba45417979cff7254c1196dfee65a7275b3zhanyong.wantemplate <typename M> 346233605ba45417979cff7254c1196dfee65a7275b3zhanyong.waninline internal::EachMatcher<M> Each(M matcher) { 346333605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan return internal::EachMatcher<M>(matcher); 346433605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan} 346533605ba45417979cff7254c1196dfee65a7275b3zhanyong.wan 3466b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// Key(inner_matcher) matches an std::pair whose 'first' field matches 3467b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// inner_matcher. For example, Contains(Key(Ge(5))) can be used to match an 3468b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan// std::map that contains at least one element whose key is >= 5. 3469b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wantemplate <typename M> 3470b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.waninline internal::KeyMatcher<M> Key(M inner_matcher) { 3471b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan return internal::KeyMatcher<M>(inner_matcher); 3472b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan} 3473b5937dab6969ca4b1d8304cc8939ce16c1fb62e5zhanyong.wan 3474f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// Pair(first_matcher, second_matcher) matches a std::pair whose 'first' field 3475f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// matches first_matcher and whose 'second' field matches second_matcher. For 3476f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), "foo"))) can be used 3477f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// to match a std::map<int, string> that contains exactly one element whose key 3478f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan// is >= 5 and whose value equals "foo". 3479f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wantemplate <typename FirstMatcher, typename SecondMatcher> 3480f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.waninline internal::PairMatcher<FirstMatcher, SecondMatcher> 3481f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wanPair(FirstMatcher first_matcher, SecondMatcher second_matcher) { 3482f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan return internal::PairMatcher<FirstMatcher, SecondMatcher>( 3483f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan first_matcher, second_matcher); 3484f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan} 3485f5e1ce5b9237edbc2e524ae9ebcb2452dc842937zhanyong.wan 3486e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a predicate that is satisfied by anything that matches the 3487e35fdd936d133bf8a48de140a3c666897588a05shiqian// given matcher. 3488e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 3489e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::MatcherAsPredicate<M> Matches(M matcher) { 3490e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::MatcherAsPredicate<M>(matcher); 3491e35fdd936d133bf8a48de140a3c666897588a05shiqian} 3492e35fdd936d133bf8a48de140a3c666897588a05shiqian 3493b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan// Returns true iff the value matches the matcher. 3494b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wantemplate <typename T, typename M> 3495b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.waninline bool Value(const T& value, M matcher) { 3496b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan return testing::Matches(matcher)(value); 3497b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan} 3498b82431625d1842d1498f3c0e6f1923ce81837c6ezhanyong.wan 349934b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan// Matches the value against the given matcher and explains the match 350034b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan// result to listener. 350134b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wantemplate <typename T, typename M> 3502a862f1de30ed1ef259bcec61c5939200b29c765czhanyong.waninline bool ExplainMatchResult( 350334b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan M matcher, const T& value, MatchResultListener* listener) { 350434b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan return SafeMatcherCast<const T&>(matcher).MatchAndExplain(value, listener); 350534b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan} 350634b034c21ef4af7c0100194ed6f85910fc99debbzhanyong.wan 3507616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#if GTEST_LANG_CXX11 3508616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// Define variadic matcher versions. They are overloaded in 3509616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan// gmock-generated-matchers.h for the cases supported by pre C++11 compilers. 3510616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <typename... Args> 3511616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::AllOfMatcher<Args...> AllOf(const Args&... matchers) { 3512616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::AllOfMatcher<Args...>(matchers...); 3513616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3514616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3515616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wantemplate <typename... Args> 3516616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.waninline internal::AnyOfMatcher<Args...> AnyOf(const Args&... matchers) { 3517616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan return internal::AnyOfMatcher<Args...>(matchers...); 3518616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan} 3519616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3520616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan#endif // GTEST_LANG_CXX11 3521616180e6847dd3cc6517a59ff2d24e9fd5c8052czhanyong.wan 3522bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// AllArgs(m) is a synonym of m. This is useful in 3523bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3524bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq())); 3525bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3526bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// which is easier to read than 3527bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// 3528bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan// EXPECT_CALL(foo, Bar(_, _)).With(Eq()); 3529bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wantemplate <typename InnerMatcher> 3530bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.waninline InnerMatcher AllArgs(const InnerMatcher& matcher) { return matcher; } 3531bf55085d456e3ee55eb234c98c435e54d0a2d5aazhanyong.wan 3532e35fdd936d133bf8a48de140a3c666897588a05shiqian// These macros allow using matchers to check values in Google Test 3533e35fdd936d133bf8a48de140a3c666897588a05shiqian// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher) 3534e35fdd936d133bf8a48de140a3c666897588a05shiqian// succeed iff the value matches the matcher. If the assertion fails, 3535e35fdd936d133bf8a48de140a3c666897588a05shiqian// the value and the description of the matcher will be printed. 3536e35fdd936d133bf8a48de140a3c666897588a05shiqian#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\ 3537e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 3538e35fdd936d133bf8a48de140a3c666897588a05shiqian#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\ 3539e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 3540e35fdd936d133bf8a48de140a3c666897588a05shiqian 3541e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace testing 3542e35fdd936d133bf8a48de140a3c666897588a05shiqian 3543e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 3544