gmock-matchers.h revision e35fdd936d133bf8a48de140a3c666897588a05
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 41e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <ostream> // NOLINT 42e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <sstream> 43e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <string> 44e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <vector> 45e35fdd936d133bf8a48de140a3c666897588a05shiqian 46e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gmock/gmock-printers.h> 47e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gmock/internal/gmock-internal-utils.h> 48e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gmock/internal/gmock-port.h> 49e35fdd936d133bf8a48de140a3c666897588a05shiqian#include <gtest/gtest.h> 50e35fdd936d133bf8a48de140a3c666897588a05shiqian 51e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace testing { 52e35fdd936d133bf8a48de140a3c666897588a05shiqian 53e35fdd936d133bf8a48de140a3c666897588a05shiqian// To implement a matcher Foo for type T, define: 54e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. a class FooMatcherImpl that implements the 55e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T> interface, and 56e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. a factory function that creates a Matcher<T> object from a 57e35fdd936d133bf8a48de140a3c666897588a05shiqian// FooMatcherImpl*. 58e35fdd936d133bf8a48de140a3c666897588a05shiqian// 59e35fdd936d133bf8a48de140a3c666897588a05shiqian// The two-level delegation design makes it possible to allow a user 60e35fdd936d133bf8a48de140a3c666897588a05shiqian// to write "v" instead of "Eq(v)" where a Matcher is expected, which 61e35fdd936d133bf8a48de140a3c666897588a05shiqian// is impossible if we pass matchers by pointers. It also eases 62e35fdd936d133bf8a48de140a3c666897588a05shiqian// ownership management as Matcher objects can now be copied like 63e35fdd936d133bf8a48de140a3c666897588a05shiqian// plain values. 64e35fdd936d133bf8a48de140a3c666897588a05shiqian 65e35fdd936d133bf8a48de140a3c666897588a05shiqian// The implementation of a matcher. 66e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 67e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherInterface { 68e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 69e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherInterface() {} 70e35fdd936d133bf8a48de140a3c666897588a05shiqian 71e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff the matcher matches x. 72e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const = 0; 73e35fdd936d133bf8a48de140a3c666897588a05shiqian 74e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes this matcher to an ostream. 75e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const = 0; 76e35fdd936d133bf8a48de140a3c666897588a05shiqian 77e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. For 78e35fdd936d133bf8a48de140a3c666897588a05shiqian // example, if the description of this matcher is "is greater than 79e35fdd936d133bf8a48de140a3c666897588a05shiqian // 7", the negated description could be "is not greater than 7". 80e35fdd936d133bf8a48de140a3c666897588a05shiqian // You are not required to override this when implementing 81e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherInterface, but it is highly advised so that your matcher 82e35fdd936d133bf8a48de140a3c666897588a05shiqian // can produce good error messages. 83e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 84e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not ("; 85e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeTo(os); 86e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ")"; 87e35fdd936d133bf8a48de140a3c666897588a05shiqian } 88e35fdd936d133bf8a48de140a3c666897588a05shiqian 89e35fdd936d133bf8a48de140a3c666897588a05shiqian // Explains why x matches, or doesn't match, the matcher. Override 90e35fdd936d133bf8a48de140a3c666897588a05shiqian // this to provide any additional information that helps a user 91e35fdd936d133bf8a48de140a3c666897588a05shiqian // understand the match result. 92e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 93e35fdd936d133bf8a48de140a3c666897588a05shiqian // By default, nothing more needs to be explained, as Google Mock 94e35fdd936d133bf8a48de140a3c666897588a05shiqian // has already printed the value of x when this function is 95e35fdd936d133bf8a48de140a3c666897588a05shiqian // called. 96e35fdd936d133bf8a48de140a3c666897588a05shiqian } 97e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 98e35fdd936d133bf8a48de140a3c666897588a05shiqian 99e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 100e35fdd936d133bf8a48de140a3c666897588a05shiqian 101e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal class for implementing Matcher<T>, which will derive 102e35fdd936d133bf8a48de140a3c666897588a05shiqian// from it. We put functionalities common to all Matcher<T> 103e35fdd936d133bf8a48de140a3c666897588a05shiqian// specializations here to avoid code duplication. 104e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 105e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherBase { 106e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 107e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff this matcher matches x. 108e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(T x) const { return impl_->Matches(x); } 109e35fdd936d133bf8a48de140a3c666897588a05shiqian 110e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes this matcher to an ostream. 111e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { impl_->DescribeTo(os); } 112e35fdd936d133bf8a48de140a3c666897588a05shiqian 113e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes the negation of this matcher to an ostream. 114e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 115e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_->DescribeNegationTo(os); 116e35fdd936d133bf8a48de140a3c666897588a05shiqian } 117e35fdd936d133bf8a48de140a3c666897588a05shiqian 118e35fdd936d133bf8a48de140a3c666897588a05shiqian // Explains why x matches, or doesn't match, the matcher. 119e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(T x, ::std::ostream* os) const { 120e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_->ExplainMatchResultTo(x, os); 121e35fdd936d133bf8a48de140a3c666897588a05shiqian } 122e35fdd936d133bf8a48de140a3c666897588a05shiqian protected: 123e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherBase() {} 124e35fdd936d133bf8a48de140a3c666897588a05shiqian 125e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 126e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherBase(const MatcherInterface<T>* impl) 127e35fdd936d133bf8a48de140a3c666897588a05shiqian : impl_(impl) {} 128e35fdd936d133bf8a48de140a3c666897588a05shiqian 129e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual ~MatcherBase() {} 130e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 131e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr (util/gtl/shared_ptr.h) and linked_ptr have similar 132e35fdd936d133bf8a48de140a3c666897588a05shiqian // interfaces. The former dynamically allocates a chunk of memory 133e35fdd936d133bf8a48de140a3c666897588a05shiqian // to hold the reference count, while the latter tracks all 134e35fdd936d133bf8a48de140a3c666897588a05shiqian // references using a circular linked list without allocating 135e35fdd936d133bf8a48de140a3c666897588a05shiqian // memory. It has been observed that linked_ptr performs better in 136e35fdd936d133bf8a48de140a3c666897588a05shiqian // typical scenarios. However, shared_ptr can out-perform 137e35fdd936d133bf8a48de140a3c666897588a05shiqian // linked_ptr when there are many more uses of the copy constructor 138e35fdd936d133bf8a48de140a3c666897588a05shiqian // than the default constructor. 139e35fdd936d133bf8a48de140a3c666897588a05shiqian // 140e35fdd936d133bf8a48de140a3c666897588a05shiqian // If performance becomes a problem, we should see if using 141e35fdd936d133bf8a48de140a3c666897588a05shiqian // shared_ptr helps. 142e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::linked_ptr<const MatcherInterface<T> > impl_; 143e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 144e35fdd936d133bf8a48de140a3c666897588a05shiqian 145e35fdd936d133bf8a48de140a3c666897588a05shiqian// The default implementation of ExplainMatchResultTo() for 146e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matchers. 147e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename PolymorphicMatcherImpl, typename T> 148e35fdd936d133bf8a48de140a3c666897588a05shiqianinline void ExplainMatchResultTo(const PolymorphicMatcherImpl& impl, const T& x, 149e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) { 150e35fdd936d133bf8a48de140a3c666897588a05shiqian // By default, nothing more needs to be said, as Google Mock already 151e35fdd936d133bf8a48de140a3c666897588a05shiqian // prints the value of x elsewhere. 152e35fdd936d133bf8a48de140a3c666897588a05shiqian} 153e35fdd936d133bf8a48de140a3c666897588a05shiqian 154e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 155e35fdd936d133bf8a48de140a3c666897588a05shiqian 156e35fdd936d133bf8a48de140a3c666897588a05shiqian// A Matcher<T> is a copyable and IMMUTABLE (except by assignment) 157e35fdd936d133bf8a48de140a3c666897588a05shiqian// object that can check whether a value of type T matches. The 158e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation of Matcher<T> is just a linked_ptr to const 159e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherInterface<T>, so copying is fairly cheap. Don't inherit 160e35fdd936d133bf8a48de140a3c666897588a05shiqian// from Matcher! 161e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 162e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher : public internal::MatcherBase<T> { 163e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 164e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a null matcher. Needed for storing Matcher objects in 165e35fdd936d133bf8a48de140a3c666897588a05shiqian // STL containers. 166e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 167e35fdd936d133bf8a48de140a3c666897588a05shiqian 168e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructs a matcher from its implementation. 169e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<T>* impl) 170e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<T>(impl) {} 171e35fdd936d133bf8a48de140a3c666897588a05shiqian 172e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implicit constructor here allows ipeople to write 173e35fdd936d133bf8a48de140a3c666897588a05shiqian // EXPECT_CALL(foo, Bar(5)) instead of EXPECT_CALL(foo, Bar(Eq(5))) sometimes 174e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(T value); // NOLINT 175e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 176e35fdd936d133bf8a48de140a3c666897588a05shiqian 177e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following two specializations allow the user to write str 178e35fdd936d133bf8a48de140a3c666897588a05shiqian// instead of Eq(str) and "foo" instead of Eq("foo") when a string 179e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher is expected. 180e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 181e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher<const internal::string&> 182e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<const internal::string&> { 183e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 184e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 185e35fdd936d133bf8a48de140a3c666897588a05shiqian 186e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<const internal::string&>* impl) 187e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<const internal::string&>(impl) {} 188e35fdd936d133bf8a48de140a3c666897588a05shiqian 189e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 190e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 191e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 192e35fdd936d133bf8a48de140a3c666897588a05shiqian 193e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 194e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 195e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 196e35fdd936d133bf8a48de140a3c666897588a05shiqian 197e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 198e35fdd936d133bf8a48de140a3c666897588a05shiqianclass Matcher<internal::string> 199e35fdd936d133bf8a48de140a3c666897588a05shiqian : public internal::MatcherBase<internal::string> { 200e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 201e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher() {} 202e35fdd936d133bf8a48de140a3c666897588a05shiqian 203e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Matcher(const MatcherInterface<internal::string>* impl) 204e35fdd936d133bf8a48de140a3c666897588a05shiqian : internal::MatcherBase<internal::string>(impl) {} 205e35fdd936d133bf8a48de140a3c666897588a05shiqian 206e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write str instead of Eq(str) sometimes, where 207e35fdd936d133bf8a48de140a3c666897588a05shiqian // str is a string object. 208e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const internal::string& s); // NOLINT 209e35fdd936d133bf8a48de140a3c666897588a05shiqian 210e35fdd936d133bf8a48de140a3c666897588a05shiqian // Allows the user to write "foo" instead of Eq("foo") sometimes. 211e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher(const char* s); // NOLINT 212e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 213e35fdd936d133bf8a48de140a3c666897588a05shiqian 214e35fdd936d133bf8a48de140a3c666897588a05shiqian// The PolymorphicMatcher class template makes it easy to implement a 215e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matcher (i.e. a matcher that can match values of more 216e35fdd936d133bf8a48de140a3c666897588a05shiqian// than one type, e.g. Eq(n) and NotNull()). 217e35fdd936d133bf8a48de140a3c666897588a05shiqian// 218e35fdd936d133bf8a48de140a3c666897588a05shiqian// To define a polymorphic matcher, a user first provides a Impl class 219e35fdd936d133bf8a48de140a3c666897588a05shiqian// that has a Matches() method, a DescribeTo() method, and a 220e35fdd936d133bf8a48de140a3c666897588a05shiqian// DescribeNegationTo() method. The Matches() method is usually a 221e35fdd936d133bf8a48de140a3c666897588a05shiqian// method template (such that it works with multiple types). Then the 222e35fdd936d133bf8a48de140a3c666897588a05shiqian// user creates the polymorphic matcher using 223e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakePolymorphicMatcher(). To provide additional explanation to the 224e35fdd936d133bf8a48de140a3c666897588a05shiqian// match result, define a FREE function (or function template) 225e35fdd936d133bf8a48de140a3c666897588a05shiqian// 226e35fdd936d133bf8a48de140a3c666897588a05shiqian// void ExplainMatchResultTo(const Impl& matcher, const Value& value, 227e35fdd936d133bf8a48de140a3c666897588a05shiqian// ::std::ostream* os); 228e35fdd936d133bf8a48de140a3c666897588a05shiqian// 229e35fdd936d133bf8a48de140a3c666897588a05shiqian// in the SAME NAME SPACE where Impl is defined. See the definition 230e35fdd936d133bf8a48de140a3c666897588a05shiqian// of NotNull() for a complete example. 231e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 232e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PolymorphicMatcher { 233e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 234e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PolymorphicMatcher(const Impl& impl) : impl_(impl) {} 235e35fdd936d133bf8a48de140a3c666897588a05shiqian 236e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 237e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 238e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new MonomorphicImpl<T>(impl_)); 239e35fdd936d133bf8a48de140a3c666897588a05shiqian } 240e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 241e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 242e35fdd936d133bf8a48de140a3c666897588a05shiqian class MonomorphicImpl : public MatcherInterface<T> { 243e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 244e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MonomorphicImpl(const Impl& impl) : impl_(impl) {} 245e35fdd936d133bf8a48de140a3c666897588a05shiqian 246e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { return impl_.Matches(x); } 247e35fdd936d133bf8a48de140a3c666897588a05shiqian 248e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 249e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeTo(os); 250e35fdd936d133bf8a48de140a3c666897588a05shiqian } 251e35fdd936d133bf8a48de140a3c666897588a05shiqian 252e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 253e35fdd936d133bf8a48de140a3c666897588a05shiqian impl_.DescribeNegationTo(os); 254e35fdd936d133bf8a48de140a3c666897588a05shiqian } 255e35fdd936d133bf8a48de140a3c666897588a05shiqian 256e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 257e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::testing::internal::ExplainMatchResultTo; 258e35fdd936d133bf8a48de140a3c666897588a05shiqian 259e35fdd936d133bf8a48de140a3c666897588a05shiqian // C++ uses Argument-Dependent Look-up (aka Koenig Look-up) to 260e35fdd936d133bf8a48de140a3c666897588a05shiqian // resolve the call to ExplainMatchResultTo() here. This 261e35fdd936d133bf8a48de140a3c666897588a05shiqian // means that if there's a ExplainMatchResultTo() function 262e35fdd936d133bf8a48de140a3c666897588a05shiqian // defined in the name space where class Impl is defined, it 263e35fdd936d133bf8a48de140a3c666897588a05shiqian // will be picked by the compiler as the better match. 264e35fdd936d133bf8a48de140a3c666897588a05shiqian // Otherwise the default implementation of it in 265e35fdd936d133bf8a48de140a3c666897588a05shiqian // ::testing::internal will be picked. 266e35fdd936d133bf8a48de140a3c666897588a05shiqian // 267e35fdd936d133bf8a48de140a3c666897588a05shiqian // This look-up rule lets a writer of a polymorphic matcher 268e35fdd936d133bf8a48de140a3c666897588a05shiqian // customize the behavior of ExplainMatchResultTo() when he 269e35fdd936d133bf8a48de140a3c666897588a05shiqian // cares to. Nothing needs to be done by the writer if he 270e35fdd936d133bf8a48de140a3c666897588a05shiqian // doesn't need to customize it. 271e35fdd936d133bf8a48de140a3c666897588a05shiqian ExplainMatchResultTo(impl_, x, os); 272e35fdd936d133bf8a48de140a3c666897588a05shiqian } 273e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 274e35fdd936d133bf8a48de140a3c666897588a05shiqian const Impl impl_; 275e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 276e35fdd936d133bf8a48de140a3c666897588a05shiqian 277e35fdd936d133bf8a48de140a3c666897588a05shiqian const Impl impl_; 278e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 279e35fdd936d133bf8a48de140a3c666897588a05shiqian 280e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher from its implementation. This is easier to use 281e35fdd936d133bf8a48de140a3c666897588a05shiqian// than the Matcher<T> constructor as it doesn't require you to 282e35fdd936d133bf8a48de140a3c666897588a05shiqian// explicitly write the template argument, e.g. 283e35fdd936d133bf8a48de140a3c666897588a05shiqian// 284e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakeMatcher(foo); 285e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 286e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<const string&>(foo); 287e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 288e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> MakeMatcher(const MatcherInterface<T>* impl) { 289e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(impl); 290e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 291e35fdd936d133bf8a48de140a3c666897588a05shiqian 292e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher from its implementation. This is 293e35fdd936d133bf8a48de140a3c666897588a05shiqian// easier to use than the PolymorphicMatcher<Impl> constructor as it 294e35fdd936d133bf8a48de140a3c666897588a05shiqian// doesn't require you to explicitly write the template argument, e.g. 295e35fdd936d133bf8a48de140a3c666897588a05shiqian// 296e35fdd936d133bf8a48de140a3c666897588a05shiqian// MakePolymorphicMatcher(foo); 297e35fdd936d133bf8a48de140a3c666897588a05shiqian// vs 298e35fdd936d133bf8a48de140a3c666897588a05shiqian// PolymorphicMatcher<TypeOfFoo>(foo); 299e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <class Impl> 300e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<Impl> MakePolymorphicMatcher(const Impl& impl) { 301e35fdd936d133bf8a48de140a3c666897588a05shiqian return PolymorphicMatcher<Impl>(impl); 302e35fdd936d133bf8a48de140a3c666897588a05shiqian} 303e35fdd936d133bf8a48de140a3c666897588a05shiqian 304e35fdd936d133bf8a48de140a3c666897588a05shiqian// In order to be safe and clear, casting between different matcher 305e35fdd936d133bf8a48de140a3c666897588a05shiqian// types is done explicitly via MatcherCast<T>(m), which takes a 306e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher m and returns a Matcher<T>. It compiles only when T can be 307e35fdd936d133bf8a48de140a3c666897588a05shiqian// statically converted to the argument type of m. 308e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 309e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T> MatcherCast(M m); 310e35fdd936d133bf8a48de140a3c666897588a05shiqian 311e35fdd936d133bf8a48de140a3c666897588a05shiqian// A<T>() returns a matcher that matches any value of type T. 312e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 313e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T> A(); 314e35fdd936d133bf8a48de140a3c666897588a05shiqian 315e35fdd936d133bf8a48de140a3c666897588a05shiqian// Anything inside the 'internal' namespace IS INTERNAL IMPLEMENTATION 316e35fdd936d133bf8a48de140a3c666897588a05shiqian// and MUST NOT BE USED IN USER CODE!!! 317e35fdd936d133bf8a48de140a3c666897588a05shiqiannamespace internal { 318e35fdd936d133bf8a48de140a3c666897588a05shiqian 319e35fdd936d133bf8a48de140a3c666897588a05shiqian// Appends the explanation on the result of matcher.Matches(value) to 320e35fdd936d133bf8a48de140a3c666897588a05shiqian// os iff the explanation is not empty. 321e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 322e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultAsNeededTo(const Matcher<T>& matcher, T value, 323e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) { 324e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream reason; 325e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(value, &reason); 326e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s = reason.str(); 327e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s != "") { 328e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << " (" << s << ")"; 329e35fdd936d133bf8a48de140a3c666897588a05shiqian } 330e35fdd936d133bf8a48de140a3c666897588a05shiqian} 331e35fdd936d133bf8a48de140a3c666897588a05shiqian 332e35fdd936d133bf8a48de140a3c666897588a05shiqian// An internal helper class for doing compile-time loop on a tuple's 333e35fdd936d133bf8a48de140a3c666897588a05shiqian// fields. 334e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <size_t N> 335e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix { 336e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 337e35fdd936d133bf8a48de140a3c666897588a05shiqian // TuplePrefix<N>::Matches(matcher_tuple, value_tuple) returns true 338e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff the first N fields of matcher_tuple matches the first N 339e35fdd936d133bf8a48de140a3c666897588a05shiqian // fields of value_tuple, respectively. 340e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 341e35fdd936d133bf8a48de140a3c666897588a05shiqian static bool Matches(const MatcherTuple& matcher_tuple, 342e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 343e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 344e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<N - 1>::Matches(matcher_tuple, value_tuple) 345e35fdd936d133bf8a48de140a3c666897588a05shiqian && get<N - 1>(matcher_tuple).Matches(get<N - 1>(value_tuple)); 346e35fdd936d133bf8a48de140a3c666897588a05shiqian } 347e35fdd936d133bf8a48de140a3c666897588a05shiqian 348e35fdd936d133bf8a48de140a3c666897588a05shiqian // TuplePrefix<N>::DescribeMatchFailuresTo(matchers, values, os) 349e35fdd936d133bf8a48de140a3c666897588a05shiqian // describes failures in matching the first N fields of matchers 350e35fdd936d133bf8a48de140a3c666897588a05shiqian // against the first N fields of values. If there is no failure, 351e35fdd936d133bf8a48de140a3c666897588a05shiqian // nothing will be streamed to os. 352e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 353e35fdd936d133bf8a48de140a3c666897588a05shiqian static void DescribeMatchFailuresTo(const MatcherTuple& matchers, 354e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& values, 355e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) { 356e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_element; 357e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::get; 358e35fdd936d133bf8a48de140a3c666897588a05shiqian 359e35fdd936d133bf8a48de140a3c666897588a05shiqian // First, describes failures in the first N - 1 fields. 360e35fdd936d133bf8a48de140a3c666897588a05shiqian TuplePrefix<N - 1>::DescribeMatchFailuresTo(matchers, values, os); 361e35fdd936d133bf8a48de140a3c666897588a05shiqian 362e35fdd936d133bf8a48de140a3c666897588a05shiqian // Then describes the failure (if any) in the (N - 1)-th (0-based) 363e35fdd936d133bf8a48de140a3c666897588a05shiqian // field. 364e35fdd936d133bf8a48de140a3c666897588a05shiqian typename tuple_element<N - 1, MatcherTuple>::type matcher = 365e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers); 366e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename tuple_element<N - 1, ValueTuple>::type Value; 367e35fdd936d133bf8a48de140a3c666897588a05shiqian Value value = get<N - 1>(values); 368e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!matcher.Matches(value)) { 369e35fdd936d133bf8a48de140a3c666897588a05shiqian // TODO(wan): include in the message the name of the parameter 370e35fdd936d133bf8a48de140a3c666897588a05shiqian // as used in MOCK_METHOD*() when possible. 371e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << " Expected arg #" << N - 1 << ": "; 372e35fdd936d133bf8a48de140a3c666897588a05shiqian get<N - 1>(matchers).DescribeTo(os); 373e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n Actual: "; 374e35fdd936d133bf8a48de140a3c666897588a05shiqian // We remove the reference in type Value to prevent the 375e35fdd936d133bf8a48de140a3c666897588a05shiqian // universal printer from printing the address of value, which 376e35fdd936d133bf8a48de140a3c666897588a05shiqian // isn't interesting to the user most of the time. The 377e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher's ExplainMatchResultTo() method handles the case when 378e35fdd936d133bf8a48de140a3c666897588a05shiqian // the address is interesting. 379e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::UniversalPrinter<GMOCK_REMOVE_REFERENCE(Value)>:: 380e35fdd936d133bf8a48de140a3c666897588a05shiqian Print(value, os); 381e35fdd936d133bf8a48de140a3c666897588a05shiqian ExplainMatchResultAsNeededTo<Value>(matcher, value, os); 382e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "\n"; 383e35fdd936d133bf8a48de140a3c666897588a05shiqian } 384e35fdd936d133bf8a48de140a3c666897588a05shiqian } 385e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 386e35fdd936d133bf8a48de140a3c666897588a05shiqian 387e35fdd936d133bf8a48de140a3c666897588a05shiqian// The base case. 388e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <> 389e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TuplePrefix<0> { 390e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 391e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 392e35fdd936d133bf8a48de140a3c666897588a05shiqian static bool Matches(const MatcherTuple& matcher_tuple, 393e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 394e35fdd936d133bf8a48de140a3c666897588a05shiqian return true; 395e35fdd936d133bf8a48de140a3c666897588a05shiqian } 396e35fdd936d133bf8a48de140a3c666897588a05shiqian 397e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename MatcherTuple, typename ValueTuple> 398e35fdd936d133bf8a48de140a3c666897588a05shiqian static void DescribeMatchFailuresTo(const MatcherTuple& matchers, 399e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& values, 400e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) {} 401e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 402e35fdd936d133bf8a48de140a3c666897588a05shiqian 403e35fdd936d133bf8a48de140a3c666897588a05shiqian// TupleMatches(matcher_tuple, value_tuple) returns true iff all 404e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers in matcher_tuple match the corresponding fields in 405e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple. It is a compiler error if matcher_tuple and 406e35fdd936d133bf8a48de140a3c666897588a05shiqian// value_tuple have different number of fields or incompatible field 407e35fdd936d133bf8a48de140a3c666897588a05shiqian// types. 408e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 409e35fdd936d133bf8a48de140a3c666897588a05shiqianbool TupleMatches(const MatcherTuple& matcher_tuple, 410e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& value_tuple) { 411e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 412e35fdd936d133bf8a48de140a3c666897588a05shiqian // Makes sure that matcher_tuple and value_tuple have the same 413e35fdd936d133bf8a48de140a3c666897588a05shiqian // number of fields. 414e35fdd936d133bf8a48de140a3c666897588a05shiqian GMOCK_COMPILE_ASSERT(tuple_size<MatcherTuple>::value == 415e35fdd936d133bf8a48de140a3c666897588a05shiqian tuple_size<ValueTuple>::value, 416e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_and_value_have_different_numbers_of_fields); 417e35fdd936d133bf8a48de140a3c666897588a05shiqian return TuplePrefix<tuple_size<ValueTuple>::value>:: 418e35fdd936d133bf8a48de140a3c666897588a05shiqian Matches(matcher_tuple, value_tuple); 419e35fdd936d133bf8a48de140a3c666897588a05shiqian} 420e35fdd936d133bf8a48de140a3c666897588a05shiqian 421e35fdd936d133bf8a48de140a3c666897588a05shiqian// Describes failures in matching matchers against values. If there 422e35fdd936d133bf8a48de140a3c666897588a05shiqian// is no failure, nothing will be streamed to os. 423e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename MatcherTuple, typename ValueTuple> 424e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid DescribeMatchFailureTupleTo(const MatcherTuple& matchers, 425e35fdd936d133bf8a48de140a3c666897588a05shiqian const ValueTuple& values, 426e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) { 427e35fdd936d133bf8a48de140a3c666897588a05shiqian using ::std::tr1::tuple_size; 428e35fdd936d133bf8a48de140a3c666897588a05shiqian TuplePrefix<tuple_size<MatcherTuple>::value>::DescribeMatchFailuresTo( 429e35fdd936d133bf8a48de140a3c666897588a05shiqian matchers, values, os); 430e35fdd936d133bf8a48de140a3c666897588a05shiqian} 431e35fdd936d133bf8a48de140a3c666897588a05shiqian 432e35fdd936d133bf8a48de140a3c666897588a05shiqian// The MatcherCastImpl class template is a helper for implementing 433e35fdd936d133bf8a48de140a3c666897588a05shiqian// MatcherCast(). We need this helper in order to partially 434e35fdd936d133bf8a48de140a3c666897588a05shiqian// specialize the implementation of MatcherCast() (C++ allows 435e35fdd936d133bf8a48de140a3c666897588a05shiqian// class/struct templates to be partially specialized, but not 436e35fdd936d133bf8a48de140a3c666897588a05shiqian// function templates.). 437e35fdd936d133bf8a48de140a3c666897588a05shiqian 438e35fdd936d133bf8a48de140a3c666897588a05shiqian// This general version is used when MatcherCast()'s argument is a 439e35fdd936d133bf8a48de140a3c666897588a05shiqian// polymorphic matcher (i.e. something that can be converted to a 440e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher but is not one yet; for example, Eq(value)). 441e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 442e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl { 443e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 444e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(M polymorphic_matcher) { 445e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(polymorphic_matcher); 446e35fdd936d133bf8a48de140a3c666897588a05shiqian } 447e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 448e35fdd936d133bf8a48de140a3c666897588a05shiqian 449e35fdd936d133bf8a48de140a3c666897588a05shiqian// This more specialized version is used when MatcherCast()'s argument 450e35fdd936d133bf8a48de140a3c666897588a05shiqian// is already a Matcher. This only compiles when type T can be 451e35fdd936d133bf8a48de140a3c666897588a05shiqian// statically converted to type U. 452e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename U> 453e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl<T, Matcher<U> > { 454e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 455e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(const Matcher<U>& source_matcher) { 456e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl(source_matcher)); 457e35fdd936d133bf8a48de140a3c666897588a05shiqian } 458e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 459e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 460e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 461e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Matcher<U>& source_matcher) 462e35fdd936d133bf8a48de140a3c666897588a05shiqian : source_matcher_(source_matcher) {} 463e35fdd936d133bf8a48de140a3c666897588a05shiqian 464e35fdd936d133bf8a48de140a3c666897588a05shiqian // We delegate the matching logic to the source matcher. 465e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { 466e35fdd936d133bf8a48de140a3c666897588a05shiqian return source_matcher_.Matches(static_cast<U>(x)); 467e35fdd936d133bf8a48de140a3c666897588a05shiqian } 468e35fdd936d133bf8a48de140a3c666897588a05shiqian 469e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 470e35fdd936d133bf8a48de140a3c666897588a05shiqian source_matcher_.DescribeTo(os); 471e35fdd936d133bf8a48de140a3c666897588a05shiqian } 472e35fdd936d133bf8a48de140a3c666897588a05shiqian 473e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 474e35fdd936d133bf8a48de140a3c666897588a05shiqian source_matcher_.DescribeNegationTo(os); 475e35fdd936d133bf8a48de140a3c666897588a05shiqian } 476e35fdd936d133bf8a48de140a3c666897588a05shiqian 477e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 478e35fdd936d133bf8a48de140a3c666897588a05shiqian source_matcher_.ExplainMatchResultTo(static_cast<U>(x), os); 479e35fdd936d133bf8a48de140a3c666897588a05shiqian } 480e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 481e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<U> source_matcher_; 482e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 483e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 484e35fdd936d133bf8a48de140a3c666897588a05shiqian 485e35fdd936d133bf8a48de140a3c666897588a05shiqian// This even more specialized version is used for efficiently casting 486e35fdd936d133bf8a48de140a3c666897588a05shiqian// a matcher to its own type. 487e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 488e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherCastImpl<T, Matcher<T> > { 489e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 490e35fdd936d133bf8a48de140a3c666897588a05shiqian static Matcher<T> Cast(const Matcher<T>& matcher) { return matcher; } 491e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 492e35fdd936d133bf8a48de140a3c666897588a05shiqian 493e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements A<T>(). 494e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 495e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnyMatcherImpl : public MatcherInterface<T> { 496e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 497e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { return true; } 498e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { *os << "is anything"; } 499e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 500e35fdd936d133bf8a48de140a3c666897588a05shiqian // This is mostly for completeness' safe, as it's not very useful 501e35fdd936d133bf8a48de140a3c666897588a05shiqian // to write Not(A<bool>()). However we cannot completely rule out 502e35fdd936d133bf8a48de140a3c666897588a05shiqian // such a possibility, and it doesn't hurt to be prepared. 503e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 504e35fdd936d133bf8a48de140a3c666897588a05shiqian } 505e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 506e35fdd936d133bf8a48de140a3c666897588a05shiqian 507e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements _, a matcher that matches any value of any 508e35fdd936d133bf8a48de140a3c666897588a05shiqian// type. This is a polymorphic matcher, so we need a template type 509e35fdd936d133bf8a48de140a3c666897588a05shiqian// conversion operator to make it appearing as a Matcher<T> for any 510e35fdd936d133bf8a48de140a3c666897588a05shiqian// type T. 511e35fdd936d133bf8a48de140a3c666897588a05shiqianclass AnythingMatcher { 512e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 513e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 514e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { return A<T>(); } 515e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 516e35fdd936d133bf8a48de140a3c666897588a05shiqian 517e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares a given value with a 518e35fdd936d133bf8a48de140a3c666897588a05shiqian// pre-supplied value using one of the ==, <=, <, etc, operators. The 519e35fdd936d133bf8a48de140a3c666897588a05shiqian// two values being compared don't have to have the same type. 520e35fdd936d133bf8a48de140a3c666897588a05shiqian// 521e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq(5) can be 522e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match an int, a short, a double, etc). Therefore we use 523e35fdd936d133bf8a48de140a3c666897588a05shiqian// a template type conversion operator in the implementation. 524e35fdd936d133bf8a48de140a3c666897588a05shiqian// 525e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 526e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 527e35fdd936d133bf8a48de140a3c666897588a05shiqian// 528e35fdd936d133bf8a48de140a3c666897588a05shiqian// The following template definition assumes that the Rhs parameter is 529e35fdd936d133bf8a48de140a3c666897588a05shiqian// a "bare" type (i.e. neither 'const T' nor 'T&'). 530e35fdd936d133bf8a48de140a3c666897588a05shiqian#define GMOCK_IMPLEMENT_COMPARISON_MATCHER(name, op, relation) \ 531e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Rhs> class name##Matcher { \ 532e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 533e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit name##Matcher(const Rhs& rhs) : rhs_(rhs) {} \ 534e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 535e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Lhs>() const { \ 536e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Lhs>(rhs_)); \ 537e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 538e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 539e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Lhs> \ 540e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Lhs> { \ 541e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 542e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Rhs& rhs) : rhs_(rhs) {} \ 543e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(Lhs lhs) const { return lhs op rhs_; } \ 544e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 545e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is " relation " "; \ 546e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Rhs>::Print(rhs_, os); \ 547e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 548e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 549e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is not " relation " "; \ 550e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Rhs>::Print(rhs_, os); \ 551e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 552e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 553e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 554e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 555e35fdd936d133bf8a48de140a3c666897588a05shiqian Rhs rhs_; \ 556e35fdd936d133bf8a48de140a3c666897588a05shiqian } 557e35fdd936d133bf8a48de140a3c666897588a05shiqian 558e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(v), Ge(v), Gt(v), Le(v), Lt(v), and Ne(v) 559e35fdd936d133bf8a48de140a3c666897588a05shiqian// respectively. 560e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Eq, ==, "equal to"); 561e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Ge, >=, "greater than or equal to"); 562e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Gt, >, "greater than"); 563e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Le, <=, "less than or equal to"); 564e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Lt, <, "less than"); 565e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON_MATCHER(Ne, !=, "not equal to"); 566e35fdd936d133bf8a48de140a3c666897588a05shiqian 567e35fdd936d133bf8a48de140a3c666897588a05shiqian#undef GMOCK_IMPLEMENT_COMPARISON_MATCHER 568e35fdd936d133bf8a48de140a3c666897588a05shiqian 569e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic NotNull() matcher, which matches any 570e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointer that is not NULL. 571e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotNullMatcher { 572e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 573e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 574e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(T* p) const { return p != NULL; } 575e35fdd936d133bf8a48de140a3c666897588a05shiqian 576e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { *os << "is not NULL"; } 577e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 578e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NULL"; 579e35fdd936d133bf8a48de140a3c666897588a05shiqian } 580e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 581e35fdd936d133bf8a48de140a3c666897588a05shiqian 582e35fdd936d133bf8a48de140a3c666897588a05shiqian// Ref(variable) matches any argument that is a reference to 583e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'variable'. This matcher is polymorphic as it can match any 584e35fdd936d133bf8a48de140a3c666897588a05shiqian// super type of the type of 'variable'. 585e35fdd936d133bf8a48de140a3c666897588a05shiqian// 586e35fdd936d133bf8a48de140a3c666897588a05shiqian// The RefMatcher template class implements Ref(variable). It can 587e35fdd936d133bf8a48de140a3c666897588a05shiqian// only be instantiated with a reference type. This prevents a user 588e35fdd936d133bf8a48de140a3c666897588a05shiqian// from mistakenly using Ref(x) to match a non-reference function 589e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument. For example, the following will righteously cause a 590e35fdd936d133bf8a48de140a3c666897588a05shiqian// compiler error: 591e35fdd936d133bf8a48de140a3c666897588a05shiqian// 592e35fdd936d133bf8a48de140a3c666897588a05shiqian// int n; 593e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int> m1 = Ref(n); // This won't compile. 594e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matcher<int&> m2 = Ref(n); // This will compile. 595e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 596e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher; 597e35fdd936d133bf8a48de140a3c666897588a05shiqian 598e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 599e35fdd936d133bf8a48de140a3c666897588a05shiqianclass RefMatcher<T&> { 600e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Mock is a generic framework and thus needs to support 601e35fdd936d133bf8a48de140a3c666897588a05shiqian // mocking any function types, including those that take non-const 602e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference arguments. Therefore the template parameter T (and 603e35fdd936d133bf8a48de140a3c666897588a05shiqian // Super below) can be instantiated to either a const type or a 604e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const type. 605e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 606e35fdd936d133bf8a48de140a3c666897588a05shiqian // RefMatcher() takes a T& instead of const T&, as we want the 607e35fdd936d133bf8a48de140a3c666897588a05shiqian // compiler to catch using Ref(const_value) as a matcher for a 608e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference. 609e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit RefMatcher(T& x) : object_(x) {} // NOLINT 610e35fdd936d133bf8a48de140a3c666897588a05shiqian 611e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 612e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Super&>() const { 613e35fdd936d133bf8a48de140a3c666897588a05shiqian // By passing object_ (type T&) to Impl(), which expects a Super&, 614e35fdd936d133bf8a48de140a3c666897588a05shiqian // we make sure that Super is a super type of T. In particular, 615e35fdd936d133bf8a48de140a3c666897588a05shiqian // this catches using Ref(const_value) as a matcher for a 616e35fdd936d133bf8a48de140a3c666897588a05shiqian // non-const reference, as you cannot implicitly convert a const 617e35fdd936d133bf8a48de140a3c666897588a05shiqian // reference to a non-const reference. 618e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Super>(object_)); 619e35fdd936d133bf8a48de140a3c666897588a05shiqian } 620e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 621e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Super> 622e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Super&> { 623e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 624e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(Super& x) : object_(x) {} // NOLINT 625e35fdd936d133bf8a48de140a3c666897588a05shiqian 626e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matches() takes a Super& (as opposed to const Super&) in 627e35fdd936d133bf8a48de140a3c666897588a05shiqian // order to match the interface MatcherInterface<Super&>. 628e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(Super& x) const { return &x == &object_; } // NOLINT 629e35fdd936d133bf8a48de140a3c666897588a05shiqian 630e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 631e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "references the variable "; 632e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 633e35fdd936d133bf8a48de140a3c666897588a05shiqian } 634e35fdd936d133bf8a48de140a3c666897588a05shiqian 635e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 636e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not reference the variable "; 637e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<Super&>::Print(object_, os); 638e35fdd936d133bf8a48de140a3c666897588a05shiqian } 639e35fdd936d133bf8a48de140a3c666897588a05shiqian 640e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(Super& x, // NOLINT 641e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) const { 642e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is located @" << static_cast<const void*>(&x); 643e35fdd936d133bf8a48de140a3c666897588a05shiqian } 644e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 645e35fdd936d133bf8a48de140a3c666897588a05shiqian const Super& object_; 646e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 647e35fdd936d133bf8a48de140a3c666897588a05shiqian 648e35fdd936d133bf8a48de140a3c666897588a05shiqian T& object_; 649e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 650e35fdd936d133bf8a48de140a3c666897588a05shiqian 651e35fdd936d133bf8a48de140a3c666897588a05shiqian// Polymorphic helper functions for narrow and wide string matchers. 652e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) { 653e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveCStringEquals(lhs, rhs); 654e35fdd936d133bf8a48de140a3c666897588a05shiqian} 655e35fdd936d133bf8a48de140a3c666897588a05shiqian 656e35fdd936d133bf8a48de140a3c666897588a05shiqianinline bool CaseInsensitiveCStringEquals(const wchar_t* lhs, 657e35fdd936d133bf8a48de140a3c666897588a05shiqian const wchar_t* rhs) { 658e35fdd936d133bf8a48de140a3c666897588a05shiqian return String::CaseInsensitiveWideCStringEquals(lhs, rhs); 659e35fdd936d133bf8a48de140a3c666897588a05shiqian} 660e35fdd936d133bf8a48de140a3c666897588a05shiqian 661e35fdd936d133bf8a48de140a3c666897588a05shiqian// String comparison for narrow or wide strings that can have embedded NUL 662e35fdd936d133bf8a48de140a3c666897588a05shiqian// characters. 663e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 664e35fdd936d133bf8a48de140a3c666897588a05shiqianbool CaseInsensitiveStringEquals(const StringType& s1, 665e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType& s2) { 666e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the heads equal? 667e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) { 668e35fdd936d133bf8a48de140a3c666897588a05shiqian return false; 669e35fdd936d133bf8a48de140a3c666897588a05shiqian } 670e35fdd936d133bf8a48de140a3c666897588a05shiqian 671e35fdd936d133bf8a48de140a3c666897588a05shiqian // Skip the equal heads. 672e35fdd936d133bf8a48de140a3c666897588a05shiqian const typename StringType::value_type nul = 0; 673e35fdd936d133bf8a48de140a3c666897588a05shiqian const size_t i1 = s1.find(nul), i2 = s2.find(nul); 674e35fdd936d133bf8a48de140a3c666897588a05shiqian 675e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are we at the end of either s1 or s2? 676e35fdd936d133bf8a48de140a3c666897588a05shiqian if (i1 == StringType::npos || i2 == StringType::npos) { 677e35fdd936d133bf8a48de140a3c666897588a05shiqian return i1 == i2; 678e35fdd936d133bf8a48de140a3c666897588a05shiqian } 679e35fdd936d133bf8a48de140a3c666897588a05shiqian 680e35fdd936d133bf8a48de140a3c666897588a05shiqian // Are the tails equal? 681e35fdd936d133bf8a48de140a3c666897588a05shiqian return CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1)); 682e35fdd936d133bf8a48de140a3c666897588a05shiqian} 683e35fdd936d133bf8a48de140a3c666897588a05shiqian 684e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 685e35fdd936d133bf8a48de140a3c666897588a05shiqian 686e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements equality-based string matchers like StrEq, StrCaseNe, and etc. 687e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 688e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StrEqualityMatcher { 689e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 690e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 691e35fdd936d133bf8a48de140a3c666897588a05shiqian 692e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEqualityMatcher(const StringType& str, bool expect_eq, 693e35fdd936d133bf8a48de140a3c666897588a05shiqian bool case_sensitive) 694e35fdd936d133bf8a48de140a3c666897588a05shiqian : string_(str), expect_eq_(expect_eq), case_sensitive_(case_sensitive) {} 695e35fdd936d133bf8a48de140a3c666897588a05shiqian 696e35fdd936d133bf8a48de140a3c666897588a05shiqian // When expect_eq_ is true, returns true iff s is equal to string_; 697e35fdd936d133bf8a48de140a3c666897588a05shiqian // otherwise returns true iff s is not equal to string_. 698e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(ConstCharPointer s) const { 699e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s == NULL) { 700e35fdd936d133bf8a48de140a3c666897588a05shiqian return !expect_eq_; 701e35fdd936d133bf8a48de140a3c666897588a05shiqian } 702e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matches(StringType(s)); 703e35fdd936d133bf8a48de140a3c666897588a05shiqian } 704e35fdd936d133bf8a48de140a3c666897588a05shiqian 705e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const StringType& s) const { 706e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool eq = case_sensitive_ ? s == string_ : 707e35fdd936d133bf8a48de140a3c666897588a05shiqian CaseInsensitiveStringEquals(s, string_); 708e35fdd936d133bf8a48de140a3c666897588a05shiqian return expect_eq_ == eq; 709e35fdd936d133bf8a48de140a3c666897588a05shiqian } 710e35fdd936d133bf8a48de140a3c666897588a05shiqian 711e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 712e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(expect_eq_, os); 713e35fdd936d133bf8a48de140a3c666897588a05shiqian } 714e35fdd936d133bf8a48de140a3c666897588a05shiqian 715e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 716e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeToHelper(!expect_eq_, os); 717e35fdd936d133bf8a48de140a3c666897588a05shiqian } 718e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 719e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeToHelper(bool expect_eq, ::std::ostream* os) const { 720e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is "; 721e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!expect_eq) { 722e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not "; 723e35fdd936d133bf8a48de140a3c666897588a05shiqian } 724e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "equal to "; 725e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!case_sensitive_) { 726e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "(ignoring case) "; 727e35fdd936d133bf8a48de140a3c666897588a05shiqian } 728e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(string_, os); 729e35fdd936d133bf8a48de140a3c666897588a05shiqian } 730e35fdd936d133bf8a48de140a3c666897588a05shiqian 731e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType string_; 732e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool expect_eq_; 733e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool case_sensitive_; 734e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 735e35fdd936d133bf8a48de140a3c666897588a05shiqian 736e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic HasSubstr(substring) matcher, which 737e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 738e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 739e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 740e35fdd936d133bf8a48de140a3c666897588a05shiqianclass HasSubstrMatcher { 741e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 742e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 743e35fdd936d133bf8a48de140a3c666897588a05shiqian 744e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit HasSubstrMatcher(const StringType& substring) 745e35fdd936d133bf8a48de140a3c666897588a05shiqian : substring_(substring) {} 746e35fdd936d133bf8a48de140a3c666897588a05shiqian 747e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow HasSubstr(substring) to be used as a 748e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 749e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s contains substring_ as a substring. 750e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(ConstCharPointer s) const { 751e35fdd936d133bf8a48de140a3c666897588a05shiqian return s != NULL && Matches(StringType(s)); 752e35fdd936d133bf8a48de140a3c666897588a05shiqian } 753e35fdd936d133bf8a48de140a3c666897588a05shiqian 754e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const StringType& s) const { 755e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.find(substring_) != StringType::npos; 756e35fdd936d133bf8a48de140a3c666897588a05shiqian } 757e35fdd936d133bf8a48de140a3c666897588a05shiqian 758e35fdd936d133bf8a48de140a3c666897588a05shiqian // Describes what this matcher matches. 759e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 760e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has substring "; 761e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(substring_, os); 762e35fdd936d133bf8a48de140a3c666897588a05shiqian } 763e35fdd936d133bf8a48de140a3c666897588a05shiqian 764e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 765e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "has no substring "; 766e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(substring_, os); 767e35fdd936d133bf8a48de140a3c666897588a05shiqian } 768e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 769e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType substring_; 770e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 771e35fdd936d133bf8a48de140a3c666897588a05shiqian 772e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic StartsWith(substring) matcher, which 773e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 774e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 775e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 776e35fdd936d133bf8a48de140a3c666897588a05shiqianclass StartsWithMatcher { 777e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 778e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 779e35fdd936d133bf8a48de140a3c666897588a05shiqian 780e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit StartsWithMatcher(const StringType& prefix) : prefix_(prefix) { 781e35fdd936d133bf8a48de140a3c666897588a05shiqian } 782e35fdd936d133bf8a48de140a3c666897588a05shiqian 783e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow StartsWith(prefix) to be used as a 784e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 785e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s starts with prefix_. 786e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(ConstCharPointer s) const { 787e35fdd936d133bf8a48de140a3c666897588a05shiqian return s != NULL && Matches(StringType(s)); 788e35fdd936d133bf8a48de140a3c666897588a05shiqian } 789e35fdd936d133bf8a48de140a3c666897588a05shiqian 790e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const StringType& s) const { 791e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.length() >= prefix_.length() && 792e35fdd936d133bf8a48de140a3c666897588a05shiqian s.substr(0, prefix_.length()) == prefix_; 793e35fdd936d133bf8a48de140a3c666897588a05shiqian } 794e35fdd936d133bf8a48de140a3c666897588a05shiqian 795e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 796e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "starts with "; 797e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(prefix_, os); 798e35fdd936d133bf8a48de140a3c666897588a05shiqian } 799e35fdd936d133bf8a48de140a3c666897588a05shiqian 800e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 801e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't start with "; 802e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(prefix_, os); 803e35fdd936d133bf8a48de140a3c666897588a05shiqian } 804e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 805e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType prefix_; 806e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 807e35fdd936d133bf8a48de140a3c666897588a05shiqian 808e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic EndsWith(substring) matcher, which 809e35fdd936d133bf8a48de140a3c666897588a05shiqian// can be used as a Matcher<T> as long as T can be converted to a 810e35fdd936d133bf8a48de140a3c666897588a05shiqian// string. 811e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename StringType> 812e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EndsWithMatcher { 813e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 814e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename StringType::const_pointer ConstCharPointer; 815e35fdd936d133bf8a48de140a3c666897588a05shiqian 816e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit EndsWithMatcher(const StringType& suffix) : suffix_(suffix) {} 817e35fdd936d133bf8a48de140a3c666897588a05shiqian 818e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow EndsWith(suffix) to be used as a 819e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<T> as long as T can be converted to string. Returns true 820e35fdd936d133bf8a48de140a3c666897588a05shiqian // iff s ends with suffix_. 821e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(ConstCharPointer s) const { 822e35fdd936d133bf8a48de140a3c666897588a05shiqian return s != NULL && Matches(StringType(s)); 823e35fdd936d133bf8a48de140a3c666897588a05shiqian } 824e35fdd936d133bf8a48de140a3c666897588a05shiqian 825e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const StringType& s) const { 826e35fdd936d133bf8a48de140a3c666897588a05shiqian return s.length() >= suffix_.length() && 827e35fdd936d133bf8a48de140a3c666897588a05shiqian s.substr(s.length() - suffix_.length()) == suffix_; 828e35fdd936d133bf8a48de140a3c666897588a05shiqian } 829e35fdd936d133bf8a48de140a3c666897588a05shiqian 830e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 831e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "ends with "; 832e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(suffix_, os); 833e35fdd936d133bf8a48de140a3c666897588a05shiqian } 834e35fdd936d133bf8a48de140a3c666897588a05shiqian 835e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 836e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't end with "; 837e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<StringType>::Print(suffix_, os); 838e35fdd936d133bf8a48de140a3c666897588a05shiqian } 839e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 840e35fdd936d133bf8a48de140a3c666897588a05shiqian const StringType suffix_; 841e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 842e35fdd936d133bf8a48de140a3c666897588a05shiqian 843e35fdd936d133bf8a48de140a3c666897588a05shiqian#if GMOCK_HAS_REGEX 844e35fdd936d133bf8a48de140a3c666897588a05shiqian 845e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements polymorphic matchers MatchesRegex(regex) and 846e35fdd936d133bf8a48de140a3c666897588a05shiqian// ContainsRegex(regex), which can be used as a Matcher<T> as long as 847e35fdd936d133bf8a48de140a3c666897588a05shiqian// T can be converted to a string. 848e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatchesRegexMatcher { 849e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 850e35fdd936d133bf8a48de140a3c666897588a05shiqian MatchesRegexMatcher(const RE* regex, bool full_match) 851e35fdd936d133bf8a48de140a3c666897588a05shiqian : regex_(regex), full_match_(full_match) {} 852e35fdd936d133bf8a48de140a3c666897588a05shiqian 853e35fdd936d133bf8a48de140a3c666897588a05shiqian // These overloaded methods allow MatchesRegex(regex) to be used as 854e35fdd936d133bf8a48de140a3c666897588a05shiqian // a Matcher<T> as long as T can be converted to string. Returns 855e35fdd936d133bf8a48de140a3c666897588a05shiqian // true iff s matches regular expression regex. When full_match_ is 856e35fdd936d133bf8a48de140a3c666897588a05shiqian // true, a full match is done; otherwise a partial match is done. 857e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const char* s) const { 858e35fdd936d133bf8a48de140a3c666897588a05shiqian return s != NULL && Matches(internal::string(s)); 859e35fdd936d133bf8a48de140a3c666897588a05shiqian } 860e35fdd936d133bf8a48de140a3c666897588a05shiqian 861e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const internal::string& s) const { 862e35fdd936d133bf8a48de140a3c666897588a05shiqian return full_match_ ? RE::FullMatch(s, *regex_) : 863e35fdd936d133bf8a48de140a3c666897588a05shiqian RE::PartialMatch(s, *regex_); 864e35fdd936d133bf8a48de140a3c666897588a05shiqian } 865e35fdd936d133bf8a48de140a3c666897588a05shiqian 866e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 867e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << (full_match_ ? "matches" : "contains") 868e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 869e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 870e35fdd936d133bf8a48de140a3c666897588a05shiqian } 871e35fdd936d133bf8a48de140a3c666897588a05shiqian 872e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 873e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't " << (full_match_ ? "match" : "contain") 874e35fdd936d133bf8a48de140a3c666897588a05shiqian << " regular expression "; 875e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<internal::string>::Print(regex_->pattern(), os); 876e35fdd936d133bf8a48de140a3c666897588a05shiqian } 877e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 878e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::linked_ptr<const RE> regex_; 879e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool full_match_; 880e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 881e35fdd936d133bf8a48de140a3c666897588a05shiqian 882e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GMOCK_HAS_REGEX 883e35fdd936d133bf8a48de140a3c666897588a05shiqian 884e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements a matcher that compares the two fields of a 2-tuple 885e35fdd936d133bf8a48de140a3c666897588a05shiqian// using one of the ==, <=, <, etc, operators. The two fields being 886e35fdd936d133bf8a48de140a3c666897588a05shiqian// compared don't have to have the same type. 887e35fdd936d133bf8a48de140a3c666897588a05shiqian// 888e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher defined here is polymorphic (for example, Eq() can be 889e35fdd936d133bf8a48de140a3c666897588a05shiqian// used to match a tuple<int, short>, a tuple<const long&, double>, 890e35fdd936d133bf8a48de140a3c666897588a05shiqian// etc). Therefore we use a template type conversion operator in the 891e35fdd936d133bf8a48de140a3c666897588a05shiqian// implementation. 892e35fdd936d133bf8a48de140a3c666897588a05shiqian// 893e35fdd936d133bf8a48de140a3c666897588a05shiqian// We define this as a macro in order to eliminate duplicated source 894e35fdd936d133bf8a48de140a3c666897588a05shiqian// code. 895e35fdd936d133bf8a48de140a3c666897588a05shiqian#define GMOCK_IMPLEMENT_COMPARISON2_MATCHER(name, op, relation) \ 896e35fdd936d133bf8a48de140a3c666897588a05shiqian class name##2Matcher { \ 897e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 898e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T1, typename T2> \ 899e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const ::std::tr1::tuple<T1, T2>&>() const { \ 900e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<T1, T2>); \ 901e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 902e35fdd936d133bf8a48de140a3c666897588a05shiqian private: \ 903e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T1, typename T2> \ 904e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<const ::std::tr1::tuple<T1, T2>&> { \ 905e35fdd936d133bf8a48de140a3c666897588a05shiqian public: \ 906e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(const ::std::tr1::tuple<T1, T2>& args) const { \ 907e35fdd936d133bf8a48de140a3c666897588a05shiqian return ::std::tr1::get<0>(args) op ::std::tr1::get<1>(args); \ 908e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 909e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { \ 910e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "argument #0 is " relation " argument #1"; \ 911e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 912e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { \ 913e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "argument #0 is not " relation " argument #1"; \ 914e35fdd936d133bf8a48de140a3c666897588a05shiqian } \ 915e35fdd936d133bf8a48de140a3c666897588a05shiqian }; \ 916e35fdd936d133bf8a48de140a3c666897588a05shiqian } 917e35fdd936d133bf8a48de140a3c666897588a05shiqian 918e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements Eq(), Ge(), Gt(), Le(), Lt(), and Ne() respectively. 919e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Eq, ==, "equal to"); 920e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Ge, >=, "greater than or equal to"); 921e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Gt, >, "greater than"); 922e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Le, <=, "less than or equal to"); 923e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Lt, <, "less than"); 924e35fdd936d133bf8a48de140a3c666897588a05shiqianGMOCK_IMPLEMENT_COMPARISON2_MATCHER(Ne, !=, "not equal to"); 925e35fdd936d133bf8a48de140a3c666897588a05shiqian 926e35fdd936d133bf8a48de140a3c666897588a05shiqian#undef GMOCK_IMPLEMENT_COMPARISON2_MATCHER 927e35fdd936d133bf8a48de140a3c666897588a05shiqian 928e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Not(m) matcher, which matches a value that doesn't 929e35fdd936d133bf8a48de140a3c666897588a05shiqian// match matcher m. 930e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 931e35fdd936d133bf8a48de140a3c666897588a05shiqianclass NotMatcher { 932e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 933e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit NotMatcher(InnerMatcher matcher) : matcher_(matcher) {} 934e35fdd936d133bf8a48de140a3c666897588a05shiqian 935e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows Not(m) to be used 936e35fdd936d133bf8a48de140a3c666897588a05shiqian // to match any type m can match. 937e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 938e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 939e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(matcher_)); 940e35fdd936d133bf8a48de140a3c666897588a05shiqian } 941e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 942e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements the Not(...) matcher for a particular argument type T. 943e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 944e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 945e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 946e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const Matcher<T>& matcher) : matcher_(matcher) {} 947e35fdd936d133bf8a48de140a3c666897588a05shiqian 948e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { 949e35fdd936d133bf8a48de140a3c666897588a05shiqian return !matcher_.Matches(x); 950e35fdd936d133bf8a48de140a3c666897588a05shiqian } 951e35fdd936d133bf8a48de140a3c666897588a05shiqian 952e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 953e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 954e35fdd936d133bf8a48de140a3c666897588a05shiqian } 955e35fdd936d133bf8a48de140a3c666897588a05shiqian 956e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 957e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 958e35fdd936d133bf8a48de140a3c666897588a05shiqian } 959e35fdd936d133bf8a48de140a3c666897588a05shiqian 960e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 961e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.ExplainMatchResultTo(x, os); 962e35fdd936d133bf8a48de140a3c666897588a05shiqian } 963e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 964e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<T> matcher_; 965e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 966e35fdd936d133bf8a48de140a3c666897588a05shiqian 967e35fdd936d133bf8a48de140a3c666897588a05shiqian InnerMatcher matcher_; 968e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 969e35fdd936d133bf8a48de140a3c666897588a05shiqian 970e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AllOf(m_1, ..., m_n) matcher, which 971e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches all of the matchers m_1, ..., and m_n. 972e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 973e35fdd936d133bf8a48de140a3c666897588a05shiqianclass BothOfMatcher { 974e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 975e35fdd936d133bf8a48de140a3c666897588a05shiqian BothOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 976e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 977e35fdd936d133bf8a48de140a3c666897588a05shiqian 978e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 979e35fdd936d133bf8a48de140a3c666897588a05shiqian // BothOfMatcher<Matcher1, Matcher2> object to match any type that 980e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 981e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 982e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 983e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(matcher1_, matcher2_)); 984e35fdd936d133bf8a48de140a3c666897588a05shiqian } 985e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 986e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements the AllOf(m1, m2) matcher for a particular argument 987e35fdd936d133bf8a48de140a3c666897588a05shiqian // type T. 988e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 989e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 990e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 991e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 992e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 993e35fdd936d133bf8a48de140a3c666897588a05shiqian 994e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { 995e35fdd936d133bf8a48de140a3c666897588a05shiqian return matcher1_.Matches(x) && matcher2_.Matches(x); 996e35fdd936d133bf8a48de140a3c666897588a05shiqian } 997e35fdd936d133bf8a48de140a3c666897588a05shiqian 998e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 999e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "("; 1000e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.DescribeTo(os); 1001e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ") and ("; 1002e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.DescribeTo(os); 1003e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ")"; 1004e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1005e35fdd936d133bf8a48de140a3c666897588a05shiqian 1006e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1007e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not "; 1008e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeTo(os); 1009e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1010e35fdd936d133bf8a48de140a3c666897588a05shiqian 1011e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 1012e35fdd936d133bf8a48de140a3c666897588a05shiqian if (Matches(x)) { 1013e35fdd936d133bf8a48de140a3c666897588a05shiqian // When both matcher1_ and matcher2_ match x, we need to 1014e35fdd936d133bf8a48de140a3c666897588a05shiqian // explain why *both* of them match. 1015e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss1; 1016e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.ExplainMatchResultTo(x, &ss1); 1017e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s1 = ss1.str(); 1018e35fdd936d133bf8a48de140a3c666897588a05shiqian 1019e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss2; 1020e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.ExplainMatchResultTo(x, &ss2); 1021e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s2 = ss2.str(); 1022e35fdd936d133bf8a48de140a3c666897588a05shiqian 1023e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s1 == "") { 1024e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << s2; 1025e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1026e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << s1; 1027e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s2 != "") { 1028e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "; " << s2; 1029e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1030e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1031e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1032e35fdd936d133bf8a48de140a3c666897588a05shiqian // Otherwise we only need to explain why *one* of them fails 1033e35fdd936d133bf8a48de140a3c666897588a05shiqian // to match. 1034e35fdd936d133bf8a48de140a3c666897588a05shiqian if (!matcher1_.Matches(x)) { 1035e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.ExplainMatchResultTo(x, os); 1036e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1037e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.ExplainMatchResultTo(x, os); 1038e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1039e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1040e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1041e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1042e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<T> matcher1_; 1043e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<T> matcher2_; 1044e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1045e35fdd936d133bf8a48de140a3c666897588a05shiqian 1046e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher1 matcher1_; 1047e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher2 matcher2_; 1048e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1049e35fdd936d133bf8a48de140a3c666897588a05shiqian 1050e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing the AnyOf(m_1, ..., m_n) matcher, which 1051e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a value that matches at least one of the matchers m_1, ..., 1052e35fdd936d133bf8a48de140a3c666897588a05shiqian// and m_n. 1053e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1054e35fdd936d133bf8a48de140a3c666897588a05shiqianclass EitherOfMatcher { 1055e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1056e35fdd936d133bf8a48de140a3c666897588a05shiqian EitherOfMatcher(Matcher1 matcher1, Matcher2 matcher2) 1057e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1058e35fdd936d133bf8a48de140a3c666897588a05shiqian 1059e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template type conversion operator allows a 1060e35fdd936d133bf8a48de140a3c666897588a05shiqian // EitherOfMatcher<Matcher1, Matcher2> object to match any type that 1061e35fdd936d133bf8a48de140a3c666897588a05shiqian // both Matcher1 and Matcher2 can match. 1062e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1063e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1064e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(matcher1_, matcher2_)); 1065e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1066e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1067e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements the AnyOf(m1, m2) matcher for a particular argument 1068e35fdd936d133bf8a48de140a3c666897588a05shiqian // type T. 1069e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1070e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1071e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1072e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(const Matcher<T>& matcher1, const Matcher<T>& matcher2) 1073e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher1_(matcher1), matcher2_(matcher2) {} 1074e35fdd936d133bf8a48de140a3c666897588a05shiqian 1075e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T x) const { 1076e35fdd936d133bf8a48de140a3c666897588a05shiqian return matcher1_.Matches(x) || matcher2_.Matches(x); 1077e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1078e35fdd936d133bf8a48de140a3c666897588a05shiqian 1079e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1080e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "("; 1081e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.DescribeTo(os); 1082e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ") or ("; 1083e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.DescribeTo(os); 1084e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << ")"; 1085e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1086e35fdd936d133bf8a48de140a3c666897588a05shiqian 1087e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1088e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "not "; 1089e35fdd936d133bf8a48de140a3c666897588a05shiqian DescribeTo(os); 1090e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1091e35fdd936d133bf8a48de140a3c666897588a05shiqian 1092e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T x, ::std::ostream* os) const { 1093e35fdd936d133bf8a48de140a3c666897588a05shiqian if (Matches(x)) { 1094e35fdd936d133bf8a48de140a3c666897588a05shiqian // If either matcher1_ or matcher2_ matches x, we just need 1095e35fdd936d133bf8a48de140a3c666897588a05shiqian // to explain why *one* of them matches. 1096e35fdd936d133bf8a48de140a3c666897588a05shiqian if (matcher1_.Matches(x)) { 1097e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.ExplainMatchResultTo(x, os); 1098e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1099e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.ExplainMatchResultTo(x, os); 1100e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1101e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1102e35fdd936d133bf8a48de140a3c666897588a05shiqian // Otherwise we need to explain why *neither* matches. 1103e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss1; 1104e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher1_.ExplainMatchResultTo(x, &ss1); 1105e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s1 = ss1.str(); 1106e35fdd936d133bf8a48de140a3c666897588a05shiqian 1107e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss2; 1108e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher2_.ExplainMatchResultTo(x, &ss2); 1109e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s2 = ss2.str(); 1110e35fdd936d133bf8a48de140a3c666897588a05shiqian 1111e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s1 == "") { 1112e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << s2; 1113e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1114e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << s1; 1115e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s2 != "") { 1116e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "; " << s2; 1117e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1118e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1119e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1120e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1121e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1122e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<T> matcher1_; 1123e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<T> matcher2_; 1124e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1125e35fdd936d133bf8a48de140a3c666897588a05shiqian 1126e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher1 matcher1_; 1127e35fdd936d133bf8a48de140a3c666897588a05shiqian Matcher2 matcher2_; 1128e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1129e35fdd936d133bf8a48de140a3c666897588a05shiqian 1130e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Truly(pred), which turns a predicate into a 1131e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher. 1132e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 1133e35fdd936d133bf8a48de140a3c666897588a05shiqianclass TrulyMatcher { 1134e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1135e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit TrulyMatcher(Predicate pred) : predicate_(pred) {} 1136e35fdd936d133bf8a48de140a3c666897588a05shiqian 1137e35fdd936d133bf8a48de140a3c666897588a05shiqian // This method template allows Truly(pred) to be used as a matcher 1138e35fdd936d133bf8a48de140a3c666897588a05shiqian // for type T where T is the argument type of predicate 'pred'. The 1139e35fdd936d133bf8a48de140a3c666897588a05shiqian // argument is passed by reference as the predicate may be 1140e35fdd936d133bf8a48de140a3c666897588a05shiqian // interested in the address of the argument. 1141e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1142e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(T& x) const { 1143e35fdd936d133bf8a48de140a3c666897588a05shiqian#ifdef GTEST_OS_WINDOWS 1144e35fdd936d133bf8a48de140a3c666897588a05shiqian // MSVC warns about converting a value into bool (warning 4800). 1145e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(push) // Saves the current warning state. 1146e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(disable:4800) // Temporarily disables warning 4800. 1147e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_OS_WINDOWS 1148e35fdd936d133bf8a48de140a3c666897588a05shiqian return predicate_(x); 1149e35fdd936d133bf8a48de140a3c666897588a05shiqian#ifdef GTEST_OS_WINDOWS 1150e35fdd936d133bf8a48de140a3c666897588a05shiqian#pragma warning(pop) // Restores the warning state. 1151e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_OS_WINDOWS 1152e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1153e35fdd936d133bf8a48de140a3c666897588a05shiqian 1154e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1155e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "satisfies the given predicate"; 1156e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1157e35fdd936d133bf8a48de140a3c666897588a05shiqian 1158e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1159e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "doesn't satisfy the given predicate"; 1160e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1161e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1162e35fdd936d133bf8a48de140a3c666897588a05shiqian Predicate predicate_; 1163e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1164e35fdd936d133bf8a48de140a3c666897588a05shiqian 1165e35fdd936d133bf8a48de140a3c666897588a05shiqian// Used for implementing Matches(matcher), which turns a matcher into 1166e35fdd936d133bf8a48de140a3c666897588a05shiqian// a predicate. 1167e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1168e35fdd936d133bf8a48de140a3c666897588a05shiqianclass MatcherAsPredicate { 1169e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1170e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit MatcherAsPredicate(M matcher) : matcher_(matcher) {} 1171e35fdd936d133bf8a48de140a3c666897588a05shiqian 1172e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template operator() allows Matches(m) to be used as a 1173e35fdd936d133bf8a48de140a3c666897588a05shiqian // predicate on type T where m is a matcher on type T. 1174e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1175e35fdd936d133bf8a48de140a3c666897588a05shiqian // The argument x is passed by reference instead of by value, as 1176e35fdd936d133bf8a48de140a3c666897588a05shiqian // some matcher may be interested in its address (e.g. as in 1177e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matches(Ref(n))(x)). 1178e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1179e35fdd936d133bf8a48de140a3c666897588a05shiqian bool operator()(const T& x) const { 1180e35fdd936d133bf8a48de140a3c666897588a05shiqian // We let matcher_ commit to a particular type here instead of 1181e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the MatcherAsPredicate object was constructed. This 1182e35fdd936d133bf8a48de140a3c666897588a05shiqian // allows us to write Matches(m) where m is a polymorphic matcher 1183e35fdd936d133bf8a48de140a3c666897588a05shiqian // (e.g. Eq(5)). 1184e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1185e35fdd936d133bf8a48de140a3c666897588a05shiqian // If we write Matcher<T>(matcher_).Matches(x) here, it won't 1186e35fdd936d133bf8a48de140a3c666897588a05shiqian // compile when matcher_ has type Matcher<const T&>; if we write 1187e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_).Matches(x) here, it won't compile 1188e35fdd936d133bf8a48de140a3c666897588a05shiqian // when matcher_ has type Matcher<T>; if we just write 1189e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_.Matches(x), it won't compile when matcher_ is 1190e35fdd936d133bf8a48de140a3c666897588a05shiqian // polymorphic, e.g. Eq(5). 1191e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1192e35fdd936d133bf8a48de140a3c666897588a05shiqian // MatcherCast<const T&>() is necessary for making the code work 1193e35fdd936d133bf8a48de140a3c666897588a05shiqian // in all of the above situations. 1194e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatcherCast<const T&>(matcher_).Matches(x); 1195e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1196e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1197e35fdd936d133bf8a48de140a3c666897588a05shiqian M matcher_; 1198e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1199e35fdd936d133bf8a48de140a3c666897588a05shiqian 1200e35fdd936d133bf8a48de140a3c666897588a05shiqian// For implementing ASSERT_THAT() and EXPECT_THAT(). The template 1201e35fdd936d133bf8a48de140a3c666897588a05shiqian// argument M must be a type that can be converted to a matcher. 1202e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1203e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PredicateFormatterFromMatcher { 1204e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1205e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PredicateFormatterFromMatcher(const M& m) : matcher_(m) {} 1206e35fdd936d133bf8a48de140a3c666897588a05shiqian 1207e35fdd936d133bf8a48de140a3c666897588a05shiqian // This template () operator allows a PredicateFormatterFromMatcher 1208e35fdd936d133bf8a48de140a3c666897588a05shiqian // object to act as a predicate-formatter suitable for using with 1209e35fdd936d133bf8a48de140a3c666897588a05shiqian // Google Test's EXPECT_PRED_FORMAT1() macro. 1210e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1211e35fdd936d133bf8a48de140a3c666897588a05shiqian AssertionResult operator()(const char* value_text, const T& x) const { 1212e35fdd936d133bf8a48de140a3c666897588a05shiqian // We convert matcher_ to a Matcher<const T&> *now* instead of 1213e35fdd936d133bf8a48de140a3c666897588a05shiqian // when the PredicateFormatterFromMatcher object was constructed, 1214e35fdd936d133bf8a48de140a3c666897588a05shiqian // as matcher_ may be polymorphic (e.g. NotNull()) and we won't 1215e35fdd936d133bf8a48de140a3c666897588a05shiqian // know which type to instantiate it to until we actually see the 1216e35fdd936d133bf8a48de140a3c666897588a05shiqian // type of x here. 1217e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1218e35fdd936d133bf8a48de140a3c666897588a05shiqian // We write MatcherCast<const T&>(matcher_) instead of 1219e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const T&>(matcher_), as the latter won't compile when 1220e35fdd936d133bf8a48de140a3c666897588a05shiqian // matcher_ has type Matcher<T> (e.g. An<int>()). 1221e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const T&> matcher = MatcherCast<const T&>(matcher_); 1222e35fdd936d133bf8a48de140a3c666897588a05shiqian if (matcher.Matches(x)) { 1223e35fdd936d133bf8a48de140a3c666897588a05shiqian return AssertionSuccess(); 1224e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1225e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss; 1226e35fdd936d133bf8a48de140a3c666897588a05shiqian ss << "Value of: " << value_text << "\n" 1227e35fdd936d133bf8a48de140a3c666897588a05shiqian << "Expected: "; 1228e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.DescribeTo(&ss); 1229e35fdd936d133bf8a48de140a3c666897588a05shiqian ss << "\n Actual: "; 1230e35fdd936d133bf8a48de140a3c666897588a05shiqian UniversalPrinter<T>::Print(x, &ss); 1231e35fdd936d133bf8a48de140a3c666897588a05shiqian ExplainMatchResultAsNeededTo<const T&>(matcher, x, &ss); 1232e35fdd936d133bf8a48de140a3c666897588a05shiqian return AssertionFailure(Message() << ss.str()); 1233e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1234e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1235e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1236e35fdd936d133bf8a48de140a3c666897588a05shiqian const M matcher_; 1237e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1238e35fdd936d133bf8a48de140a3c666897588a05shiqian 1239e35fdd936d133bf8a48de140a3c666897588a05shiqian// A helper function for converting a matcher to a predicate-formatter 1240e35fdd936d133bf8a48de140a3c666897588a05shiqian// without the user needing to explicitly write the type. This is 1241e35fdd936d133bf8a48de140a3c666897588a05shiqian// used for implementing ASSERT_THAT() and EXPECT_THAT(). 1242e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 1243e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PredicateFormatterFromMatcher<M> 1244e35fdd936d133bf8a48de140a3c666897588a05shiqianMakePredicateFormatterFromMatcher(const M& matcher) { 1245e35fdd936d133bf8a48de140a3c666897588a05shiqian return PredicateFormatterFromMatcher<M>(matcher); 1246e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1247e35fdd936d133bf8a48de140a3c666897588a05shiqian 1248e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the polymorphic floating point equality matcher, which 1249e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches two float values using ULP-based approximation. The 1250e35fdd936d133bf8a48de140a3c666897588a05shiqian// template is meant to be instantiated with FloatType being either 1251e35fdd936d133bf8a48de140a3c666897588a05shiqian// float or double. 1252e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename FloatType> 1253e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FloatingEqMatcher { 1254e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1255e35fdd936d133bf8a48de140a3c666897588a05shiqian // Constructor for FloatingEqMatcher. 1256e35fdd936d133bf8a48de140a3c666897588a05shiqian // The matcher's input will be compared with rhs. The matcher treats two 1257e35fdd936d133bf8a48de140a3c666897588a05shiqian // NANs as equal if nan_eq_nan is true. Otherwise, under IEEE standards, 1258e35fdd936d133bf8a48de140a3c666897588a05shiqian // equality comparisons between NANs will always return false. 1259e35fdd936d133bf8a48de140a3c666897588a05shiqian FloatingEqMatcher(FloatType rhs, bool nan_eq_nan) : 1260e35fdd936d133bf8a48de140a3c666897588a05shiqian rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} 1261e35fdd936d133bf8a48de140a3c666897588a05shiqian 1262e35fdd936d133bf8a48de140a3c666897588a05shiqian // Implements floating point equality matcher as a Matcher<T>. 1263e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1264e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1265e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1266e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(FloatType rhs, bool nan_eq_nan) : 1267e35fdd936d133bf8a48de140a3c666897588a05shiqian rhs_(rhs), nan_eq_nan_(nan_eq_nan) {} 1268e35fdd936d133bf8a48de140a3c666897588a05shiqian 1269e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T value) const { 1270e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatingPoint<FloatType> lhs(value), rhs(rhs_); 1271e35fdd936d133bf8a48de140a3c666897588a05shiqian 1272e35fdd936d133bf8a48de140a3c666897588a05shiqian // Compares NaNs first, if nan_eq_nan_ is true. 1273e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_ && lhs.is_nan()) { 1274e35fdd936d133bf8a48de140a3c666897588a05shiqian return rhs.is_nan(); 1275e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1276e35fdd936d133bf8a48de140a3c666897588a05shiqian 1277e35fdd936d133bf8a48de140a3c666897588a05shiqian return lhs.AlmostEquals(rhs); 1278e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1279e35fdd936d133bf8a48de140a3c666897588a05shiqian 1280e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1281e35fdd936d133bf8a48de140a3c666897588a05shiqian // os->precision() returns the previously set precision, which we 1282e35fdd936d133bf8a48de140a3c666897588a05shiqian // store to restore the ostream to its original configuration 1283e35fdd936d133bf8a48de140a3c666897588a05shiqian // after outputting. 1284e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1285e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1286e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1287e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1288e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is NaN"; 1289e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1290e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "never matches"; 1291e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1292e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1293e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is approximately " << rhs_; 1294e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1295e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1296e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1297e35fdd936d133bf8a48de140a3c666897588a05shiqian 1298e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1299e35fdd936d133bf8a48de140a3c666897588a05shiqian // As before, get original precision. 1300e35fdd936d133bf8a48de140a3c666897588a05shiqian const ::std::streamsize old_precision = os->precision( 1301e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::numeric_limits<FloatType>::digits10 + 2); 1302e35fdd936d133bf8a48de140a3c666897588a05shiqian if (FloatingPoint<FloatType>(rhs_).is_nan()) { 1303e35fdd936d133bf8a48de140a3c666897588a05shiqian if (nan_eq_nan_) { 1304e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is not NaN"; 1305e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1306e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is anything"; 1307e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1308e35fdd936d133bf8a48de140a3c666897588a05shiqian } else { 1309e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "is not approximately " << rhs_; 1310e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1311e35fdd936d133bf8a48de140a3c666897588a05shiqian // Restore original precision. 1312e35fdd936d133bf8a48de140a3c666897588a05shiqian os->precision(old_precision); 1313e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1314e35fdd936d133bf8a48de140a3c666897588a05shiqian 1315e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1316e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1317e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 1318e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1319e35fdd936d133bf8a48de140a3c666897588a05shiqian 1320e35fdd936d133bf8a48de140a3c666897588a05shiqian // The following 3 type conversion operators allow FloatEq(rhs) and 1321e35fdd936d133bf8a48de140a3c666897588a05shiqian // NanSensitiveFloatEq(rhs) to be used as a Matcher<float>, a 1322e35fdd936d133bf8a48de140a3c666897588a05shiqian // Matcher<const float&>, or a Matcher<float&>, but nothing else. 1323e35fdd936d133bf8a48de140a3c666897588a05shiqian // (While Google's C++ coding style doesn't allow arguments passed 1324e35fdd936d133bf8a48de140a3c666897588a05shiqian // by non-const reference, we may see them in code not conforming to 1325e35fdd936d133bf8a48de140a3c666897588a05shiqian // the style. Therefore Google Mock needs to support them.) 1326e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType>() const { 1327e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<FloatType>(rhs_, nan_eq_nan_)); 1328e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1329e35fdd936d133bf8a48de140a3c666897588a05shiqian 1330e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<const FloatType&>() const { 1331e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<const FloatType&>(rhs_, nan_eq_nan_)); 1332e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1333e35fdd936d133bf8a48de140a3c666897588a05shiqian 1334e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<FloatType&>() const { 1335e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<FloatType&>(rhs_, nan_eq_nan_)); 1336e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1337e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1338e35fdd936d133bf8a48de140a3c666897588a05shiqian const FloatType rhs_; 1339e35fdd936d133bf8a48de140a3c666897588a05shiqian const bool nan_eq_nan_; 1340e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1341e35fdd936d133bf8a48de140a3c666897588a05shiqian 1342e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Pointee(m) matcher for matching a pointer whose 1343e35fdd936d133bf8a48de140a3c666897588a05shiqian// pointee matches matcher m. The pointer can be either raw or smart. 1344e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1345e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PointeeMatcher { 1346e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1347e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit PointeeMatcher(const InnerMatcher& matcher) : matcher_(matcher) {} 1348e35fdd936d133bf8a48de140a3c666897588a05shiqian 1349e35fdd936d133bf8a48de140a3c666897588a05shiqian // This type conversion operator template allows Pointee(m) to be 1350e35fdd936d133bf8a48de140a3c666897588a05shiqian // used as a matcher for any pointer type whose pointee type is 1351e35fdd936d133bf8a48de140a3c666897588a05shiqian // compatible with the inner matcher, where type Pointer can be 1352e35fdd936d133bf8a48de140a3c666897588a05shiqian // either a raw pointer or a smart pointer. 1353e35fdd936d133bf8a48de140a3c666897588a05shiqian // 1354e35fdd936d133bf8a48de140a3c666897588a05shiqian // The reason we do this instead of relying on 1355e35fdd936d133bf8a48de140a3c666897588a05shiqian // MakePolymorphicMatcher() is that the latter is not flexible 1356e35fdd936d133bf8a48de140a3c666897588a05shiqian // enough for implementing the DescribeTo() method of Pointee(). 1357e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1358e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<Pointer>() const { 1359e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakeMatcher(new Impl<Pointer>(matcher_)); 1360e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1361e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1362e35fdd936d133bf8a48de140a3c666897588a05shiqian // The monomorphic implementation that works for a particular pointer type. 1363e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename Pointer> 1364e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<Pointer> { 1365e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1366e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename PointeeOf<GMOCK_REMOVE_CONST( // NOLINT 1367e35fdd936d133bf8a48de140a3c666897588a05shiqian GMOCK_REMOVE_REFERENCE(Pointer))>::type Pointee; 1368e35fdd936d133bf8a48de140a3c666897588a05shiqian 1369e35fdd936d133bf8a48de140a3c666897588a05shiqian explicit Impl(const InnerMatcher& matcher) 1370e35fdd936d133bf8a48de140a3c666897588a05shiqian : matcher_(MatcherCast<const Pointee&>(matcher)) {} 1371e35fdd936d133bf8a48de140a3c666897588a05shiqian 1372e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(Pointer p) const { 1373e35fdd936d133bf8a48de140a3c666897588a05shiqian return GetRawPointer(p) != NULL && matcher_.Matches(*p); 1374e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1375e35fdd936d133bf8a48de140a3c666897588a05shiqian 1376e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1377e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "points to a value that "; 1378e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1379e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1380e35fdd936d133bf8a48de140a3c666897588a05shiqian 1381e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1382e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "does not point to a value that "; 1383e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1384e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1385e35fdd936d133bf8a48de140a3c666897588a05shiqian 1386e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(Pointer pointer, 1387e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::ostream* os) const { 1388e35fdd936d133bf8a48de140a3c666897588a05shiqian if (GetRawPointer(pointer) == NULL) 1389e35fdd936d133bf8a48de140a3c666897588a05shiqian return; 1390e35fdd936d133bf8a48de140a3c666897588a05shiqian 1391e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss; 1392e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.ExplainMatchResultTo(*pointer, &ss); 1393e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s = ss.str(); 1394e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s != "") { 1395e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "points to a value that " << s; 1396e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1397e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1398e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1399e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const Pointee&> matcher_; 1400e35fdd936d133bf8a48de140a3c666897588a05shiqian }; 1401e35fdd936d133bf8a48de140a3c666897588a05shiqian 1402e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher matcher_; 1403e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1404e35fdd936d133bf8a48de140a3c666897588a05shiqian 1405e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Field() matcher for matching a field (i.e. member 1406e35fdd936d133bf8a48de140a3c666897588a05shiqian// variable) of an object. 1407e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType> 1408e35fdd936d133bf8a48de140a3c666897588a05shiqianclass FieldMatcher { 1409e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1410e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldMatcher(FieldType Class::*field, 1411e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&>& matcher) 1412e35fdd936d133bf8a48de140a3c666897588a05shiqian : field_(field), matcher_(matcher) {} 1413e35fdd936d133bf8a48de140a3c666897588a05shiqian 1414e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff the inner matcher matches obj.field. 1415e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const Class& obj) const { 1416e35fdd936d133bf8a48de140a3c666897588a05shiqian return matcher_.Matches(obj.*field_); 1417e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1418e35fdd936d133bf8a48de140a3c666897588a05shiqian 1419e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff the inner matcher matches obj->field. 1420e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const Class* p) const { 1421e35fdd936d133bf8a48de140a3c666897588a05shiqian return (p != NULL) && matcher_.Matches(p->*field_); 1422e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1423e35fdd936d133bf8a48de140a3c666897588a05shiqian 1424e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1425e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given field "; 1426e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1427e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1428e35fdd936d133bf8a48de140a3c666897588a05shiqian 1429e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1430e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given field "; 1431e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1432e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1433e35fdd936d133bf8a48de140a3c666897588a05shiqian 1434e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(const Class& obj, ::std::ostream* os) const { 1435e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss; 1436e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.ExplainMatchResultTo(obj.*field_, &ss); 1437e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s = ss.str(); 1438e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s != "") { 1439e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given field " << s; 1440e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1441e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1442e35fdd936d133bf8a48de140a3c666897588a05shiqian 1443e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(const Class* p, ::std::ostream* os) const { 1444e35fdd936d133bf8a48de140a3c666897588a05shiqian if (p != NULL) { 1445e35fdd936d133bf8a48de140a3c666897588a05shiqian ExplainMatchResultTo(*p, os); 1446e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1447e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1448e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1449e35fdd936d133bf8a48de140a3c666897588a05shiqian const FieldType Class::*field_; 1450e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<const FieldType&> matcher_; 1451e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1452e35fdd936d133bf8a48de140a3c666897588a05shiqian 1453e35fdd936d133bf8a48de140a3c666897588a05shiqian// Explains the result of matching an object against a field matcher. 1454e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType> 1455e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultTo(const FieldMatcher<Class, FieldType>& matcher, 1456e35fdd936d133bf8a48de140a3c666897588a05shiqian const Class& obj, ::std::ostream* os) { 1457e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(obj, os); 1458e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1459e35fdd936d133bf8a48de140a3c666897588a05shiqian 1460e35fdd936d133bf8a48de140a3c666897588a05shiqian// Explains the result of matching a pointer against a field matcher. 1461e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType> 1462e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultTo(const FieldMatcher<Class, FieldType>& matcher, 1463e35fdd936d133bf8a48de140a3c666897588a05shiqian const Class* p, ::std::ostream* os) { 1464e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(p, os); 1465e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1466e35fdd936d133bf8a48de140a3c666897588a05shiqian 1467e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the Property() matcher for matching a property 1468e35fdd936d133bf8a48de140a3c666897588a05shiqian// (i.e. return value of a getter method) of an object. 1469e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType> 1470e35fdd936d133bf8a48de140a3c666897588a05shiqianclass PropertyMatcher { 1471e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1472e35fdd936d133bf8a48de140a3c666897588a05shiqian // The property may have a reference type, so 'const PropertyType&' 1473e35fdd936d133bf8a48de140a3c666897588a05shiqian // may cause double references and fail to compile. That's why we 1474e35fdd936d133bf8a48de140a3c666897588a05shiqian // need GMOCK_REFERENCE_TO_CONST, which works regardless of 1475e35fdd936d133bf8a48de140a3c666897588a05shiqian // PropertyType being a reference or not. 1476e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef GMOCK_REFERENCE_TO_CONST(PropertyType) RefToConstProperty; 1477e35fdd936d133bf8a48de140a3c666897588a05shiqian 1478e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyMatcher(PropertyType (Class::*property)() const, 1479e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty>& matcher) 1480e35fdd936d133bf8a48de140a3c666897588a05shiqian : property_(property), matcher_(matcher) {} 1481e35fdd936d133bf8a48de140a3c666897588a05shiqian 1482e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff obj.property() matches the inner matcher. 1483e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const Class& obj) const { 1484e35fdd936d133bf8a48de140a3c666897588a05shiqian return matcher_.Matches((obj.*property_)()); 1485e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1486e35fdd936d133bf8a48de140a3c666897588a05shiqian 1487e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff p->property() matches the inner matcher. 1488e35fdd936d133bf8a48de140a3c666897588a05shiqian bool Matches(const Class* p) const { 1489e35fdd936d133bf8a48de140a3c666897588a05shiqian return (p != NULL) && matcher_.Matches((p->*property_)()); 1490e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1491e35fdd936d133bf8a48de140a3c666897588a05shiqian 1492e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeTo(::std::ostream* os) const { 1493e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given property "; 1494e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1495e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1496e35fdd936d133bf8a48de140a3c666897588a05shiqian 1497e35fdd936d133bf8a48de140a3c666897588a05shiqian void DescribeNegationTo(::std::ostream* os) const { 1498e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given property "; 1499e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1500e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1501e35fdd936d133bf8a48de140a3c666897588a05shiqian 1502e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(const Class& obj, ::std::ostream* os) const { 1503e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss; 1504e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.ExplainMatchResultTo((obj.*property_)(), &ss); 1505e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s = ss.str(); 1506e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s != "") { 1507e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "the given property " << s; 1508e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1509e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1510e35fdd936d133bf8a48de140a3c666897588a05shiqian 1511e35fdd936d133bf8a48de140a3c666897588a05shiqian void ExplainMatchResultTo(const Class* p, ::std::ostream* os) const { 1512e35fdd936d133bf8a48de140a3c666897588a05shiqian if (p != NULL) { 1513e35fdd936d133bf8a48de140a3c666897588a05shiqian ExplainMatchResultTo(*p, os); 1514e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1515e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1516e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1517e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property_)() const; 1518e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<RefToConstProperty> matcher_; 1519e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1520e35fdd936d133bf8a48de140a3c666897588a05shiqian 1521e35fdd936d133bf8a48de140a3c666897588a05shiqian// Explains the result of matching an object against a property matcher. 1522e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType> 1523e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultTo(const PropertyMatcher<Class, PropertyType>& matcher, 1524e35fdd936d133bf8a48de140a3c666897588a05shiqian const Class& obj, ::std::ostream* os) { 1525e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(obj, os); 1526e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1527e35fdd936d133bf8a48de140a3c666897588a05shiqian 1528e35fdd936d133bf8a48de140a3c666897588a05shiqian// Explains the result of matching a pointer against a property matcher. 1529e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType> 1530e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultTo(const PropertyMatcher<Class, PropertyType>& matcher, 1531e35fdd936d133bf8a48de140a3c666897588a05shiqian const Class* p, ::std::ostream* os) { 1532e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(p, os); 1533e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1534e35fdd936d133bf8a48de140a3c666897588a05shiqian 1535e35fdd936d133bf8a48de140a3c666897588a05shiqian// Type traits specifying various features of different functors for ResultOf. 1536e35fdd936d133bf8a48de140a3c666897588a05shiqian// The default template specifies features for functor objects. 1537e35fdd936d133bf8a48de140a3c666897588a05shiqian// Functor classes have to typedef argument_type and result_type 1538e35fdd936d133bf8a48de140a3c666897588a05shiqian// to be compatible with ResultOf. 1539e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Functor> 1540e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits { 1541e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename Functor::result_type ResultType; 1542e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef Functor StorageType; 1543e35fdd936d133bf8a48de140a3c666897588a05shiqian 1544e35fdd936d133bf8a48de140a3c666897588a05shiqian static void CheckIsValid(Functor functor) {} 1545e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1546e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResultType Invoke(Functor f, T arg) { return f(arg); } 1547e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1548e35fdd936d133bf8a48de140a3c666897588a05shiqian 1549e35fdd936d133bf8a48de140a3c666897588a05shiqian// Specialization for function pointers. 1550e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename ArgType, typename ResType> 1551e35fdd936d133bf8a48de140a3c666897588a05shiqianstruct CallableTraits<ResType(*)(ArgType)> { 1552e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType ResultType; 1553e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef ResType(*StorageType)(ArgType); 1554e35fdd936d133bf8a48de140a3c666897588a05shiqian 1555e35fdd936d133bf8a48de140a3c666897588a05shiqian static void CheckIsValid(ResType(*f)(ArgType)) { 1556e35fdd936d133bf8a48de140a3c666897588a05shiqian GMOCK_CHECK_(f != NULL) 1557e35fdd936d133bf8a48de140a3c666897588a05shiqian << "NULL function pointer is passed into ResultOf()."; 1558e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1559e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1560e35fdd936d133bf8a48de140a3c666897588a05shiqian static ResType Invoke(ResType(*f)(ArgType), T arg) { 1561e35fdd936d133bf8a48de140a3c666897588a05shiqian return (*f)(arg); 1562e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1563e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1564e35fdd936d133bf8a48de140a3c666897588a05shiqian 1565e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements the ResultOf() matcher for matching a return value of a 1566e35fdd936d133bf8a48de140a3c666897588a05shiqian// unary function of an object. 1567e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable> 1568e35fdd936d133bf8a48de140a3c666897588a05shiqianclass ResultOfMatcher { 1569e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1570e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::ResultType ResultType; 1571e35fdd936d133bf8a48de140a3c666897588a05shiqian 1572e35fdd936d133bf8a48de140a3c666897588a05shiqian ResultOfMatcher(Callable callable, const Matcher<ResultType>& matcher) 1573e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) { 1574e35fdd936d133bf8a48de140a3c666897588a05shiqian CallableTraits<Callable>::CheckIsValid(callable_); 1575e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1576e35fdd936d133bf8a48de140a3c666897588a05shiqian 1577e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1578e35fdd936d133bf8a48de140a3c666897588a05shiqian operator Matcher<T>() const { 1579e35fdd936d133bf8a48de140a3c666897588a05shiqian return Matcher<T>(new Impl<T>(callable_, matcher_)); 1580e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1581e35fdd936d133bf8a48de140a3c666897588a05shiqian 1582e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1583e35fdd936d133bf8a48de140a3c666897588a05shiqian typedef typename CallableTraits<Callable>::StorageType CallableStorageType; 1584e35fdd936d133bf8a48de140a3c666897588a05shiqian 1585e35fdd936d133bf8a48de140a3c666897588a05shiqian template <typename T> 1586e35fdd936d133bf8a48de140a3c666897588a05shiqian class Impl : public MatcherInterface<T> { 1587e35fdd936d133bf8a48de140a3c666897588a05shiqian public: 1588e35fdd936d133bf8a48de140a3c666897588a05shiqian Impl(CallableStorageType callable, const Matcher<ResultType>& matcher) 1589e35fdd936d133bf8a48de140a3c666897588a05shiqian : callable_(callable), matcher_(matcher) {} 1590e35fdd936d133bf8a48de140a3c666897588a05shiqian // Returns true iff callable_(obj) matches the inner matcher. 1591e35fdd936d133bf8a48de140a3c666897588a05shiqian // The calling syntax is different for different types of callables 1592e35fdd936d133bf8a48de140a3c666897588a05shiqian // so we abstract it in CallableTraits<Callable>::Invoke(). 1593e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual bool Matches(T obj) const { 1594e35fdd936d133bf8a48de140a3c666897588a05shiqian return matcher_.Matches( 1595e35fdd936d133bf8a48de140a3c666897588a05shiqian CallableTraits<Callable>::template Invoke<T>(callable_, obj)); 1596e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1597e35fdd936d133bf8a48de140a3c666897588a05shiqian 1598e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeTo(::std::ostream* os) const { 1599e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "result of the given callable "; 1600e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeTo(os); 1601e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1602e35fdd936d133bf8a48de140a3c666897588a05shiqian 1603e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void DescribeNegationTo(::std::ostream* os) const { 1604e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "result of the given callable "; 1605e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.DescribeNegationTo(os); 1606e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1607e35fdd936d133bf8a48de140a3c666897588a05shiqian 1608e35fdd936d133bf8a48de140a3c666897588a05shiqian virtual void ExplainMatchResultTo(T obj, ::std::ostream* os) const { 1609e35fdd936d133bf8a48de140a3c666897588a05shiqian ::std::stringstream ss; 1610e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher_.ExplainMatchResultTo( 1611e35fdd936d133bf8a48de140a3c666897588a05shiqian CallableTraits<Callable>::template Invoke<T>(callable_, obj), 1612e35fdd936d133bf8a48de140a3c666897588a05shiqian &ss); 1613e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string s = ss.str(); 1614e35fdd936d133bf8a48de140a3c666897588a05shiqian if (s != "") 1615e35fdd936d133bf8a48de140a3c666897588a05shiqian *os << "result of the given callable " << s; 1616e35fdd936d133bf8a48de140a3c666897588a05shiqian } 1617e35fdd936d133bf8a48de140a3c666897588a05shiqian private: 1618e35fdd936d133bf8a48de140a3c666897588a05shiqian // Functors often define operator() as non-const method even though 1619e35fdd936d133bf8a48de140a3c666897588a05shiqian // they are actualy stateless. But we need to use them even when 1620e35fdd936d133bf8a48de140a3c666897588a05shiqian // 'this' is a const pointer. It's the user's responsibility not to 1621e35fdd936d133bf8a48de140a3c666897588a05shiqian // use stateful callables with ResultOf(), which does't guarantee 1622e35fdd936d133bf8a48de140a3c666897588a05shiqian // how many times the callable will be invoked. 1623e35fdd936d133bf8a48de140a3c666897588a05shiqian mutable CallableStorageType callable_; 1624e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 1625e35fdd936d133bf8a48de140a3c666897588a05shiqian }; // class Impl 1626e35fdd936d133bf8a48de140a3c666897588a05shiqian 1627e35fdd936d133bf8a48de140a3c666897588a05shiqian const CallableStorageType callable_; 1628e35fdd936d133bf8a48de140a3c666897588a05shiqian const Matcher<ResultType> matcher_; 1629e35fdd936d133bf8a48de140a3c666897588a05shiqian}; 1630e35fdd936d133bf8a48de140a3c666897588a05shiqian 1631e35fdd936d133bf8a48de140a3c666897588a05shiqian// Explains the result of matching a value against a functor matcher. 1632e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename Callable> 1633e35fdd936d133bf8a48de140a3c666897588a05shiqianvoid ExplainMatchResultTo(const ResultOfMatcher<Callable>& matcher, 1634e35fdd936d133bf8a48de140a3c666897588a05shiqian T obj, ::std::ostream* os) { 1635e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher.ExplainMatchResultTo(obj, os); 1636e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1637e35fdd936d133bf8a48de140a3c666897588a05shiqian 1638e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace internal 1639e35fdd936d133bf8a48de140a3c666897588a05shiqian 1640e35fdd936d133bf8a48de140a3c666897588a05shiqian// Implements MatcherCast(). 1641e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T, typename M> 1642e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> MatcherCast(M matcher) { 1643e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::MatcherCastImpl<T, M>::Cast(matcher); 1644e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1645e35fdd936d133bf8a48de140a3c666897588a05shiqian 1646e35fdd936d133bf8a48de140a3c666897588a05shiqian// _ is a matcher that matches anything of any type. 1647e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1648e35fdd936d133bf8a48de140a3c666897588a05shiqian// This definition is fine as: 1649e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1650e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1. The C++ standard permits using the name _ in a namespace that 1651e35fdd936d133bf8a48de140a3c666897588a05shiqian// is not the global namespace or ::std. 1652e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2. The AnythingMatcher class has no data member or constructor, 1653e35fdd936d133bf8a48de140a3c666897588a05shiqian// so it's OK to create global variables of this type. 1654e35fdd936d133bf8a48de140a3c666897588a05shiqian// 3. c-style has approved of using _ in this case. 1655e35fdd936d133bf8a48de140a3c666897588a05shiqianconst internal::AnythingMatcher _ = {}; 1656e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 1657e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 1658e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> A() { return MakeMatcher(new internal::AnyMatcherImpl<T>()); } 1659e35fdd936d133bf8a48de140a3c666897588a05shiqian 1660e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of the given type T. 1661e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 1662e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<T> An() { return A<T>(); } 1663e35fdd936d133bf8a48de140a3c666897588a05shiqian 1664e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything equal to x. 1665e35fdd936d133bf8a48de140a3c666897588a05shiqian// Note: if the parameter of Eq() were declared as const T&, Eq("foo") 1666e35fdd936d133bf8a48de140a3c666897588a05shiqian// wouldn't compile. 1667e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 1668e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EqMatcher<T> Eq(T x) { return internal::EqMatcher<T>(x); } 1669e35fdd936d133bf8a48de140a3c666897588a05shiqian 1670e35fdd936d133bf8a48de140a3c666897588a05shiqian// Constructs a Matcher<T> from a 'value' of type T. The constructed 1671e35fdd936d133bf8a48de140a3c666897588a05shiqian// matcher matches any value that's equal to 'value'. 1672e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 1673e35fdd936d133bf8a48de140a3c666897588a05shiqianMatcher<T>::Matcher(T value) { *this = Eq(value); } 1674e35fdd936d133bf8a48de140a3c666897588a05shiqian 1675e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a monomorphic matcher that matches anything with type Lhs 1676e35fdd936d133bf8a48de140a3c666897588a05shiqian// and equal to rhs. A user may need to use this instead of Eq(...) 1677e35fdd936d133bf8a48de140a3c666897588a05shiqian// in order to resolve an overloading ambiguity. 1678e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1679e35fdd936d133bf8a48de140a3c666897588a05shiqian// TypedEq<T>(x) is just a convenient short-hand for Matcher<T>(Eq(x)) 1680e35fdd936d133bf8a48de140a3c666897588a05shiqian// or Matcher<T>(x), but more readable than the latter. 1681e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1682e35fdd936d133bf8a48de140a3c666897588a05shiqian// We could define similar monomorphic matchers for other comparison 1683e35fdd936d133bf8a48de140a3c666897588a05shiqian// operations (e.g. TypedLt, TypedGe, and etc), but decided not to do 1684e35fdd936d133bf8a48de140a3c666897588a05shiqian// it yet as those are used much less than Eq() in practice. A user 1685e35fdd936d133bf8a48de140a3c666897588a05shiqian// can always write Matcher<T>(Lt(5)) to be explicit about the type, 1686e35fdd936d133bf8a48de140a3c666897588a05shiqian// for example. 1687e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Lhs, typename Rhs> 1688e35fdd936d133bf8a48de140a3c666897588a05shiqianinline Matcher<Lhs> TypedEq(const Rhs& rhs) { return Eq(rhs); } 1689e35fdd936d133bf8a48de140a3c666897588a05shiqian 1690e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything >= x. 1691e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 1692e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GeMatcher<Rhs> Ge(Rhs x) { 1693e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GeMatcher<Rhs>(x); 1694e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1695e35fdd936d133bf8a48de140a3c666897588a05shiqian 1696e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything > x. 1697e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 1698e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::GtMatcher<Rhs> Gt(Rhs x) { 1699e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::GtMatcher<Rhs>(x); 1700e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1701e35fdd936d133bf8a48de140a3c666897588a05shiqian 1702e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything <= x. 1703e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 1704e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LeMatcher<Rhs> Le(Rhs x) { 1705e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LeMatcher<Rhs>(x); 1706e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1707e35fdd936d133bf8a48de140a3c666897588a05shiqian 1708e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything < x. 1709e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 1710e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::LtMatcher<Rhs> Lt(Rhs x) { 1711e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::LtMatcher<Rhs>(x); 1712e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1713e35fdd936d133bf8a48de140a3c666897588a05shiqian 1714e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches anything != x. 1715e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Rhs> 1716e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NeMatcher<Rhs> Ne(Rhs x) { 1717e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NeMatcher<Rhs>(x); 1718e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1719e35fdd936d133bf8a48de140a3c666897588a05shiqian 1720e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any non-NULL pointer. 1721e35fdd936d133bf8a48de140a3c666897588a05shiqian// This is convenient as Not(NULL) doesn't compile (the compiler 1722e35fdd936d133bf8a48de140a3c666897588a05shiqian// thinks that that expression is comparing a pointer with an integer). 1723e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::NotNullMatcher > NotNull() { 1724e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::NotNullMatcher()); 1725e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1726e35fdd936d133bf8a48de140a3c666897588a05shiqian 1727e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches any argument that 1728e35fdd936d133bf8a48de140a3c666897588a05shiqian// references variable x. 1729e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename T> 1730e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::RefMatcher<T&> Ref(T& x) { // NOLINT 1731e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::RefMatcher<T&>(x); 1732e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1733e35fdd936d133bf8a48de140a3c666897588a05shiqian 1734e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 1735e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 1736e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> DoubleEq(double rhs) { 1737e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, false); 1738e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1739e35fdd936d133bf8a48de140a3c666897588a05shiqian 1740e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 1741e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 1742e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<double> NanSensitiveDoubleEq(double rhs) { 1743e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<double>(rhs, true); 1744e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1745e35fdd936d133bf8a48de140a3c666897588a05shiqian 1746e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any float argument approximately 1747e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, where two NANs are considered unequal. 1748e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> FloatEq(float rhs) { 1749e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, false); 1750e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1751e35fdd936d133bf8a48de140a3c666897588a05shiqian 1752e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any double argument approximately 1753e35fdd936d133bf8a48de140a3c666897588a05shiqian// equal to rhs, including NaN values when rhs is NaN. 1754e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::FloatingEqMatcher<float> NanSensitiveFloatEq(float rhs) { 1755e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::FloatingEqMatcher<float>(rhs, true); 1756e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1757e35fdd936d133bf8a48de140a3c666897588a05shiqian 1758e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches a pointer (raw or smart) that points 1759e35fdd936d133bf8a48de140a3c666897588a05shiqian// to a value that matches inner_matcher. 1760e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1761e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::PointeeMatcher<InnerMatcher> Pointee( 1762e35fdd936d133bf8a48de140a3c666897588a05shiqian const InnerMatcher& inner_matcher) { 1763e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::PointeeMatcher<InnerMatcher>(inner_matcher); 1764e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1765e35fdd936d133bf8a48de140a3c666897588a05shiqian 1766e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given field matches 1767e35fdd936d133bf8a48de140a3c666897588a05shiqian// 'matcher'. For example, 1768e35fdd936d133bf8a48de140a3c666897588a05shiqian// Field(&Foo::number, Ge(5)) 1769e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.number >= 5. 1770e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename FieldType, typename FieldMatcher> 1771e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 1772e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType> > Field( 1773e35fdd936d133bf8a48de140a3c666897588a05shiqian FieldType Class::*field, const FieldMatcher& matcher) { 1774e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 1775e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::FieldMatcher<Class, FieldType>( 1776e35fdd936d133bf8a48de140a3c666897588a05shiqian field, MatcherCast<const FieldType&>(matcher))); 1777e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 1778e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 1779e35fdd936d133bf8a48de140a3c666897588a05shiqian // Field(&Foo::bar, m) 1780e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar is an int32 and m is a matcher for int64. 1781e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1782e35fdd936d133bf8a48de140a3c666897588a05shiqian 1783e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object whose given property 1784e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches 'matcher'. For example, 1785e35fdd936d133bf8a48de140a3c666897588a05shiqian// Property(&Foo::str, StartsWith("hi")) 1786e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff x.str() starts with "hi". 1787e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Class, typename PropertyType, typename PropertyMatcher> 1788e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher< 1789e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType> > Property( 1790e35fdd936d133bf8a48de140a3c666897588a05shiqian PropertyType (Class::*property)() const, const PropertyMatcher& matcher) { 1791e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher( 1792e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::PropertyMatcher<Class, PropertyType>( 1793e35fdd936d133bf8a48de140a3c666897588a05shiqian property, 1794e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherCast<GMOCK_REFERENCE_TO_CONST(PropertyType)>(matcher))); 1795e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 1796e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 1797e35fdd936d133bf8a48de140a3c666897588a05shiqian // Property(&Foo::bar, m) 1798e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where bar() returns an int32 and m is a matcher for int64. 1799e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1800e35fdd936d133bf8a48de140a3c666897588a05shiqian 1801e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches an object iff the result of applying 1802e35fdd936d133bf8a48de140a3c666897588a05shiqian// a callable to x matches 'matcher'. 1803e35fdd936d133bf8a48de140a3c666897588a05shiqian// For example, 1804e35fdd936d133bf8a48de140a3c666897588a05shiqian// ResultOf(f, StartsWith("hi")) 1805e35fdd936d133bf8a48de140a3c666897588a05shiqian// matches a Foo object x iff f(x) starts with "hi". 1806e35fdd936d133bf8a48de140a3c666897588a05shiqian// callable parameter can be a function, function pointer, or a functor. 1807e35fdd936d133bf8a48de140a3c666897588a05shiqian// Callable has to satisfy the following conditions: 1808e35fdd936d133bf8a48de140a3c666897588a05shiqian// * It is required to keep no state affecting the results of 1809e35fdd936d133bf8a48de140a3c666897588a05shiqian// the calls on it and make no assumptions about how many calls 1810e35fdd936d133bf8a48de140a3c666897588a05shiqian// will be made. Any state it keeps must be protected from the 1811e35fdd936d133bf8a48de140a3c666897588a05shiqian// concurrent access. 1812e35fdd936d133bf8a48de140a3c666897588a05shiqian// * If it is a function object, it has to define type result_type. 1813e35fdd936d133bf8a48de140a3c666897588a05shiqian// We recommend deriving your functor classes from std::unary_function. 1814e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Callable, typename ResultOfMatcher> 1815e35fdd936d133bf8a48de140a3c666897588a05shiqianinternal::ResultOfMatcher<Callable> ResultOf( 1816e35fdd936d133bf8a48de140a3c666897588a05shiqian Callable callable, const ResultOfMatcher& matcher) { 1817e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::ResultOfMatcher<Callable>( 1818e35fdd936d133bf8a48de140a3c666897588a05shiqian callable, 1819e35fdd936d133bf8a48de140a3c666897588a05shiqian MatcherCast<typename internal::CallableTraits<Callable>::ResultType>( 1820e35fdd936d133bf8a48de140a3c666897588a05shiqian matcher)); 1821e35fdd936d133bf8a48de140a3c666897588a05shiqian // The call to MatcherCast() is required for supporting inner 1822e35fdd936d133bf8a48de140a3c666897588a05shiqian // matchers of compatible types. For example, it allows 1823e35fdd936d133bf8a48de140a3c666897588a05shiqian // ResultOf(Function, m) 1824e35fdd936d133bf8a48de140a3c666897588a05shiqian // to compile where Function() returns an int32 and m is a matcher for int64. 1825e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1826e35fdd936d133bf8a48de140a3c666897588a05shiqian 1827e35fdd936d133bf8a48de140a3c666897588a05shiqian// String matchers. 1828e35fdd936d133bf8a48de140a3c666897588a05shiqian 1829e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 1830e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 1831e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::string& str) { 1832e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 1833e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 1834e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1835e35fdd936d133bf8a48de140a3c666897588a05shiqian 1836e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 1837e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 1838e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::string& str) { 1839e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 1840e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 1841e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1842e35fdd936d133bf8a48de140a3c666897588a05shiqian 1843e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 1844e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 1845e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::string& str) { 1846e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 1847e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 1848e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1849e35fdd936d133bf8a48de140a3c666897588a05shiqian 1850e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 1851e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::string> > 1852e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::string& str) { 1853e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::string>( 1854e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 1855e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1856e35fdd936d133bf8a48de140a3c666897588a05shiqian 1857e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any string, std::string, or C string 1858e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 1859e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::string> > 1860e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::string& substring) { 1861e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::string>( 1862e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 1863e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1864e35fdd936d133bf8a48de140a3c666897588a05shiqian 1865e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 1866e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::string> > 1867e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::string& prefix) { 1868e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::string>( 1869e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 1870e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1871e35fdd936d133bf8a48de140a3c666897588a05shiqian 1872e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 1873e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> > 1874e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::string& suffix) { 1875e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::string>( 1876e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 1877e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1878e35fdd936d133bf8a48de140a3c666897588a05shiqian 1879e35fdd936d133bf8a48de140a3c666897588a05shiqian#ifdef GMOCK_HAS_REGEX 1880e35fdd936d133bf8a48de140a3c666897588a05shiqian 1881e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that fully matches regular expression 'regex'. 1882e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 1883e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 1884e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 1885e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, true)); 1886e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1887e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex( 1888e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 1889e35fdd936d133bf8a48de140a3c666897588a05shiqian return MatchesRegex(new internal::RE(regex)); 1890e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1891e35fdd936d133bf8a48de140a3c666897588a05shiqian 1892e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that contains regular expression 'regex'. 1893e35fdd936d133bf8a48de140a3c666897588a05shiqian// The matcher takes ownership of 'regex'. 1894e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 1895e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::RE* regex) { 1896e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::MatchesRegexMatcher(regex, false)); 1897e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1898e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex( 1899e35fdd936d133bf8a48de140a3c666897588a05shiqian const internal::string& regex) { 1900e35fdd936d133bf8a48de140a3c666897588a05shiqian return ContainsRegex(new internal::RE(regex)); 1901e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1902e35fdd936d133bf8a48de140a3c666897588a05shiqian 1903e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GMOCK_HAS_REGEX 1904e35fdd936d133bf8a48de140a3c666897588a05shiqian 1905e35fdd936d133bf8a48de140a3c666897588a05shiqian#if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 1906e35fdd936d133bf8a48de140a3c666897588a05shiqian// Wide string matchers. 1907e35fdd936d133bf8a48de140a3c666897588a05shiqian 1908e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str. 1909e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 1910e35fdd936d133bf8a48de140a3c666897588a05shiqian StrEq(const internal::wstring& str) { 1911e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 1912e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, true)); 1913e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1914e35fdd936d133bf8a48de140a3c666897588a05shiqian 1915e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str. 1916e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 1917e35fdd936d133bf8a48de140a3c666897588a05shiqian StrNe(const internal::wstring& str) { 1918e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 1919e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, true)); 1920e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1921e35fdd936d133bf8a48de140a3c666897588a05shiqian 1922e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string equal to str, ignoring case. 1923e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 1924e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseEq(const internal::wstring& str) { 1925e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 1926e35fdd936d133bf8a48de140a3c666897588a05shiqian str, true, false)); 1927e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1928e35fdd936d133bf8a48de140a3c666897588a05shiqian 1929e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string not equal to str, ignoring case. 1930e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StrEqualityMatcher<internal::wstring> > 1931e35fdd936d133bf8a48de140a3c666897588a05shiqian StrCaseNe(const internal::wstring& str) { 1932e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StrEqualityMatcher<internal::wstring>( 1933e35fdd936d133bf8a48de140a3c666897588a05shiqian str, false, false)); 1934e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1935e35fdd936d133bf8a48de140a3c666897588a05shiqian 1936e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any wstring, std::wstring, or C wide string 1937e35fdd936d133bf8a48de140a3c666897588a05shiqian// that contains the given substring. 1938e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::HasSubstrMatcher<internal::wstring> > 1939e35fdd936d133bf8a48de140a3c666897588a05shiqian HasSubstr(const internal::wstring& substring) { 1940e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::HasSubstrMatcher<internal::wstring>( 1941e35fdd936d133bf8a48de140a3c666897588a05shiqian substring)); 1942e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1943e35fdd936d133bf8a48de140a3c666897588a05shiqian 1944e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that starts with 'prefix' (case-sensitive). 1945e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::StartsWithMatcher<internal::wstring> > 1946e35fdd936d133bf8a48de140a3c666897588a05shiqian StartsWith(const internal::wstring& prefix) { 1947e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::StartsWithMatcher<internal::wstring>( 1948e35fdd936d133bf8a48de140a3c666897588a05shiqian prefix)); 1949e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1950e35fdd936d133bf8a48de140a3c666897588a05shiqian 1951e35fdd936d133bf8a48de140a3c666897588a05shiqian// Matches a string that ends with 'suffix' (case-sensitive). 1952e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::EndsWithMatcher<internal::wstring> > 1953e35fdd936d133bf8a48de140a3c666897588a05shiqian EndsWith(const internal::wstring& suffix) { 1954e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::EndsWithMatcher<internal::wstring>( 1955e35fdd936d133bf8a48de140a3c666897588a05shiqian suffix)); 1956e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1957e35fdd936d133bf8a48de140a3c666897588a05shiqian 1958e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING 1959e35fdd936d133bf8a48de140a3c666897588a05shiqian 1960e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1961e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field == the second field. 1962e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Eq2Matcher Eq() { return internal::Eq2Matcher(); } 1963e35fdd936d133bf8a48de140a3c666897588a05shiqian 1964e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1965e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field >= the second field. 1966e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ge2Matcher Ge() { return internal::Ge2Matcher(); } 1967e35fdd936d133bf8a48de140a3c666897588a05shiqian 1968e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1969e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field > the second field. 1970e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Gt2Matcher Gt() { return internal::Gt2Matcher(); } 1971e35fdd936d133bf8a48de140a3c666897588a05shiqian 1972e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1973e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field <= the second field. 1974e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Le2Matcher Le() { return internal::Le2Matcher(); } 1975e35fdd936d133bf8a48de140a3c666897588a05shiqian 1976e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1977e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field < the second field. 1978e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Lt2Matcher Lt() { return internal::Lt2Matcher(); } 1979e35fdd936d133bf8a48de140a3c666897588a05shiqian 1980e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a polymorphic matcher that matches a 2-tuple where the 1981e35fdd936d133bf8a48de140a3c666897588a05shiqian// first field != the second field. 1982e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::Ne2Matcher Ne() { return internal::Ne2Matcher(); } 1983e35fdd936d133bf8a48de140a3c666897588a05shiqian 1984e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value of type T that m doesn't 1985e35fdd936d133bf8a48de140a3c666897588a05shiqian// match. 1986e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename InnerMatcher> 1987e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::NotMatcher<InnerMatcher> Not(InnerMatcher m) { 1988e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::NotMatcher<InnerMatcher>(m); 1989e35fdd936d133bf8a48de140a3c666897588a05shiqian} 1990e35fdd936d133bf8a48de140a3c666897588a05shiqian 1991e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value that matches all of the 1992e35fdd936d133bf8a48de140a3c666897588a05shiqian// given matchers. 1993e35fdd936d133bf8a48de140a3c666897588a05shiqian// 1994e35fdd936d133bf8a48de140a3c666897588a05shiqian// For now we only support up to 5 matchers. Support for more 1995e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be added as needed, or the user can use nested 1996e35fdd936d133bf8a48de140a3c666897588a05shiqian// AllOf()s. 1997e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 1998e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, Matcher2> 1999e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2) { 2000e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::BothOfMatcher<Matcher1, Matcher2>(m1, m2); 2001e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2002e35fdd936d133bf8a48de140a3c666897588a05shiqian 2003e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3> 2004e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2005e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, Matcher3> > 2006e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) { 2007e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3)); 2008e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2009e35fdd936d133bf8a48de140a3c666897588a05shiqian 2010e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2011e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4> 2012e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2013e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, 2014e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher3, Matcher4> > > 2015e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) { 2016e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3, m4)); 2017e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2018e35fdd936d133bf8a48de140a3c666897588a05shiqian 2019e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2020e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4, typename Matcher5> 2021e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::BothOfMatcher<Matcher1, 2022e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher2, 2023e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher3, 2024e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::BothOfMatcher<Matcher4, Matcher5> > > > 2025e35fdd936d133bf8a48de140a3c666897588a05shiqianAllOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) { 2026e35fdd936d133bf8a48de140a3c666897588a05shiqian return AllOf(m1, AllOf(m2, m3, m4, m5)); 2027e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2028e35fdd936d133bf8a48de140a3c666897588a05shiqian 2029e35fdd936d133bf8a48de140a3c666897588a05shiqian// Creates a matcher that matches any value that matches at least one 2030e35fdd936d133bf8a48de140a3c666897588a05shiqian// of the given matchers. 2031e35fdd936d133bf8a48de140a3c666897588a05shiqian// 2032e35fdd936d133bf8a48de140a3c666897588a05shiqian// For now we only support up to 5 matchers. Support for more 2033e35fdd936d133bf8a48de140a3c666897588a05shiqian// matchers can be added as needed, or the user can use nested 2034e35fdd936d133bf8a48de140a3c666897588a05shiqian// AnyOf()s. 2035e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2> 2036e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, Matcher2> 2037e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2) { 2038e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::EitherOfMatcher<Matcher1, Matcher2>(m1, m2); 2039e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2040e35fdd936d133bf8a48de140a3c666897588a05shiqian 2041e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3> 2042e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2043e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, Matcher3> > 2044e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3) { 2045e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3)); 2046e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2047e35fdd936d133bf8a48de140a3c666897588a05shiqian 2048e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2049e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4> 2050e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2051e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, 2052e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher3, Matcher4> > > 2053e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4) { 2054e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3, m4)); 2055e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2056e35fdd936d133bf8a48de140a3c666897588a05shiqian 2057e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Matcher1, typename Matcher2, typename Matcher3, 2058e35fdd936d133bf8a48de140a3c666897588a05shiqian typename Matcher4, typename Matcher5> 2059e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::EitherOfMatcher<Matcher1, 2060e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher2, 2061e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher3, 2062e35fdd936d133bf8a48de140a3c666897588a05shiqian internal::EitherOfMatcher<Matcher4, Matcher5> > > > 2063e35fdd936d133bf8a48de140a3c666897588a05shiqianAnyOf(Matcher1 m1, Matcher2 m2, Matcher3 m3, Matcher4 m4, Matcher5 m5) { 2064e35fdd936d133bf8a48de140a3c666897588a05shiqian return AnyOf(m1, AnyOf(m2, m3, m4, m5)); 2065e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2066e35fdd936d133bf8a48de140a3c666897588a05shiqian 2067e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a matcher that matches anything that satisfies the given 2068e35fdd936d133bf8a48de140a3c666897588a05shiqian// predicate. The predicate can be any unary function or functor 2069e35fdd936d133bf8a48de140a3c666897588a05shiqian// whose return type can be implicitly converted to bool. 2070e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename Predicate> 2071e35fdd936d133bf8a48de140a3c666897588a05shiqianinline PolymorphicMatcher<internal::TrulyMatcher<Predicate> > 2072e35fdd936d133bf8a48de140a3c666897588a05shiqianTruly(Predicate pred) { 2073e35fdd936d133bf8a48de140a3c666897588a05shiqian return MakePolymorphicMatcher(internal::TrulyMatcher<Predicate>(pred)); 2074e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2075e35fdd936d133bf8a48de140a3c666897588a05shiqian 2076e35fdd936d133bf8a48de140a3c666897588a05shiqian// Returns a predicate that is satisfied by anything that matches the 2077e35fdd936d133bf8a48de140a3c666897588a05shiqian// given matcher. 2078e35fdd936d133bf8a48de140a3c666897588a05shiqiantemplate <typename M> 2079e35fdd936d133bf8a48de140a3c666897588a05shiqianinline internal::MatcherAsPredicate<M> Matches(M matcher) { 2080e35fdd936d133bf8a48de140a3c666897588a05shiqian return internal::MatcherAsPredicate<M>(matcher); 2081e35fdd936d133bf8a48de140a3c666897588a05shiqian} 2082e35fdd936d133bf8a48de140a3c666897588a05shiqian 2083e35fdd936d133bf8a48de140a3c666897588a05shiqian// These macros allow using matchers to check values in Google Test 2084e35fdd936d133bf8a48de140a3c666897588a05shiqian// tests. ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher) 2085e35fdd936d133bf8a48de140a3c666897588a05shiqian// succeed iff the value matches the matcher. If the assertion fails, 2086e35fdd936d133bf8a48de140a3c666897588a05shiqian// the value and the description of the matcher will be printed. 2087e35fdd936d133bf8a48de140a3c666897588a05shiqian#define ASSERT_THAT(value, matcher) ASSERT_PRED_FORMAT1(\ 2088e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 2089e35fdd936d133bf8a48de140a3c666897588a05shiqian#define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\ 2090e35fdd936d133bf8a48de140a3c666897588a05shiqian ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value) 2091e35fdd936d133bf8a48de140a3c666897588a05shiqian 2092e35fdd936d133bf8a48de140a3c666897588a05shiqian} // namespace testing 2093e35fdd936d133bf8a48de140a3c666897588a05shiqian 2094e35fdd936d133bf8a48de140a3c666897588a05shiqian#endif // GMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_ 2095