1c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Copyright 2008, Google Inc. 2c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// All rights reserved. 3c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 4c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Redistribution and use in source and binary forms, with or without 5c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// modification, are permitted provided that the following conditions are 6c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// met: 7c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 8c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// * Redistributions of source code must retain the above copyright 9c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// notice, this list of conditions and the following disclaimer. 10c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// * Redistributions in binary form must reproduce the above 11c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// copyright notice, this list of conditions and the following disclaimer 12c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// in the documentation and/or other materials provided with the 13c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// distribution. 14c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// * Neither the name of Google Inc. nor the names of its 15c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// contributors may be used to endorse or promote products derived from 16c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// this software without specific prior written permission. 17c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 18c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 30c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Author: wan@google.com (Zhanyong Wan) 31c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 32c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <gtest/internal/gtest-port.h> 33c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 34c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <limits.h> 35c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef GTEST_HAS_DEATH_TEST 36c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <regex.h> 37c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // GTEST_HAS_DEATH_TEST 38c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stdlib.h> 39c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <stdio.h> 40c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 41c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <gtest/gtest-spi.h> 42c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <gtest/gtest-message.h> 43c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#include <gtest/internal/gtest-string.h> 44c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 45c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottnamespace testing { 46c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottnamespace internal { 47c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 48c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef GTEST_HAS_DEATH_TEST 49c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 50c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Implements RE. Currently only needed for death tests. 51c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 52c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick ScottRE::~RE() { 53c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott regfree(®ex_); 54c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott free(const_cast<char*>(pattern_)); 55c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 56c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 57c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns true iff str contains regular expression re. 58c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool RE::PartialMatch(const char* str, const RE& re) { 59c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!re.is_valid_) return false; 60c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 61c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott regmatch_t match; 62c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return regexec(&re.regex_, str, 1, &match, 0) == 0; 63c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 64c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 65c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Initializes an RE from its string representation. 66c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottvoid RE::Init(const char* regex) { 67c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott pattern_ = strdup(regex); 68c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott is_valid_ = regcomp(®ex_, regex, REG_EXTENDED) == 0; 69c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott EXPECT_TRUE(is_valid_) 70c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << "Regular expression \"" << regex 71c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << "\" is not a valid POSIX Extended regular expression."; 72c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 73c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 74c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // GTEST_HAS_DEATH_TEST 75c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 76c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Logs a message at the given severity level. 77c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottvoid GTestLog(GTestLogSeverity severity, const char* file, 78c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott int line, const char* msg) { 79c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const char* const marker = 80c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott severity == GTEST_INFO ? "[ INFO ]" : 81c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott severity == GTEST_WARNING ? "[WARNING]" : 82c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott severity == GTEST_ERROR ? "[ ERROR ]" : "[ FATAL ]"; 83c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fprintf(stderr, "\n%s %s:%d: %s\n", marker, file, line, msg); 84c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (severity == GTEST_FATAL) { 85c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott abort(); 86c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 87c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 88c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 89c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#ifdef GTEST_HAS_DEATH_TEST 90c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 91c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Defines the stderr capturer. 92c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 93c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottclass CapturedStderr { 94c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott public: 95c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The ctor redirects stderr to a temporary file. 96c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott CapturedStderr() { 97c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott uncaptured_fd_ = dup(STDERR_FILENO); 98c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 99c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott char name_template[] = "captured_stderr.XXXXXX"; 100c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const int captured_fd = mkstemp(name_template); 101c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott filename_ = name_template; 102c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fflush(NULL); 103c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott dup2(captured_fd, STDERR_FILENO); 104c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott close(captured_fd); 105c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 106c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 107c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ~CapturedStderr() { 108c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott remove(filename_.c_str()); 109c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 110c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 111c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Stops redirecting stderr. 112c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott void StopCapture() { 113c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Restores the original stream. 114c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fflush(NULL); 115c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott dup2(uncaptured_fd_, STDERR_FILENO); 116c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott close(uncaptured_fd_); 117c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott uncaptured_fd_ = -1; 118c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 119c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 120c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Returns the name of the temporary file holding the stderr output. 121c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we 122c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // can use it here. 123c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ::std::string filename() const { return filename_; } 124c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 125c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott private: 126c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott int uncaptured_fd_; 127c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ::std::string filename_; 128c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott}; 129c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 130c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstatic CapturedStderr* g_captured_stderr = NULL; 131c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 132c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns the size (in bytes) of a file. 133c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstatic size_t GetFileSize(FILE * file) { 134c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fseek(file, 0, SEEK_END); 135c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return static_cast<size_t>(ftell(file)); 136c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 137c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 138c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Reads the entire content of a file as a string. 139c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we can 140c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// use it here. 141c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstatic ::std::string ReadEntireFile(FILE * file) { 142c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const size_t file_size = GetFileSize(file); 143c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott char* const buffer = new char[file_size]; 144c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 145c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott size_t bytes_last_read = 0; // # of bytes read in the last fread() 146c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott size_t bytes_read = 0; // # of bytes read so far 147c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 148c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fseek(file, 0, SEEK_SET); 149c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 150c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Keeps reading the file until we cannot read further or the 151c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // pre-determined file size is reached. 152c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott do { 153c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file); 154c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott bytes_read += bytes_last_read; 155c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } while (bytes_last_read > 0 && bytes_read < file_size); 156c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 157c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const ::std::string content(buffer, buffer+bytes_read); 158c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott delete[] buffer; 159c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 160c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return content; 161c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 162c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 163c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Starts capturing stderr. 164c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottvoid CaptureStderr() { 165c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (g_captured_stderr != NULL) { 166c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott GTEST_LOG(FATAL, "Only one stderr capturer can exist at one time."); 167c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 168c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott g_captured_stderr = new CapturedStderr; 169c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 170c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 171c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Stops capturing stderr and returns the captured string. 172c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// GTEST_HAS_DEATH_TEST implies that we have ::std::string, so we can 173c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// use it here. 174c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott::std::string GetCapturedStderr() { 175c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott g_captured_stderr->StopCapture(); 176c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott FILE* const file = fopen(g_captured_stderr->filename().c_str(), "r"); 177c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const ::std::string content = ReadEntireFile(file); 178c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fclose(file); 179c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 180c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott delete g_captured_stderr; 181c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott g_captured_stderr = NULL; 182c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 183c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return content; 184c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 185c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 186c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// A copy of all command line arguments. Set by InitGoogleTest(). 187c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott::std::vector<String> g_argvs; 188c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 189c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns the command line as a vector of strings. 190c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottconst ::std::vector<String>& GetArgvs() { return g_argvs; } 191c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 192c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott#endif // GTEST_HAS_DEATH_TEST 193c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 194c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Returns the name of the environment variable corresponding to the 195c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// given flag. For example, FlagToEnvVar("foo") will return 196c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// "GTEST_FOO" in the open-source version. 197c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottstatic String FlagToEnvVar(const char* flag) { 198c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const String full_flag = (Message() << GTEST_FLAG_PREFIX << flag).GetString(); 199c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 200c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott Message env_var; 201c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott for (int i = 0; i != full_flag.GetLength(); i++) { 202c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott env_var << static_cast<char>(toupper(full_flag.c_str()[i])); 203c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 204c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 205c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return env_var.GetString(); 206c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 207c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 208c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Reads and returns the Boolean environment variable corresponding to 209c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// the given flag; if it's not set, returns default_value. 210c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// 211c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// The value is considered true iff it's not "0". 212c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool BoolFromGTestEnv(const char* flag, bool default_value) { 213c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const String env_var = FlagToEnvVar(flag); 214c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const char* const string_value = GetEnv(env_var.c_str()); 215c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return string_value == NULL ? 216c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott default_value : strcmp(string_value, "0") != 0; 217c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 218c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 219c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Parses 'str' for a 32-bit signed integer. If successful, writes 220c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// the result to *value and returns true; otherwise leaves *value 221c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// unchanged and returns false. 222c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottbool ParseInt32(const Message& src_text, const char* str, Int32* value) { 223c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Parses the environment variable as a decimal integer. 224c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott char* end = NULL; 225c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const long long_value = strtol(str, &end, 10); // NOLINT 226c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 227c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Has strtol() consumed all characters in the string? 228c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (*end != '\0') { 229c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // No - an invalid character was encountered. 230c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott Message msg; 231c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott msg << "WARNING: " << src_text 232c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << " is expected to be a 32-bit integer, but actually" 233c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << " has value \"" << str << "\".\n"; 234c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott printf("%s", msg.GetString().c_str()); 235c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fflush(stdout); 236c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return false; 237c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 238c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 239c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // Is the parsed value in the range of an Int32? 240c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const Int32 result = static_cast<Int32>(long_value); 241c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (long_value == LONG_MAX || long_value == LONG_MIN || 242c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The parsed value overflows as a long. (strtol() returns 243c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // LONG_MAX or LONG_MIN when the input overflows.) 244c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott result != long_value 245c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The parsed value overflows as an Int32. 246c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott ) { 247c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott Message msg; 248c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott msg << "WARNING: " << src_text 249c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << " is expected to be a 32-bit integer, but actually" 250c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott << " has value " << str << ", which overflows.\n"; 251c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott printf("%s", msg.GetString().c_str()); 252c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fflush(stdout); 253c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return false; 254c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 255c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 256c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott *value = result; 257c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return true; 258c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 259c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 260c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Reads and returns a 32-bit integer stored in the environment 261c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// variable corresponding to the given flag; if it isn't set or 262c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// doesn't represent a valid 32-bit integer, returns default_value. 263c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick ScottInt32 Int32FromGTestEnv(const char* flag, Int32 default_value) { 264c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const String env_var = FlagToEnvVar(flag); 265c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const char* const string_value = GetEnv(env_var.c_str()); 266c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (string_value == NULL) { 267c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott // The environment variable is not set. 268c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return default_value; 269c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 270c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 271c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott Int32 result = default_value; 272c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott if (!ParseInt32(Message() << "Environment variable " << env_var, 273c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott string_value, &result)) { 274c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott printf("The default value %s is used.\n", 275c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott (Message() << default_value).GetString().c_str()); 276c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott fflush(stdout); 277c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return default_value; 278c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott } 279c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 280c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return result; 281c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 282c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 283c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// Reads and returns the string environment variable corresponding to 284c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott// the given flag; if it's not set, returns default_value. 285c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scottconst char* StringFromGTestEnv(const char* flag, const char* default_value) { 286c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const String env_var = FlagToEnvVar(flag); 287c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott const char* const value = GetEnv(env_var.c_str()); 288c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott return value == NULL ? default_value : value; 289c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} 290c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott 291c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} // namespace internal 292c7f5f8508d98d5952d42ed7648c2a8f30a4da156Patrick Scott} // namespace testing 293