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1 // Copyright 2008, Google Inc. |
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2 // All rights reserved. |
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3 // |
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4 // Redistribution and use in source and binary forms, with or without |
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5 // modification, are permitted provided that the following conditions are |
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6 // met: |
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7 // |
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8 // * Redistributions of source code must retain the above copyright |
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9 // notice, this list of conditions and the following disclaimer. |
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10 // * Redistributions in binary form must reproduce the above |
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11 // copyright notice, this list of conditions and the following disclaimer |
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12 // in the documentation and/or other materials provided with the |
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13 // distribution. |
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14 // * Neither the name of Google Inc. nor the names of its |
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15 // contributors may be used to endorse or promote products derived from |
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16 // this software without specific prior written permission. |
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17 // |
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18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 // |
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30 // Author: wan@google.com (Zhanyong Wan) |
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31 |
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32 #include "gtest/internal/gtest-port.h" |
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33 |
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34 #include <limits.h> |
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35 #include <stdlib.h> |
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36 #include <stdio.h> |
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37 #include <string.h> |
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38 |
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39 #if GTEST_OS_WINDOWS_MOBILE |
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40 # include <windows.h> // For TerminateProcess() |
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41 #elif GTEST_OS_WINDOWS |
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42 # include <io.h> |
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43 # include <sys/stat.h> |
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44 #else |
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45 # include <unistd.h> |
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46 #endif // GTEST_OS_WINDOWS_MOBILE |
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47 |
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48 #if GTEST_OS_MAC |
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49 # include <mach/mach_init.h> |
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50 # include <mach/task.h> |
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51 # include <mach/vm_map.h> |
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52 #endif // GTEST_OS_MAC |
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53 |
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54 #if GTEST_OS_QNX |
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55 # include <devctl.h> |
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56 # include <sys/procfs.h> |
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57 #endif // GTEST_OS_QNX |
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58 |
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59 #include "gtest/gtest-spi.h" |
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60 #include "gtest/gtest-message.h" |
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61 #include "gtest/internal/gtest-internal.h" |
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62 #include "gtest/internal/gtest-string.h" |
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63 |
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64 // Indicates that this translation unit is part of Google Test's |
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65 // implementation. It must come before gtest-internal-inl.h is |
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66 // included, or there will be a compiler error. This trick is to |
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67 // prevent a user from accidentally including gtest-internal-inl.h in |
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68 // his code. |
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69 #define GTEST_IMPLEMENTATION_ 1 |
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70 #include "src/gtest-internal-inl.h" |
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71 #undef GTEST_IMPLEMENTATION_ |
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72 |
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73 namespace testing { |
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74 namespace internal { |
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75 |
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76 #if defined(_MSC_VER) || defined(__BORLANDC__) |
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77 // MSVC and C++Builder do not provide a definition of STDERR_FILENO. |
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78 const int kStdOutFileno = 1; |
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79 const int kStdErrFileno = 2; |
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80 #else |
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81 const int kStdOutFileno = STDOUT_FILENO; |
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82 const int kStdErrFileno = STDERR_FILENO; |
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83 #endif // _MSC_VER |
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84 |
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85 #if GTEST_OS_MAC |
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86 |
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87 // Returns the number of threads running in the process, or 0 to indicate that |
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88 // we cannot detect it. |
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89 size_t GetThreadCount() { |
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90 const task_t task = mach_task_self(); |
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91 mach_msg_type_number_t thread_count; |
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92 thread_act_array_t thread_list; |
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93 const kern_return_t status = task_threads(task, &thread_list, &thread_count); |
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94 if (status == KERN_SUCCESS) { |
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95 // task_threads allocates resources in thread_list and we need to free them |
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96 // to avoid leaks. |
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97 vm_deallocate(task, |
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98 reinterpret_cast<vm_address_t>(thread_list), |
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99 sizeof(thread_t) * thread_count); |
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100 return static_cast<size_t>(thread_count); |
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101 } else { |
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102 return 0; |
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103 } |
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104 } |
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105 |
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106 #elif GTEST_OS_QNX |
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107 |
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108 // Returns the number of threads running in the process, or 0 to indicate that |
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109 // we cannot detect it. |
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110 size_t GetThreadCount() { |
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111 const int fd = open("/proc/self/as", O_RDONLY); |
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112 if (fd < 0) { |
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113 return 0; |
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114 } |
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115 procfs_info process_info; |
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116 const int status = |
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117 devctl(fd, DCMD_PROC_INFO, &process_info, sizeof(process_info), NULL); |
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118 close(fd); |
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119 if (status == EOK) { |
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120 return static_cast<size_t>(process_info.num_threads); |
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121 } else { |
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122 return 0; |
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123 } |
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124 } |
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125 |
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126 #else |
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127 |
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128 size_t GetThreadCount() { |
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129 // There's no portable way to detect the number of threads, so we just |
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130 // return 0 to indicate that we cannot detect it. |
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131 return 0; |
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132 } |
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133 |
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134 #endif // GTEST_OS_MAC |
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135 |
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136 #if GTEST_USES_POSIX_RE |
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137 |
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138 // Implements RE. Currently only needed for death tests. |
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139 |
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140 RE::~RE() { |
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141 if (is_valid_) { |
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142 // regfree'ing an invalid regex might crash because the content |
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143 // of the regex is undefined. Since the regex's are essentially |
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144 // the same, one cannot be valid (or invalid) without the other |
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145 // being so too. |
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146 regfree(&partial_regex_); |
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147 regfree(&full_regex_); |
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148 } |
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149 free(const_cast<char*>(pattern_)); |
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150 } |
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151 |
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152 // Returns true iff regular expression re matches the entire str. |
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153 bool RE::FullMatch(const char* str, const RE& re) { |
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154 if (!re.is_valid_) return false; |
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155 |
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156 regmatch_t match; |
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157 return regexec(&re.full_regex_, str, 1, &match, 0) == 0; |
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158 } |
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159 |
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160 // Returns true iff regular expression re matches a substring of str |
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161 // (including str itself). |
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162 bool RE::PartialMatch(const char* str, const RE& re) { |
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163 if (!re.is_valid_) return false; |
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164 |
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165 regmatch_t match; |
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166 return regexec(&re.partial_regex_, str, 1, &match, 0) == 0; |
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167 } |
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168 |
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169 // Initializes an RE from its string representation. |
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170 void RE::Init(const char* regex) { |
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171 pattern_ = posix::StrDup(regex); |
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172 |
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173 // Reserves enough bytes to hold the regular expression used for a |
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174 // full match. |
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175 const size_t full_regex_len = strlen(regex) + 10; |
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176 char* const full_pattern = new char[full_regex_len]; |
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177 |
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178 snprintf(full_pattern, full_regex_len, "^(%s)$", regex); |
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179 is_valid_ = regcomp(&full_regex_, full_pattern, REG_EXTENDED) == 0; |
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180 // We want to call regcomp(&partial_regex_, ...) even if the |
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181 // previous expression returns false. Otherwise partial_regex_ may |
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182 // not be properly initialized can may cause trouble when it's |
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183 // freed. |
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184 // |
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185 // Some implementation of POSIX regex (e.g. on at least some |
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186 // versions of Cygwin) doesn't accept the empty string as a valid |
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187 // regex. We change it to an equivalent form "()" to be safe. |
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188 if (is_valid_) { |
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189 const char* const partial_regex = (*regex == '\0') ? "()" : regex; |
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190 is_valid_ = regcomp(&partial_regex_, partial_regex, REG_EXTENDED) == 0; |
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191 } |
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192 EXPECT_TRUE(is_valid_) |
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193 << "Regular expression \"" << regex |
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194 << "\" is not a valid POSIX Extended regular expression."; |
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195 |
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196 delete[] full_pattern; |
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197 } |
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198 |
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199 #elif GTEST_USES_SIMPLE_RE |
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200 |
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201 // Returns true iff ch appears anywhere in str (excluding the |
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202 // terminating '\0' character). |
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203 bool IsInSet(char ch, const char* str) { |
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204 return ch != '\0' && strchr(str, ch) != NULL; |
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205 } |
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206 |
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207 // Returns true iff ch belongs to the given classification. Unlike |
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208 // similar functions in <ctype.h>, these aren't affected by the |
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209 // current locale. |
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210 bool IsAsciiDigit(char ch) { return '0' <= ch && ch <= '9'; } |
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211 bool IsAsciiPunct(char ch) { |
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212 return IsInSet(ch, "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"); |
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213 } |
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214 bool IsRepeat(char ch) { return IsInSet(ch, "?*+"); } |
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215 bool IsAsciiWhiteSpace(char ch) { return IsInSet(ch, " \f\n\r\t\v"); } |
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216 bool IsAsciiWordChar(char ch) { |
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217 return ('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || |
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218 ('0' <= ch && ch <= '9') || ch == '_'; |
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219 } |
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220 |
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221 // Returns true iff "\\c" is a supported escape sequence. |
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222 bool IsValidEscape(char c) { |
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223 return (IsAsciiPunct(c) || IsInSet(c, "dDfnrsStvwW")); |
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224 } |
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225 |
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226 // Returns true iff the given atom (specified by escaped and pattern) |
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227 // matches ch. The result is undefined if the atom is invalid. |
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228 bool AtomMatchesChar(bool escaped, char pattern_char, char ch) { |
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229 if (escaped) { // "\\p" where p is pattern_char. |
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230 switch (pattern_char) { |
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231 case 'd': return IsAsciiDigit(ch); |
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232 case 'D': return !IsAsciiDigit(ch); |
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233 case 'f': return ch == '\f'; |
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234 case 'n': return ch == '\n'; |
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235 case 'r': return ch == '\r'; |
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236 case 's': return IsAsciiWhiteSpace(ch); |
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237 case 'S': return !IsAsciiWhiteSpace(ch); |
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238 case 't': return ch == '\t'; |
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239 case 'v': return ch == '\v'; |
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240 case 'w': return IsAsciiWordChar(ch); |
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241 case 'W': return !IsAsciiWordChar(ch); |
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242 } |
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243 return IsAsciiPunct(pattern_char) && pattern_char == ch; |
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244 } |
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245 |
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246 return (pattern_char == '.' && ch != '\n') || pattern_char == ch; |
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247 } |
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248 |
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249 // Helper function used by ValidateRegex() to format error messages. |
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250 std::string FormatRegexSyntaxError(const char* regex, int index) { |
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251 return (Message() << "Syntax error at index " << index |
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252 << " in simple regular expression \"" << regex << "\": ").GetString(); |
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253 } |
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254 |
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255 // Generates non-fatal failures and returns false if regex is invalid; |
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256 // otherwise returns true. |
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257 bool ValidateRegex(const char* regex) { |
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258 if (regex == NULL) { |
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259 // TODO(wan@google.com): fix the source file location in the |
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260 // assertion failures to match where the regex is used in user |
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261 // code. |
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262 ADD_FAILURE() << "NULL is not a valid simple regular expression."; |
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263 return false; |
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264 } |
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265 |
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266 bool is_valid = true; |
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267 |
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268 // True iff ?, *, or + can follow the previous atom. |
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269 bool prev_repeatable = false; |
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270 for (int i = 0; regex[i]; i++) { |
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271 if (regex[i] == '\\') { // An escape sequence |
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272 i++; |
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273 if (regex[i] == '\0') { |
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274 ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) |
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275 << "'\\' cannot appear at the end."; |
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276 return false; |
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277 } |
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278 |
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279 if (!IsValidEscape(regex[i])) { |
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280 ADD_FAILURE() << FormatRegexSyntaxError(regex, i - 1) |
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281 << "invalid escape sequence \"\\" << regex[i] << "\"."; |
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282 is_valid = false; |
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283 } |
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284 prev_repeatable = true; |
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285 } else { // Not an escape sequence. |
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286 const char ch = regex[i]; |
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287 |
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288 if (ch == '^' && i > 0) { |
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289 ADD_FAILURE() << FormatRegexSyntaxError(regex, i) |
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290 << "'^' can only appear at the beginning."; |
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291 is_valid = false; |
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292 } else if (ch == '$' && regex[i + 1] != '\0') { |
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293 ADD_FAILURE() << FormatRegexSyntaxError(regex, i) |
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294 << "'$' can only appear at the end."; |
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295 is_valid = false; |
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296 } else if (IsInSet(ch, "()[]{}|")) { |
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297 ADD_FAILURE() << FormatRegexSyntaxError(regex, i) |
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298 << "'" << ch << "' is unsupported."; |
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299 is_valid = false; |
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300 } else if (IsRepeat(ch) && !prev_repeatable) { |
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301 ADD_FAILURE() << FormatRegexSyntaxError(regex, i) |
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302 << "'" << ch << "' can only follow a repeatable token."; |
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303 is_valid = false; |
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304 } |
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305 |
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306 prev_repeatable = !IsInSet(ch, "^$?*+"); |
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307 } |
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308 } |
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309 |
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310 return is_valid; |
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311 } |
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312 |
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313 // Matches a repeated regex atom followed by a valid simple regular |
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314 // expression. The regex atom is defined as c if escaped is false, |
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315 // or \c otherwise. repeat is the repetition meta character (?, *, |
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316 // or +). The behavior is undefined if str contains too many |
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317 // characters to be indexable by size_t, in which case the test will |
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318 // probably time out anyway. We are fine with this limitation as |
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319 // std::string has it too. |
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320 bool MatchRepetitionAndRegexAtHead( |
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321 bool escaped, char c, char repeat, const char* regex, |
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322 const char* str) { |
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323 const size_t min_count = (repeat == '+') ? 1 : 0; |
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324 const size_t max_count = (repeat == '?') ? 1 : |
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325 static_cast<size_t>(-1) - 1; |
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326 // We cannot call numeric_limits::max() as it conflicts with the |
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327 // max() macro on Windows. |
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328 |
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329 for (size_t i = 0; i <= max_count; ++i) { |
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330 // We know that the atom matches each of the first i characters in str. |
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331 if (i >= min_count && MatchRegexAtHead(regex, str + i)) { |
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332 // We have enough matches at the head, and the tail matches too. |
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333 // Since we only care about *whether* the pattern matches str |
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334 // (as opposed to *how* it matches), there is no need to find a |
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335 // greedy match. |
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336 return true; |
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337 } |
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338 if (str[i] == '\0' || !AtomMatchesChar(escaped, c, str[i])) |
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339 return false; |
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340 } |
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341 return false; |
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342 } |
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343 |
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344 // Returns true iff regex matches a prefix of str. regex must be a |
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345 // valid simple regular expression and not start with "^", or the |
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346 // result is undefined. |
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347 bool MatchRegexAtHead(const char* regex, const char* str) { |
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348 if (*regex == '\0') // An empty regex matches a prefix of anything. |
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349 return true; |
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350 |
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351 // "$" only matches the end of a string. Note that regex being |
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352 // valid guarantees that there's nothing after "$" in it. |
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353 if (*regex == '$') |
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354 return *str == '\0'; |
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355 |
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356 // Is the first thing in regex an escape sequence? |
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357 const bool escaped = *regex == '\\'; |
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358 if (escaped) |
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359 ++regex; |
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360 if (IsRepeat(regex[1])) { |
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361 // MatchRepetitionAndRegexAtHead() calls MatchRegexAtHead(), so |
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362 // here's an indirect recursion. It terminates as the regex gets |
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363 // shorter in each recursion. |
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364 return MatchRepetitionAndRegexAtHead( |
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365 escaped, regex[0], regex[1], regex + 2, str); |
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366 } else { |
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367 // regex isn't empty, isn't "$", and doesn't start with a |
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368 // repetition. We match the first atom of regex with the first |
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369 // character of str and recurse. |
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370 return (*str != '\0') && AtomMatchesChar(escaped, *regex, *str) && |
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371 MatchRegexAtHead(regex + 1, str + 1); |
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372 } |
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373 } |
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374 |
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375 // Returns true iff regex matches any substring of str. regex must be |
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376 // a valid simple regular expression, or the result is undefined. |
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377 // |
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378 // The algorithm is recursive, but the recursion depth doesn't exceed |
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379 // the regex length, so we won't need to worry about running out of |
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380 // stack space normally. In rare cases the time complexity can be |
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381 // exponential with respect to the regex length + the string length, |
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382 // but usually it's must faster (often close to linear). |
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383 bool MatchRegexAnywhere(const char* regex, const char* str) { |
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384 if (regex == NULL || str == NULL) |
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385 return false; |
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386 |
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387 if (*regex == '^') |
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388 return MatchRegexAtHead(regex + 1, str); |
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389 |
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390 // A successful match can be anywhere in str. |
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391 do { |
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392 if (MatchRegexAtHead(regex, str)) |
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393 return true; |
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394 } while (*str++ != '\0'); |
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395 return false; |
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396 } |
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397 |
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398 // Implements the RE class. |
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399 |
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400 RE::~RE() { |
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401 free(const_cast<char*>(pattern_)); |
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402 free(const_cast<char*>(full_pattern_)); |
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403 } |
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404 |
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405 // Returns true iff regular expression re matches the entire str. |
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406 bool RE::FullMatch(const char* str, const RE& re) { |
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407 return re.is_valid_ && MatchRegexAnywhere(re.full_pattern_, str); |
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408 } |
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409 |
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410 // Returns true iff regular expression re matches a substring of str |
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411 // (including str itself). |
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412 bool RE::PartialMatch(const char* str, const RE& re) { |
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413 return re.is_valid_ && MatchRegexAnywhere(re.pattern_, str); |
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414 } |
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415 |
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416 // Initializes an RE from its string representation. |
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417 void RE::Init(const char* regex) { |
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418 pattern_ = full_pattern_ = NULL; |
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419 if (regex != NULL) { |
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420 pattern_ = posix::StrDup(regex); |
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421 } |
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422 |
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423 is_valid_ = ValidateRegex(regex); |
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424 if (!is_valid_) { |
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425 // No need to calculate the full pattern when the regex is invalid. |
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426 return; |
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427 } |
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428 |
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429 const size_t len = strlen(regex); |
|
|
430 // Reserves enough bytes to hold the regular expression used for a |
|
|
431 // full match: we need space to prepend a '^', append a '$', and |
|
|
432 // terminate the string with '\0'. |
|
|
433 char* buffer = static_cast<char*>(malloc(len + 3)); |
|
|
434 full_pattern_ = buffer; |
|
|
435 |
|
|
436 if (*regex != '^') |
|
|
437 *buffer++ = '^'; // Makes sure full_pattern_ starts with '^'. |
|
|
438 |
|
|
439 // We don't use snprintf or strncpy, as they trigger a warning when |
|
|
440 // compiled with VC++ 8.0. |
|
|
441 memcpy(buffer, regex, len); |
|
|
442 buffer += len; |
|
|
443 |
|
|
444 if (len == 0 || regex[len - 1] != '$') |
|
|
445 *buffer++ = '$'; // Makes sure full_pattern_ ends with '$'. |
|
|
446 |
|
|
447 *buffer = '\0'; |
|
|
448 } |
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|
449 |
|
|
450 #endif // GTEST_USES_POSIX_RE |
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|
451 |
|
|
452 const char kUnknownFile[] = "unknown file"; |
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|
453 |
|
|
454 // Formats a source file path and a line number as they would appear |
|
|
455 // in an error message from the compiler used to compile this code. |
|
|
456 GTEST_API_ ::std::string FormatFileLocation(const char* file, int line) { |
|
|
457 const std::string file_name(file == NULL ? kUnknownFile : file); |
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|
458 |
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|
459 if (line < 0) { |
|
|
460 return file_name + ":"; |
|
|
461 } |
|
|
462 #ifdef _MSC_VER |
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|
463 return file_name + "(" + StreamableToString(line) + "):"; |
|
|
464 #else |
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|
465 return file_name + ":" + StreamableToString(line) + ":"; |
|
|
466 #endif // _MSC_VER |
|
|
467 } |
|
|
468 |
|
|
469 // Formats a file location for compiler-independent XML output. |
|
|
470 // Although this function is not platform dependent, we put it next to |
|
|
471 // FormatFileLocation in order to contrast the two functions. |
|
|
472 // Note that FormatCompilerIndependentFileLocation() does NOT append colon |
|
|
473 // to the file location it produces, unlike FormatFileLocation(). |
|
|
474 GTEST_API_ ::std::string FormatCompilerIndependentFileLocation( |
|
|
475 const char* file, int line) { |
|
|
476 const std::string file_name(file == NULL ? kUnknownFile : file); |
|
|
477 |
|
|
478 if (line < 0) |
|
|
479 return file_name; |
|
|
480 else |
|
|
481 return file_name + ":" + StreamableToString(line); |
|
|
482 } |
|
|
483 |
|
|
484 |
|
|
485 GTestLog::GTestLog(GTestLogSeverity severity, const char* file, int line) |
|
|
486 : severity_(severity) { |
|
|
487 const char* const marker = |
|
|
488 severity == GTEST_INFO ? "[ INFO ]" : |
|
|
489 severity == GTEST_WARNING ? "[WARNING]" : |
|
|
490 severity == GTEST_ERROR ? "[ ERROR ]" : "[ FATAL ]"; |
|
|
491 GetStream() << ::std::endl << marker << " " |
|
|
492 << FormatFileLocation(file, line).c_str() << ": "; |
|
|
493 } |
|
|
494 |
|
|
495 // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. |
|
|
496 GTestLog::~GTestLog() { |
|
|
497 GetStream() << ::std::endl; |
|
|
498 if (severity_ == GTEST_FATAL) { |
|
|
499 fflush(stderr); |
|
|
500 posix::Abort(); |
|
|
501 } |
|
|
502 } |
|
|
503 // Disable Microsoft deprecation warnings for POSIX functions called from |
|
|
504 // this class (creat, dup, dup2, and close) |
|
|
505 #ifdef _MSC_VER |
|
|
506 # pragma warning(push) |
|
|
507 # pragma warning(disable: 4996) |
|
|
508 #endif // _MSC_VER |
|
|
509 |
|
|
510 #if GTEST_HAS_STREAM_REDIRECTION |
|
|
511 |
|
|
512 // Object that captures an output stream (stdout/stderr). |
|
|
513 class CapturedStream { |
|
|
514 public: |
|
|
515 // The ctor redirects the stream to a temporary file. |
|
|
516 explicit CapturedStream(int fd) : fd_(fd), uncaptured_fd_(dup(fd)) { |
|
|
517 # if GTEST_OS_WINDOWS |
|
|
518 char temp_dir_path[MAX_PATH + 1] = { '\0' }; // NOLINT |
|
|
519 char temp_file_path[MAX_PATH + 1] = { '\0' }; // NOLINT |
|
|
520 |
|
|
521 ::GetTempPathA(sizeof(temp_dir_path), temp_dir_path); |
|
|
522 const UINT success = ::GetTempFileNameA(temp_dir_path, |
|
|
523 "gtest_redir", |
|
|
524 0, // Generate unique file name. |
|
|
525 temp_file_path); |
|
|
526 GTEST_CHECK_(success != 0) |
|
|
527 << "Unable to create a temporary file in " << temp_dir_path; |
|
|
528 const int captured_fd = creat(temp_file_path, _S_IREAD | _S_IWRITE); |
|
|
529 GTEST_CHECK_(captured_fd != -1) << "Unable to open temporary file " |
|
|
530 << temp_file_path; |
|
|
531 filename_ = temp_file_path; |
|
|
532 # else |
|
|
533 // There's no guarantee that a test has write access to the current |
|
|
534 // directory, so we create the temporary file in the /tmp directory |
|
|
535 // instead. We use /tmp on most systems, and /sdcard on Android. |
|
|
536 // That's because Android doesn't have /tmp. |
|
|
537 # if GTEST_OS_LINUX_ANDROID |
|
|
538 // Note: Android applications are expected to call the framework's |
|
|
539 // Context.getExternalStorageDirectory() method through JNI to get |
|
|
540 // the location of the world-writable SD Card directory. However, |
|
|
541 // this requires a Context handle, which cannot be retrieved |
|
|
542 // globally from native code. Doing so also precludes running the |
|
|
543 // code as part of a regular standalone executable, which doesn't |
|
|
544 // run in a Dalvik process (e.g. when running it through 'adb shell'). |
|
|
545 // |
|
|
546 // The location /sdcard is directly accessible from native code |
|
|
547 // and is the only location (unofficially) supported by the Android |
|
|
548 // team. It's generally a symlink to the real SD Card mount point |
|
|
549 // which can be /mnt/sdcard, /mnt/sdcard0, /system/media/sdcard, or |
|
|
550 // other OEM-customized locations. Never rely on these, and always |
|
|
551 // use /sdcard. |
|
|
552 char name_template[] = "/sdcard/gtest_captured_stream.XXXXXX"; |
|
|
553 # else |
|
|
554 char name_template[] = "/tmp/captured_stream.XXXXXX"; |
|
|
555 # endif // GTEST_OS_LINUX_ANDROID |
|
|
556 const int captured_fd = mkstemp(name_template); |
|
|
557 filename_ = name_template; |
|
|
558 # endif // GTEST_OS_WINDOWS |
|
|
559 fflush(NULL); |
|
|
560 dup2(captured_fd, fd_); |
|
|
561 close(captured_fd); |
|
|
562 } |
|
|
563 |
|
|
564 ~CapturedStream() { |
|
|
565 remove(filename_.c_str()); |
|
|
566 } |
|
|
567 |
|
|
568 std::string GetCapturedString() { |
|
|
569 if (uncaptured_fd_ != -1) { |
|
|
570 // Restores the original stream. |
|
|
571 fflush(NULL); |
|
|
572 dup2(uncaptured_fd_, fd_); |
|
|
573 close(uncaptured_fd_); |
|
|
574 uncaptured_fd_ = -1; |
|
|
575 } |
|
|
576 |
|
|
577 FILE* const file = posix::FOpen(filename_.c_str(), "r"); |
|
|
578 const std::string content = ReadEntireFile(file); |
|
|
579 posix::FClose(file); |
|
|
580 return content; |
|
|
581 } |
|
|
582 |
|
|
583 private: |
|
|
584 // Reads the entire content of a file as an std::string. |
|
|
585 static std::string ReadEntireFile(FILE* file); |
|
|
586 |
|
|
587 // Returns the size (in bytes) of a file. |
|
|
588 static size_t GetFileSize(FILE* file); |
|
|
589 |
|
|
590 const int fd_; // A stream to capture. |
|
|
591 int uncaptured_fd_; |
|
|
592 // Name of the temporary file holding the stderr output. |
|
|
593 ::std::string filename_; |
|
|
594 |
|
|
595 GTEST_DISALLOW_COPY_AND_ASSIGN_(CapturedStream); |
|
|
596 }; |
|
|
597 |
|
|
598 // Returns the size (in bytes) of a file. |
|
|
599 size_t CapturedStream::GetFileSize(FILE* file) { |
|
|
600 fseek(file, 0, SEEK_END); |
|
|
601 return static_cast<size_t>(ftell(file)); |
|
|
602 } |
|
|
603 |
|
|
604 // Reads the entire content of a file as a string. |
|
|
605 std::string CapturedStream::ReadEntireFile(FILE* file) { |
|
|
606 const size_t file_size = GetFileSize(file); |
|
|
607 char* const buffer = new char[file_size]; |
|
|
608 |
|
|
609 size_t bytes_last_read = 0; // # of bytes read in the last fread() |
|
|
610 size_t bytes_read = 0; // # of bytes read so far |
|
|
611 |
|
|
612 fseek(file, 0, SEEK_SET); |
|
|
613 |
|
|
614 // Keeps reading the file until we cannot read further or the |
|
|
615 // pre-determined file size is reached. |
|
|
616 do { |
|
|
617 bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file); |
|
|
618 bytes_read += bytes_last_read; |
|
|
619 } while (bytes_last_read > 0 && bytes_read < file_size); |
|
|
620 |
|
|
621 const std::string content(buffer, bytes_read); |
|
|
622 delete[] buffer; |
|
|
623 |
|
|
624 return content; |
|
|
625 } |
|
|
626 |
|
|
627 # ifdef _MSC_VER |
|
|
628 # pragma warning(pop) |
|
|
629 # endif // _MSC_VER |
|
|
630 |
|
|
631 static CapturedStream* g_captured_stderr = NULL; |
|
|
632 static CapturedStream* g_captured_stdout = NULL; |
|
|
633 |
|
|
634 // Starts capturing an output stream (stdout/stderr). |
|
|
635 void CaptureStream(int fd, const char* stream_name, CapturedStream** stream) { |
|
|
636 if (*stream != NULL) { |
|
|
637 GTEST_LOG_(FATAL) << "Only one " << stream_name |
|
|
638 << " capturer can exist at a time."; |
|
|
639 } |
|
|
640 *stream = new CapturedStream(fd); |
|
|
641 } |
|
|
642 |
|
|
643 // Stops capturing the output stream and returns the captured string. |
|
|
644 std::string GetCapturedStream(CapturedStream** captured_stream) { |
|
|
645 const std::string content = (*captured_stream)->GetCapturedString(); |
|
|
646 |
|
|
647 delete *captured_stream; |
|
|
648 *captured_stream = NULL; |
|
|
649 |
|
|
650 return content; |
|
|
651 } |
|
|
652 |
|
|
653 // Starts capturing stdout. |
|
|
654 void CaptureStdout() { |
|
|
655 CaptureStream(kStdOutFileno, "stdout", &g_captured_stdout); |
|
|
656 } |
|
|
657 |
|
|
658 // Starts capturing stderr. |
|
|
659 void CaptureStderr() { |
|
|
660 CaptureStream(kStdErrFileno, "stderr", &g_captured_stderr); |
|
|
661 } |
|
|
662 |
|
|
663 // Stops capturing stdout and returns the captured string. |
|
|
664 std::string GetCapturedStdout() { |
|
|
665 return GetCapturedStream(&g_captured_stdout); |
|
|
666 } |
|
|
667 |
|
|
668 // Stops capturing stderr and returns the captured string. |
|
|
669 std::string GetCapturedStderr() { |
|
|
670 return GetCapturedStream(&g_captured_stderr); |
|
|
671 } |
|
|
672 |
|
|
673 #endif // GTEST_HAS_STREAM_REDIRECTION |
|
|
674 |
|
|
675 #if GTEST_HAS_DEATH_TEST |
|
|
676 |
|
|
677 // A copy of all command line arguments. Set by InitGoogleTest(). |
|
|
678 ::std::vector<testing::internal::string> g_argvs; |
|
|
679 |
|
|
680 static const ::std::vector<testing::internal::string>* g_injected_test_argvs = |
|
|
681 NULL; // Owned. |
|
|
682 |
|
|
683 void SetInjectableArgvs(const ::std::vector<testing::internal::string>* argvs) { |
|
|
684 if (g_injected_test_argvs != argvs) |
|
|
685 delete g_injected_test_argvs; |
|
|
686 g_injected_test_argvs = argvs; |
|
|
687 } |
|
|
688 |
|
|
689 const ::std::vector<testing::internal::string>& GetInjectableArgvs() { |
|
|
690 if (g_injected_test_argvs != NULL) { |
|
|
691 return *g_injected_test_argvs; |
|
|
692 } |
|
|
693 return g_argvs; |
|
|
694 } |
|
|
695 #endif // GTEST_HAS_DEATH_TEST |
|
|
696 |
|
|
697 #if GTEST_OS_WINDOWS_MOBILE |
|
|
698 namespace posix { |
|
|
699 void Abort() { |
|
|
700 DebugBreak(); |
|
|
701 TerminateProcess(GetCurrentProcess(), 1); |
|
|
702 } |
|
|
703 } // namespace posix |
|
|
704 #endif // GTEST_OS_WINDOWS_MOBILE |
|
|
705 |
|
|
706 // Returns the name of the environment variable corresponding to the |
|
|
707 // given flag. For example, FlagToEnvVar("foo") will return |
|
|
708 // "GTEST_FOO" in the open-source version. |
|
|
709 static std::string FlagToEnvVar(const char* flag) { |
|
|
710 const std::string full_flag = |
|
|
711 (Message() << GTEST_FLAG_PREFIX_ << flag).GetString(); |
|
|
712 |
|
|
713 Message env_var; |
|
|
714 for (size_t i = 0; i != full_flag.length(); i++) { |
|
|
715 env_var << ToUpper(full_flag.c_str()[i]); |
|
|
716 } |
|
|
717 |
|
|
718 return env_var.GetString(); |
|
|
719 } |
|
|
720 |
|
|
721 // Parses 'str' for a 32-bit signed integer. If successful, writes |
|
|
722 // the result to *value and returns true; otherwise leaves *value |
|
|
723 // unchanged and returns false. |
|
|
724 bool ParseInt32(const Message& src_text, const char* str, Int32* value) { |
|
|
725 // Parses the environment variable as a decimal integer. |
|
|
726 char* end = NULL; |
|
|
727 const long long_value = strtol(str, &end, 10); // NOLINT |
|
|
728 |
|
|
729 // Has strtol() consumed all characters in the string? |
|
|
730 if (*end != '\0') { |
|
|
731 // No - an invalid character was encountered. |
|
|
732 Message msg; |
|
|
733 msg << "WARNING: " << src_text |
|
|
734 << " is expected to be a 32-bit integer, but actually" |
|
|
735 << " has value \"" << str << "\".\n"; |
|
|
736 printf("%s", msg.GetString().c_str()); |
|
|
737 fflush(stdout); |
|
|
738 return false; |
|
|
739 } |
|
|
740 |
|
|
741 // Is the parsed value in the range of an Int32? |
|
|
742 const Int32 result = static_cast<Int32>(long_value); |
|
|
743 if (long_value == LONG_MAX || long_value == LONG_MIN || |
|
|
744 // The parsed value overflows as a long. (strtol() returns |
|
|
745 // LONG_MAX or LONG_MIN when the input overflows.) |
|
|
746 result != long_value |
|
|
747 // The parsed value overflows as an Int32. |
|
|
748 ) { |
|
|
749 Message msg; |
|
|
750 msg << "WARNING: " << src_text |
|
|
751 << " is expected to be a 32-bit integer, but actually" |
|
|
752 << " has value " << str << ", which overflows.\n"; |
|
|
753 printf("%s", msg.GetString().c_str()); |
|
|
754 fflush(stdout); |
|
|
755 return false; |
|
|
756 } |
|
|
757 |
|
|
758 *value = result; |
|
|
759 return true; |
|
|
760 } |
|
|
761 |
|
|
762 // Reads and returns the Boolean environment variable corresponding to |
|
|
763 // the given flag; if it's not set, returns default_value. |
|
|
764 // |
|
|
765 // The value is considered true iff it's not "0". |
|
|
766 bool BoolFromGTestEnv(const char* flag, bool default_value) { |
|
|
767 const std::string env_var = FlagToEnvVar(flag); |
|
|
768 const char* const string_value = posix::GetEnv(env_var.c_str()); |
|
|
769 return string_value == NULL ? |
|
|
770 default_value : strcmp(string_value, "0") != 0; |
|
|
771 } |
|
|
772 |
|
|
773 // Reads and returns a 32-bit integer stored in the environment |
|
|
774 // variable corresponding to the given flag; if it isn't set or |
|
|
775 // doesn't represent a valid 32-bit integer, returns default_value. |
|
|
776 Int32 Int32FromGTestEnv(const char* flag, Int32 default_value) { |
|
|
777 const std::string env_var = FlagToEnvVar(flag); |
|
|
778 const char* const string_value = posix::GetEnv(env_var.c_str()); |
|
|
779 if (string_value == NULL) { |
|
|
780 // The environment variable is not set. |
|
|
781 return default_value; |
|
|
782 } |
|
|
783 |
|
|
784 Int32 result = default_value; |
|
|
785 if (!ParseInt32(Message() << "Environment variable " << env_var, |
|
|
786 string_value, &result)) { |
|
|
787 printf("The default value %s is used.\n", |
|
|
788 (Message() << default_value).GetString().c_str()); |
|
|
789 fflush(stdout); |
|
|
790 return default_value; |
|
|
791 } |
|
|
792 |
|
|
793 return result; |
|
|
794 } |
|
|
795 |
|
|
796 // Reads and returns the string environment variable corresponding to |
|
|
797 // the given flag; if it's not set, returns default_value. |
|
|
798 const char* StringFromGTestEnv(const char* flag, const char* default_value) { |
|
|
799 const std::string env_var = FlagToEnvVar(flag); |
|
|
800 const char* const value = posix::GetEnv(env_var.c_str()); |
|
|
801 return value == NULL ? default_value : value; |
|
|
802 } |
|
|
803 |
|
|
804 } // namespace internal |
|
|
805 } // namespace testing |
