1 // Copyright 2005, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 // 30 // Author: wan (at) google.com (Zhanyong Wan) 31 // 32 // The Google C++ Testing Framework (Google Test) 33 34 #include "gtest/gtest.h" 35 #include "gtest/internal/custom/gtest.h" 36 #include "gtest/gtest-spi.h" 37 38 #include <ctype.h> 39 #include <math.h> 40 #include <stdarg.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <time.h> 44 #include <wchar.h> 45 #include <wctype.h> 46 47 #include <algorithm> 48 #include <iomanip> 49 #include <limits> 50 #include <list> 51 #include <map> 52 #include <ostream> // NOLINT 53 #include <sstream> 54 #include <vector> 55 56 #if GTEST_OS_LINUX 57 58 // TODO(kenton (at) google.com): Use autoconf to detect availability of 59 // gettimeofday(). 60 # define GTEST_HAS_GETTIMEOFDAY_ 1 61 62 # include <fcntl.h> // NOLINT 63 # include <limits.h> // NOLINT 64 # include <sched.h> // NOLINT 65 // Declares vsnprintf(). This header is not available on Windows. 66 # include <strings.h> // NOLINT 67 # include <sys/mman.h> // NOLINT 68 # include <sys/time.h> // NOLINT 69 # include <unistd.h> // NOLINT 70 # include <string> 71 72 #elif GTEST_OS_SYMBIAN 73 # define GTEST_HAS_GETTIMEOFDAY_ 1 74 # include <sys/time.h> // NOLINT 75 76 #elif GTEST_OS_ZOS 77 # define GTEST_HAS_GETTIMEOFDAY_ 1 78 # include <sys/time.h> // NOLINT 79 80 // On z/OS we additionally need strings.h for strcasecmp. 81 # include <strings.h> // NOLINT 82 83 #elif GTEST_OS_WINDOWS_MOBILE // We are on Windows CE. 84 85 # include <windows.h> // NOLINT 86 # undef min 87 88 #elif GTEST_OS_WINDOWS // We are on Windows proper. 89 90 # include <io.h> // NOLINT 91 # include <sys/timeb.h> // NOLINT 92 # include <sys/types.h> // NOLINT 93 # include <sys/stat.h> // NOLINT 94 95 # if GTEST_OS_WINDOWS_MINGW 96 // MinGW has gettimeofday() but not _ftime64(). 97 // TODO(kenton (at) google.com): Use autoconf to detect availability of 98 // gettimeofday(). 99 // TODO(kenton (at) google.com): There are other ways to get the time on 100 // Windows, like GetTickCount() or GetSystemTimeAsFileTime(). MinGW 101 // supports these. consider using them instead. 102 # define GTEST_HAS_GETTIMEOFDAY_ 1 103 # include <sys/time.h> // NOLINT 104 # endif // GTEST_OS_WINDOWS_MINGW 105 106 // cpplint thinks that the header is already included, so we want to 107 // silence it. 108 # include <windows.h> // NOLINT 109 # undef min 110 111 #else 112 113 // Assume other platforms have gettimeofday(). 114 // TODO(kenton (at) google.com): Use autoconf to detect availability of 115 // gettimeofday(). 116 # define GTEST_HAS_GETTIMEOFDAY_ 1 117 118 // cpplint thinks that the header is already included, so we want to 119 // silence it. 120 # include <sys/time.h> // NOLINT 121 # include <unistd.h> // NOLINT 122 123 #endif // GTEST_OS_LINUX 124 125 #if GTEST_HAS_EXCEPTIONS 126 # include <stdexcept> 127 #endif 128 129 #if GTEST_CAN_STREAM_RESULTS_ 130 # include <arpa/inet.h> // NOLINT 131 # include <netdb.h> // NOLINT 132 # include <sys/socket.h> // NOLINT 133 # include <sys/types.h> // NOLINT 134 #endif 135 136 // Indicates that this translation unit is part of Google Test's 137 // implementation. It must come before gtest-internal-inl.h is 138 // included, or there will be a compiler error. This trick is to 139 // prevent a user from accidentally including gtest-internal-inl.h in 140 // his code. 141 #define GTEST_IMPLEMENTATION_ 1 142 #include "src/gtest-internal-inl.h" 143 #undef GTEST_IMPLEMENTATION_ 144 145 #if GTEST_OS_WINDOWS 146 # define vsnprintf _vsnprintf 147 #endif // GTEST_OS_WINDOWS 148 149 namespace testing { 150 151 using internal::CountIf; 152 using internal::ForEach; 153 using internal::GetElementOr; 154 using internal::Shuffle; 155 156 // Constants. 157 158 // A test whose test case name or test name matches this filter is 159 // disabled and not run. 160 static const char kDisableTestFilter[] = "DISABLED_*:*/DISABLED_*"; 161 162 // A test case whose name matches this filter is considered a death 163 // test case and will be run before test cases whose name doesn't 164 // match this filter. 165 static const char kDeathTestCaseFilter[] = "*DeathTest:*DeathTest/*"; 166 167 // A test filter that matches everything. 168 static const char kUniversalFilter[] = "*"; 169 170 // The default output file for XML output. 171 static const char kDefaultOutputFile[] = "test_detail.xml"; 172 173 // The environment variable name for the test shard index. 174 static const char kTestShardIndex[] = "GTEST_SHARD_INDEX"; 175 // The environment variable name for the total number of test shards. 176 static const char kTestTotalShards[] = "GTEST_TOTAL_SHARDS"; 177 // The environment variable name for the test shard status file. 178 static const char kTestShardStatusFile[] = "GTEST_SHARD_STATUS_FILE"; 179 180 namespace internal { 181 182 // The text used in failure messages to indicate the start of the 183 // stack trace. 184 const char kStackTraceMarker[] = "\nStack trace:\n"; 185 186 // g_help_flag is true iff the --help flag or an equivalent form is 187 // specified on the command line. 188 bool g_help_flag = false; 189 190 } // namespace internal 191 192 static const char* GetDefaultFilter() { 193 #ifdef GTEST_TEST_FILTER_ENV_VAR_ 194 const char* const testbridge_test_only = getenv(GTEST_TEST_FILTER_ENV_VAR_); 195 if (testbridge_test_only != NULL) { 196 return testbridge_test_only; 197 } 198 #endif // GTEST_TEST_FILTER_ENV_VAR_ 199 return kUniversalFilter; 200 } 201 202 GTEST_DEFINE_bool_( 203 also_run_disabled_tests, 204 internal::BoolFromGTestEnv("also_run_disabled_tests", false), 205 "Run disabled tests too, in addition to the tests normally being run."); 206 207 GTEST_DEFINE_bool_( 208 break_on_failure, 209 internal::BoolFromGTestEnv("break_on_failure", false), 210 "True iff a failed assertion should be a debugger break-point."); 211 212 GTEST_DEFINE_bool_( 213 catch_exceptions, 214 internal::BoolFromGTestEnv("catch_exceptions", true), 215 "True iff " GTEST_NAME_ 216 " should catch exceptions and treat them as test failures."); 217 218 GTEST_DEFINE_string_( 219 color, 220 internal::StringFromGTestEnv("color", "auto"), 221 "Whether to use colors in the output. Valid values: yes, no, " 222 "and auto. 'auto' means to use colors if the output is " 223 "being sent to a terminal and the TERM environment variable " 224 "is set to a terminal type that supports colors."); 225 226 GTEST_DEFINE_string_( 227 filter, 228 internal::StringFromGTestEnv("filter", GetDefaultFilter()), 229 "A colon-separated list of glob (not regex) patterns " 230 "for filtering the tests to run, optionally followed by a " 231 "'-' and a : separated list of negative patterns (tests to " 232 "exclude). A test is run if it matches one of the positive " 233 "patterns and does not match any of the negative patterns."); 234 235 GTEST_DEFINE_bool_(list_tests, false, 236 "List all tests without running them."); 237 238 GTEST_DEFINE_string_( 239 output, 240 internal::StringFromGTestEnv("output", ""), 241 "A format (currently must be \"xml\"), optionally followed " 242 "by a colon and an output file name or directory. A directory " 243 "is indicated by a trailing pathname separator. " 244 "Examples: \"xml:filename.xml\", \"xml::directoryname/\". " 245 "If a directory is specified, output files will be created " 246 "within that directory, with file-names based on the test " 247 "executable's name and, if necessary, made unique by adding " 248 "digits."); 249 250 GTEST_DEFINE_bool_( 251 print_time, 252 internal::BoolFromGTestEnv("print_time", true), 253 "True iff " GTEST_NAME_ 254 " should display elapsed time in text output."); 255 256 GTEST_DEFINE_int32_( 257 random_seed, 258 internal::Int32FromGTestEnv("random_seed", 0), 259 "Random number seed to use when shuffling test orders. Must be in range " 260 "[1, 99999], or 0 to use a seed based on the current time."); 261 262 GTEST_DEFINE_int32_( 263 repeat, 264 internal::Int32FromGTestEnv("repeat", 1), 265 "How many times to repeat each test. Specify a negative number " 266 "for repeating forever. Useful for shaking out flaky tests."); 267 268 GTEST_DEFINE_bool_( 269 show_internal_stack_frames, false, 270 "True iff " GTEST_NAME_ " should include internal stack frames when " 271 "printing test failure stack traces."); 272 273 GTEST_DEFINE_bool_( 274 shuffle, 275 internal::BoolFromGTestEnv("shuffle", false), 276 "True iff " GTEST_NAME_ 277 " should randomize tests' order on every run."); 278 279 GTEST_DEFINE_int32_( 280 stack_trace_depth, 281 internal::Int32FromGTestEnv("stack_trace_depth", kMaxStackTraceDepth), 282 "The maximum number of stack frames to print when an " 283 "assertion fails. The valid range is 0 through 100, inclusive."); 284 285 GTEST_DEFINE_string_( 286 stream_result_to, 287 internal::StringFromGTestEnv("stream_result_to", ""), 288 "This flag specifies the host name and the port number on which to stream " 289 "test results. Example: \"localhost:555\". The flag is effective only on " 290 "Linux."); 291 292 GTEST_DEFINE_bool_( 293 throw_on_failure, 294 internal::BoolFromGTestEnv("throw_on_failure", false), 295 "When this flag is specified, a failed assertion will throw an exception " 296 "if exceptions are enabled or exit the program with a non-zero code " 297 "otherwise."); 298 299 #if GTEST_USE_OWN_FLAGFILE_FLAG_ 300 GTEST_DEFINE_string_( 301 flagfile, 302 internal::StringFromGTestEnv("flagfile", ""), 303 "This flag specifies the flagfile to read command-line flags from."); 304 #endif // GTEST_USE_OWN_FLAGFILE_FLAG_ 305 306 namespace internal { 307 308 // Generates a random number from [0, range), using a Linear 309 // Congruential Generator (LCG). Crashes if 'range' is 0 or greater 310 // than kMaxRange. 311 UInt32 Random::Generate(UInt32 range) { 312 // These constants are the same as are used in glibc's rand(3). 313 state_ = (1103515245U*state_ + 12345U) % kMaxRange; 314 315 GTEST_CHECK_(range > 0) 316 << "Cannot generate a number in the range [0, 0)."; 317 GTEST_CHECK_(range <= kMaxRange) 318 << "Generation of a number in [0, " << range << ") was requested, " 319 << "but this can only generate numbers in [0, " << kMaxRange << ")."; 320 321 // Converting via modulus introduces a bit of downward bias, but 322 // it's simple, and a linear congruential generator isn't too good 323 // to begin with. 324 return state_ % range; 325 } 326 327 // GTestIsInitialized() returns true iff the user has initialized 328 // Google Test. Useful for catching the user mistake of not initializing 329 // Google Test before calling RUN_ALL_TESTS(). 330 static bool GTestIsInitialized() { return GetArgvs().size() > 0; } 331 332 // Iterates over a vector of TestCases, keeping a running sum of the 333 // results of calling a given int-returning method on each. 334 // Returns the sum. 335 static int SumOverTestCaseList(const std::vector<TestCase*>& case_list, 336 int (TestCase::*method)() const) { 337 int sum = 0; 338 for (size_t i = 0; i < case_list.size(); i++) { 339 sum += (case_list[i]->*method)(); 340 } 341 return sum; 342 } 343 344 // Returns true iff the test case passed. 345 static bool TestCasePassed(const TestCase* test_case) { 346 return test_case->should_run() && test_case->Passed(); 347 } 348 349 // Returns true iff the test case failed. 350 static bool TestCaseFailed(const TestCase* test_case) { 351 return test_case->should_run() && test_case->Failed(); 352 } 353 354 // Returns true iff test_case contains at least one test that should 355 // run. 356 static bool ShouldRunTestCase(const TestCase* test_case) { 357 return test_case->should_run(); 358 } 359 360 // AssertHelper constructor. 361 AssertHelper::AssertHelper(TestPartResult::Type type, 362 const char* file, 363 int line, 364 const char* message) 365 : data_(new AssertHelperData(type, file, line, message)) { 366 } 367 368 AssertHelper::~AssertHelper() { 369 delete data_; 370 } 371 372 // Message assignment, for assertion streaming support. 373 void AssertHelper::operator=(const Message& message) const { 374 UnitTest::GetInstance()-> 375 AddTestPartResult(data_->type, data_->file, data_->line, 376 AppendUserMessage(data_->message, message), 377 UnitTest::GetInstance()->impl() 378 ->CurrentOsStackTraceExceptTop(1) 379 // Skips the stack frame for this function itself. 380 ); // NOLINT 381 } 382 383 // Mutex for linked pointers. 384 GTEST_API_ GTEST_DEFINE_STATIC_MUTEX_(g_linked_ptr_mutex); 385 386 // A copy of all command line arguments. Set by InitGoogleTest(). 387 ::std::vector<testing::internal::string> g_argvs; 388 389 const ::std::vector<testing::internal::string>& GetArgvs() { 390 #if defined(GTEST_CUSTOM_GET_ARGVS_) 391 return GTEST_CUSTOM_GET_ARGVS_(); 392 #else // defined(GTEST_CUSTOM_GET_ARGVS_) 393 return g_argvs; 394 #endif // defined(GTEST_CUSTOM_GET_ARGVS_) 395 } 396 397 // Returns the current application's name, removing directory path if that 398 // is present. 399 FilePath GetCurrentExecutableName() { 400 FilePath result; 401 402 #if GTEST_OS_WINDOWS 403 result.Set(FilePath(GetArgvs()[0]).RemoveExtension("exe")); 404 #else 405 result.Set(FilePath(GetArgvs()[0])); 406 #endif // GTEST_OS_WINDOWS 407 408 return result.RemoveDirectoryName(); 409 } 410 411 // Functions for processing the gtest_output flag. 412 413 // Returns the output format, or "" for normal printed output. 414 std::string UnitTestOptions::GetOutputFormat() { 415 const char* const gtest_output_flag = GTEST_FLAG(output).c_str(); 416 if (gtest_output_flag == NULL) return std::string(""); 417 418 const char* const colon = strchr(gtest_output_flag, ':'); 419 return (colon == NULL) ? 420 std::string(gtest_output_flag) : 421 std::string(gtest_output_flag, colon - gtest_output_flag); 422 } 423 424 // Returns the name of the requested output file, or the default if none 425 // was explicitly specified. 426 std::string UnitTestOptions::GetAbsolutePathToOutputFile() { 427 const char* const gtest_output_flag = GTEST_FLAG(output).c_str(); 428 if (gtest_output_flag == NULL) 429 return ""; 430 431 const char* const colon = strchr(gtest_output_flag, ':'); 432 if (colon == NULL) 433 return internal::FilePath::ConcatPaths( 434 internal::FilePath( 435 UnitTest::GetInstance()->original_working_dir()), 436 internal::FilePath(kDefaultOutputFile)).string(); 437 438 internal::FilePath output_name(colon + 1); 439 if (!output_name.IsAbsolutePath()) 440 // TODO(wan (at) google.com): on Windows \some\path is not an absolute 441 // path (as its meaning depends on the current drive), yet the 442 // following logic for turning it into an absolute path is wrong. 443 // Fix it. 444 output_name = internal::FilePath::ConcatPaths( 445 internal::FilePath(UnitTest::GetInstance()->original_working_dir()), 446 internal::FilePath(colon + 1)); 447 448 if (!output_name.IsDirectory()) 449 return output_name.string(); 450 451 internal::FilePath result(internal::FilePath::GenerateUniqueFileName( 452 output_name, internal::GetCurrentExecutableName(), 453 GetOutputFormat().c_str())); 454 return result.string(); 455 } 456 457 // Returns true iff the wildcard pattern matches the string. The 458 // first ':' or '\0' character in pattern marks the end of it. 459 // 460 // This recursive algorithm isn't very efficient, but is clear and 461 // works well enough for matching test names, which are short. 462 bool UnitTestOptions::PatternMatchesString(const char *pattern, 463 const char *str) { 464 switch (*pattern) { 465 case '\0': 466 case ':': // Either ':' or '\0' marks the end of the pattern. 467 return *str == '\0'; 468 case '?': // Matches any single character. 469 return *str != '\0' && PatternMatchesString(pattern + 1, str + 1); 470 case '*': // Matches any string (possibly empty) of characters. 471 return (*str != '\0' && PatternMatchesString(pattern, str + 1)) || 472 PatternMatchesString(pattern + 1, str); 473 default: // Non-special character. Matches itself. 474 return *pattern == *str && 475 PatternMatchesString(pattern + 1, str + 1); 476 } 477 } 478 479 bool UnitTestOptions::MatchesFilter( 480 const std::string& name, const char* filter) { 481 const char *cur_pattern = filter; 482 for (;;) { 483 if (PatternMatchesString(cur_pattern, name.c_str())) { 484 return true; 485 } 486 487 // Finds the next pattern in the filter. 488 cur_pattern = strchr(cur_pattern, ':'); 489 490 // Returns if no more pattern can be found. 491 if (cur_pattern == NULL) { 492 return false; 493 } 494 495 // Skips the pattern separater (the ':' character). 496 cur_pattern++; 497 } 498 } 499 500 // Returns true iff the user-specified filter matches the test case 501 // name and the test name. 502 bool UnitTestOptions::FilterMatchesTest(const std::string &test_case_name, 503 const std::string &test_name) { 504 const std::string& full_name = test_case_name + "." + test_name.c_str(); 505 506 // Split --gtest_filter at '-', if there is one, to separate into 507 // positive filter and negative filter portions 508 const char* const p = GTEST_FLAG(filter).c_str(); 509 const char* const dash = strchr(p, '-'); 510 std::string positive; 511 std::string negative; 512 if (dash == NULL) { 513 positive = GTEST_FLAG(filter).c_str(); // Whole string is a positive filter 514 negative = ""; 515 } else { 516 positive = std::string(p, dash); // Everything up to the dash 517 negative = std::string(dash + 1); // Everything after the dash 518 if (positive.empty()) { 519 // Treat '-test1' as the same as '*-test1' 520 positive = kUniversalFilter; 521 } 522 } 523 524 // A filter is a colon-separated list of patterns. It matches a 525 // test if any pattern in it matches the test. 526 return (MatchesFilter(full_name, positive.c_str()) && 527 !MatchesFilter(full_name, negative.c_str())); 528 } 529 530 #if GTEST_HAS_SEH 531 // Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the 532 // given SEH exception, or EXCEPTION_CONTINUE_SEARCH otherwise. 533 // This function is useful as an __except condition. 534 int UnitTestOptions::GTestShouldProcessSEH(DWORD exception_code) { 535 // Google Test should handle a SEH exception if: 536 // 1. the user wants it to, AND 537 // 2. this is not a breakpoint exception, AND 538 // 3. this is not a C++ exception (VC++ implements them via SEH, 539 // apparently). 540 // 541 // SEH exception code for C++ exceptions. 542 // (see http://support.microsoft.com/kb/185294 for more information). 543 const DWORD kCxxExceptionCode = 0xe06d7363; 544 545 bool should_handle = true; 546 547 if (!GTEST_FLAG(catch_exceptions)) 548 should_handle = false; 549 else if (exception_code == EXCEPTION_BREAKPOINT) 550 should_handle = false; 551 else if (exception_code == kCxxExceptionCode) 552 should_handle = false; 553 554 return should_handle ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH; 555 } 556 #endif // GTEST_HAS_SEH 557 558 } // namespace internal 559 560 // The c'tor sets this object as the test part result reporter used by 561 // Google Test. The 'result' parameter specifies where to report the 562 // results. Intercepts only failures from the current thread. 563 ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter( 564 TestPartResultArray* result) 565 : intercept_mode_(INTERCEPT_ONLY_CURRENT_THREAD), 566 result_(result) { 567 Init(); 568 } 569 570 // The c'tor sets this object as the test part result reporter used by 571 // Google Test. The 'result' parameter specifies where to report the 572 // results. 573 ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter( 574 InterceptMode intercept_mode, TestPartResultArray* result) 575 : intercept_mode_(intercept_mode), 576 result_(result) { 577 Init(); 578 } 579 580 void ScopedFakeTestPartResultReporter::Init() { 581 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 582 if (intercept_mode_ == INTERCEPT_ALL_THREADS) { 583 old_reporter_ = impl->GetGlobalTestPartResultReporter(); 584 impl->SetGlobalTestPartResultReporter(this); 585 } else { 586 old_reporter_ = impl->GetTestPartResultReporterForCurrentThread(); 587 impl->SetTestPartResultReporterForCurrentThread(this); 588 } 589 } 590 591 // The d'tor restores the test part result reporter used by Google Test 592 // before. 593 ScopedFakeTestPartResultReporter::~ScopedFakeTestPartResultReporter() { 594 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 595 if (intercept_mode_ == INTERCEPT_ALL_THREADS) { 596 impl->SetGlobalTestPartResultReporter(old_reporter_); 597 } else { 598 impl->SetTestPartResultReporterForCurrentThread(old_reporter_); 599 } 600 } 601 602 // Increments the test part result count and remembers the result. 603 // This method is from the TestPartResultReporterInterface interface. 604 void ScopedFakeTestPartResultReporter::ReportTestPartResult( 605 const TestPartResult& result) { 606 result_->Append(result); 607 } 608 609 namespace internal { 610 611 // Returns the type ID of ::testing::Test. We should always call this 612 // instead of GetTypeId< ::testing::Test>() to get the type ID of 613 // testing::Test. This is to work around a suspected linker bug when 614 // using Google Test as a framework on Mac OS X. The bug causes 615 // GetTypeId< ::testing::Test>() to return different values depending 616 // on whether the call is from the Google Test framework itself or 617 // from user test code. GetTestTypeId() is guaranteed to always 618 // return the same value, as it always calls GetTypeId<>() from the 619 // gtest.cc, which is within the Google Test framework. 620 TypeId GetTestTypeId() { 621 return GetTypeId<Test>(); 622 } 623 624 // The value of GetTestTypeId() as seen from within the Google Test 625 // library. This is solely for testing GetTestTypeId(). 626 extern const TypeId kTestTypeIdInGoogleTest = GetTestTypeId(); 627 628 // This predicate-formatter checks that 'results' contains a test part 629 // failure of the given type and that the failure message contains the 630 // given substring. 631 AssertionResult HasOneFailure(const char* /* results_expr */, 632 const char* /* type_expr */, 633 const char* /* substr_expr */, 634 const TestPartResultArray& results, 635 TestPartResult::Type type, 636 const string& substr) { 637 const std::string expected(type == TestPartResult::kFatalFailure ? 638 "1 fatal failure" : 639 "1 non-fatal failure"); 640 Message msg; 641 if (results.size() != 1) { 642 msg << "Expected: " << expected << "\n" 643 << " Actual: " << results.size() << " failures"; 644 for (int i = 0; i < results.size(); i++) { 645 msg << "\n" << results.GetTestPartResult(i); 646 } 647 return AssertionFailure() << msg; 648 } 649 650 const TestPartResult& r = results.GetTestPartResult(0); 651 if (r.type() != type) { 652 return AssertionFailure() << "Expected: " << expected << "\n" 653 << " Actual:\n" 654 << r; 655 } 656 657 if (strstr(r.message(), substr.c_str()) == NULL) { 658 return AssertionFailure() << "Expected: " << expected << " containing \"" 659 << substr << "\"\n" 660 << " Actual:\n" 661 << r; 662 } 663 664 return AssertionSuccess(); 665 } 666 667 // The constructor of SingleFailureChecker remembers where to look up 668 // test part results, what type of failure we expect, and what 669 // substring the failure message should contain. 670 SingleFailureChecker:: SingleFailureChecker( 671 const TestPartResultArray* results, 672 TestPartResult::Type type, 673 const string& substr) 674 : results_(results), 675 type_(type), 676 substr_(substr) {} 677 678 // The destructor of SingleFailureChecker verifies that the given 679 // TestPartResultArray contains exactly one failure that has the given 680 // type and contains the given substring. If that's not the case, a 681 // non-fatal failure will be generated. 682 SingleFailureChecker::~SingleFailureChecker() { 683 EXPECT_PRED_FORMAT3(HasOneFailure, *results_, type_, substr_); 684 } 685 686 DefaultGlobalTestPartResultReporter::DefaultGlobalTestPartResultReporter( 687 UnitTestImpl* unit_test) : unit_test_(unit_test) {} 688 689 void DefaultGlobalTestPartResultReporter::ReportTestPartResult( 690 const TestPartResult& result) { 691 unit_test_->current_test_result()->AddTestPartResult(result); 692 unit_test_->listeners()->repeater()->OnTestPartResult(result); 693 } 694 695 DefaultPerThreadTestPartResultReporter::DefaultPerThreadTestPartResultReporter( 696 UnitTestImpl* unit_test) : unit_test_(unit_test) {} 697 698 void DefaultPerThreadTestPartResultReporter::ReportTestPartResult( 699 const TestPartResult& result) { 700 unit_test_->GetGlobalTestPartResultReporter()->ReportTestPartResult(result); 701 } 702 703 // Returns the global test part result reporter. 704 TestPartResultReporterInterface* 705 UnitTestImpl::GetGlobalTestPartResultReporter() { 706 internal::MutexLock lock(&global_test_part_result_reporter_mutex_); 707 return global_test_part_result_repoter_; 708 } 709 710 // Sets the global test part result reporter. 711 void UnitTestImpl::SetGlobalTestPartResultReporter( 712 TestPartResultReporterInterface* reporter) { 713 internal::MutexLock lock(&global_test_part_result_reporter_mutex_); 714 global_test_part_result_repoter_ = reporter; 715 } 716 717 // Returns the test part result reporter for the current thread. 718 TestPartResultReporterInterface* 719 UnitTestImpl::GetTestPartResultReporterForCurrentThread() { 720 return per_thread_test_part_result_reporter_.get(); 721 } 722 723 // Sets the test part result reporter for the current thread. 724 void UnitTestImpl::SetTestPartResultReporterForCurrentThread( 725 TestPartResultReporterInterface* reporter) { 726 per_thread_test_part_result_reporter_.set(reporter); 727 } 728 729 // Gets the number of successful test cases. 730 int UnitTestImpl::successful_test_case_count() const { 731 return CountIf(test_cases_, TestCasePassed); 732 } 733 734 // Gets the number of failed test cases. 735 int UnitTestImpl::failed_test_case_count() const { 736 return CountIf(test_cases_, TestCaseFailed); 737 } 738 739 // Gets the number of all test cases. 740 int UnitTestImpl::total_test_case_count() const { 741 return static_cast<int>(test_cases_.size()); 742 } 743 744 // Gets the number of all test cases that contain at least one test 745 // that should run. 746 int UnitTestImpl::test_case_to_run_count() const { 747 return CountIf(test_cases_, ShouldRunTestCase); 748 } 749 750 // Gets the number of successful tests. 751 int UnitTestImpl::successful_test_count() const { 752 return SumOverTestCaseList(test_cases_, &TestCase::successful_test_count); 753 } 754 755 // Gets the number of failed tests. 756 int UnitTestImpl::failed_test_count() const { 757 return SumOverTestCaseList(test_cases_, &TestCase::failed_test_count); 758 } 759 760 // Gets the number of disabled tests that will be reported in the XML report. 761 int UnitTestImpl::reportable_disabled_test_count() const { 762 return SumOverTestCaseList(test_cases_, 763 &TestCase::reportable_disabled_test_count); 764 } 765 766 // Gets the number of disabled tests. 767 int UnitTestImpl::disabled_test_count() const { 768 return SumOverTestCaseList(test_cases_, &TestCase::disabled_test_count); 769 } 770 771 // Gets the number of tests to be printed in the XML report. 772 int UnitTestImpl::reportable_test_count() const { 773 return SumOverTestCaseList(test_cases_, &TestCase::reportable_test_count); 774 } 775 776 // Gets the number of all tests. 777 int UnitTestImpl::total_test_count() const { 778 return SumOverTestCaseList(test_cases_, &TestCase::total_test_count); 779 } 780 781 // Gets the number of tests that should run. 782 int UnitTestImpl::test_to_run_count() const { 783 return SumOverTestCaseList(test_cases_, &TestCase::test_to_run_count); 784 } 785 786 // Returns the current OS stack trace as an std::string. 787 // 788 // The maximum number of stack frames to be included is specified by 789 // the gtest_stack_trace_depth flag. The skip_count parameter 790 // specifies the number of top frames to be skipped, which doesn't 791 // count against the number of frames to be included. 792 // 793 // For example, if Foo() calls Bar(), which in turn calls 794 // CurrentOsStackTraceExceptTop(1), Foo() will be included in the 795 // trace but Bar() and CurrentOsStackTraceExceptTop() won't. 796 std::string UnitTestImpl::CurrentOsStackTraceExceptTop(int skip_count) { 797 return os_stack_trace_getter()->CurrentStackTrace( 798 static_cast<int>(GTEST_FLAG(stack_trace_depth)), 799 skip_count + 1 800 // Skips the user-specified number of frames plus this function 801 // itself. 802 ); // NOLINT 803 } 804 805 // Returns the current time in milliseconds. 806 TimeInMillis GetTimeInMillis() { 807 #if GTEST_OS_WINDOWS_MOBILE || defined(__BORLANDC__) 808 // Difference between 1970-01-01 and 1601-01-01 in milliseconds. 809 // http://analogous.blogspot.com/2005/04/epoch.html 810 const TimeInMillis kJavaEpochToWinFileTimeDelta = 811 static_cast<TimeInMillis>(116444736UL) * 100000UL; 812 const DWORD kTenthMicrosInMilliSecond = 10000; 813 814 SYSTEMTIME now_systime; 815 FILETIME now_filetime; 816 ULARGE_INTEGER now_int64; 817 // TODO(kenton (at) google.com): Shouldn't this just use 818 // GetSystemTimeAsFileTime()? 819 GetSystemTime(&now_systime); 820 if (SystemTimeToFileTime(&now_systime, &now_filetime)) { 821 now_int64.LowPart = now_filetime.dwLowDateTime; 822 now_int64.HighPart = now_filetime.dwHighDateTime; 823 now_int64.QuadPart = (now_int64.QuadPart / kTenthMicrosInMilliSecond) - 824 kJavaEpochToWinFileTimeDelta; 825 return now_int64.QuadPart; 826 } 827 return 0; 828 #elif GTEST_OS_WINDOWS && !GTEST_HAS_GETTIMEOFDAY_ 829 __timeb64 now; 830 831 // MSVC 8 deprecates _ftime64(), so we want to suppress warning 4996 832 // (deprecated function) there. 833 // TODO(kenton (at) google.com): Use GetTickCount()? Or use 834 // SystemTimeToFileTime() 835 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996) 836 _ftime64(&now); 837 GTEST_DISABLE_MSC_WARNINGS_POP_() 838 839 return static_cast<TimeInMillis>(now.time) * 1000 + now.millitm; 840 #elif GTEST_HAS_GETTIMEOFDAY_ 841 struct timeval now; 842 gettimeofday(&now, NULL); 843 return static_cast<TimeInMillis>(now.tv_sec) * 1000 + now.tv_usec / 1000; 844 #else 845 # error "Don't know how to get the current time on your system." 846 #endif 847 } 848 849 // Utilities 850 851 // class String. 852 853 #if GTEST_OS_WINDOWS_MOBILE 854 // Creates a UTF-16 wide string from the given ANSI string, allocating 855 // memory using new. The caller is responsible for deleting the return 856 // value using delete[]. Returns the wide string, or NULL if the 857 // input is NULL. 858 LPCWSTR String::AnsiToUtf16(const char* ansi) { 859 if (!ansi) return NULL; 860 const int length = strlen(ansi); 861 const int unicode_length = 862 MultiByteToWideChar(CP_ACP, 0, ansi, length, 863 NULL, 0); 864 WCHAR* unicode = new WCHAR[unicode_length + 1]; 865 MultiByteToWideChar(CP_ACP, 0, ansi, length, 866 unicode, unicode_length); 867 unicode[unicode_length] = 0; 868 return unicode; 869 } 870 871 // Creates an ANSI string from the given wide string, allocating 872 // memory using new. The caller is responsible for deleting the return 873 // value using delete[]. Returns the ANSI string, or NULL if the 874 // input is NULL. 875 const char* String::Utf16ToAnsi(LPCWSTR utf16_str) { 876 if (!utf16_str) return NULL; 877 const int ansi_length = 878 WideCharToMultiByte(CP_ACP, 0, utf16_str, -1, 879 NULL, 0, NULL, NULL); 880 char* ansi = new char[ansi_length + 1]; 881 WideCharToMultiByte(CP_ACP, 0, utf16_str, -1, 882 ansi, ansi_length, NULL, NULL); 883 ansi[ansi_length] = 0; 884 return ansi; 885 } 886 887 #endif // GTEST_OS_WINDOWS_MOBILE 888 889 // Compares two C strings. Returns true iff they have the same content. 890 // 891 // Unlike strcmp(), this function can handle NULL argument(s). A NULL 892 // C string is considered different to any non-NULL C string, 893 // including the empty string. 894 bool String::CStringEquals(const char * lhs, const char * rhs) { 895 if ( lhs == NULL ) return rhs == NULL; 896 897 if ( rhs == NULL ) return false; 898 899 return strcmp(lhs, rhs) == 0; 900 } 901 902 #if GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING 903 904 // Converts an array of wide chars to a narrow string using the UTF-8 905 // encoding, and streams the result to the given Message object. 906 static void StreamWideCharsToMessage(const wchar_t* wstr, size_t length, 907 Message* msg) { 908 for (size_t i = 0; i != length; ) { // NOLINT 909 if (wstr[i] != L'\0') { 910 *msg << WideStringToUtf8(wstr + i, static_cast<int>(length - i)); 911 while (i != length && wstr[i] != L'\0') 912 i++; 913 } else { 914 *msg << '\0'; 915 i++; 916 } 917 } 918 } 919 920 #endif // GTEST_HAS_STD_WSTRING || GTEST_HAS_GLOBAL_WSTRING 921 922 void SplitString(const ::std::string& str, char delimiter, 923 ::std::vector< ::std::string>* dest) { 924 ::std::vector< ::std::string> parsed; 925 ::std::string::size_type pos = 0; 926 while (::testing::internal::AlwaysTrue()) { 927 const ::std::string::size_type colon = str.find(delimiter, pos); 928 if (colon == ::std::string::npos) { 929 parsed.push_back(str.substr(pos)); 930 break; 931 } else { 932 parsed.push_back(str.substr(pos, colon - pos)); 933 pos = colon + 1; 934 } 935 } 936 dest->swap(parsed); 937 } 938 939 } // namespace internal 940 941 // Constructs an empty Message. 942 // We allocate the stringstream separately because otherwise each use of 943 // ASSERT/EXPECT in a procedure adds over 200 bytes to the procedure's 944 // stack frame leading to huge stack frames in some cases; gcc does not reuse 945 // the stack space. 946 Message::Message() : ss_(new ::std::stringstream) { 947 // By default, we want there to be enough precision when printing 948 // a double to a Message. 949 *ss_ << std::setprecision(std::numeric_limits<double>::digits10 + 2); 950 } 951 952 // These two overloads allow streaming a wide C string to a Message 953 // using the UTF-8 encoding. 954 Message& Message::operator <<(const wchar_t* wide_c_str) { 955 return *this << internal::String::ShowWideCString(wide_c_str); 956 } 957 Message& Message::operator <<(wchar_t* wide_c_str) { 958 return *this << internal::String::ShowWideCString(wide_c_str); 959 } 960 961 #if GTEST_HAS_STD_WSTRING 962 // Converts the given wide string to a narrow string using the UTF-8 963 // encoding, and streams the result to this Message object. 964 Message& Message::operator <<(const ::std::wstring& wstr) { 965 internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this); 966 return *this; 967 } 968 #endif // GTEST_HAS_STD_WSTRING 969 970 #if GTEST_HAS_GLOBAL_WSTRING 971 // Converts the given wide string to a narrow string using the UTF-8 972 // encoding, and streams the result to this Message object. 973 Message& Message::operator <<(const ::wstring& wstr) { 974 internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this); 975 return *this; 976 } 977 #endif // GTEST_HAS_GLOBAL_WSTRING 978 979 // Gets the text streamed to this object so far as an std::string. 980 // Each '\0' character in the buffer is replaced with "\\0". 981 std::string Message::GetString() const { 982 return internal::StringStreamToString(ss_.get()); 983 } 984 985 // AssertionResult constructors. 986 // Used in EXPECT_TRUE/FALSE(assertion_result). 987 AssertionResult::AssertionResult(const AssertionResult& other) 988 : success_(other.success_), 989 message_(other.message_.get() != NULL ? 990 new ::std::string(*other.message_) : 991 static_cast< ::std::string*>(NULL)) { 992 } 993 994 // Swaps two AssertionResults. 995 void AssertionResult::swap(AssertionResult& other) { 996 using std::swap; 997 swap(success_, other.success_); 998 swap(message_, other.message_); 999 } 1000 1001 // Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE. 1002 AssertionResult AssertionResult::operator!() const { 1003 AssertionResult negation(!success_); 1004 if (message_.get() != NULL) 1005 negation << *message_; 1006 return negation; 1007 } 1008 1009 // Makes a successful assertion result. 1010 AssertionResult AssertionSuccess() { 1011 return AssertionResult(true); 1012 } 1013 1014 // Makes a failed assertion result. 1015 AssertionResult AssertionFailure() { 1016 return AssertionResult(false); 1017 } 1018 1019 // Makes a failed assertion result with the given failure message. 1020 // Deprecated; use AssertionFailure() << message. 1021 AssertionResult AssertionFailure(const Message& message) { 1022 return AssertionFailure() << message; 1023 } 1024 1025 namespace internal { 1026 1027 namespace edit_distance { 1028 std::vector<EditType> CalculateOptimalEdits(const std::vector<size_t>& left, 1029 const std::vector<size_t>& right) { 1030 std::vector<std::vector<double> > costs( 1031 left.size() + 1, std::vector<double>(right.size() + 1)); 1032 std::vector<std::vector<EditType> > best_move( 1033 left.size() + 1, std::vector<EditType>(right.size() + 1)); 1034 1035 // Populate for empty right. 1036 for (size_t l_i = 0; l_i < costs.size(); ++l_i) { 1037 costs[l_i][0] = static_cast<double>(l_i); 1038 best_move[l_i][0] = kRemove; 1039 } 1040 // Populate for empty left. 1041 for (size_t r_i = 1; r_i < costs[0].size(); ++r_i) { 1042 costs[0][r_i] = static_cast<double>(r_i); 1043 best_move[0][r_i] = kAdd; 1044 } 1045 1046 for (size_t l_i = 0; l_i < left.size(); ++l_i) { 1047 for (size_t r_i = 0; r_i < right.size(); ++r_i) { 1048 if (left[l_i] == right[r_i]) { 1049 // Found a match. Consume it. 1050 costs[l_i + 1][r_i + 1] = costs[l_i][r_i]; 1051 best_move[l_i + 1][r_i + 1] = kMatch; 1052 continue; 1053 } 1054 1055 const double add = costs[l_i + 1][r_i]; 1056 const double remove = costs[l_i][r_i + 1]; 1057 const double replace = costs[l_i][r_i]; 1058 if (add < remove && add < replace) { 1059 costs[l_i + 1][r_i + 1] = add + 1; 1060 best_move[l_i + 1][r_i + 1] = kAdd; 1061 } else if (remove < add && remove < replace) { 1062 costs[l_i + 1][r_i + 1] = remove + 1; 1063 best_move[l_i + 1][r_i + 1] = kRemove; 1064 } else { 1065 // We make replace a little more expensive than add/remove to lower 1066 // their priority. 1067 costs[l_i + 1][r_i + 1] = replace + 1.00001; 1068 best_move[l_i + 1][r_i + 1] = kReplace; 1069 } 1070 } 1071 } 1072 1073 // Reconstruct the best path. We do it in reverse order. 1074 std::vector<EditType> best_path; 1075 for (size_t l_i = left.size(), r_i = right.size(); l_i > 0 || r_i > 0;) { 1076 EditType move = best_move[l_i][r_i]; 1077 best_path.push_back(move); 1078 l_i -= move != kAdd; 1079 r_i -= move != kRemove; 1080 } 1081 std::reverse(best_path.begin(), best_path.end()); 1082 return best_path; 1083 } 1084 1085 namespace { 1086 1087 // Helper class to convert string into ids with deduplication. 1088 class InternalStrings { 1089 public: 1090 size_t GetId(const std::string& str) { 1091 IdMap::iterator it = ids_.find(str); 1092 if (it != ids_.end()) return it->second; 1093 size_t id = ids_.size(); 1094 return ids_[str] = id; 1095 } 1096 1097 private: 1098 typedef std::map<std::string, size_t> IdMap; 1099 IdMap ids_; 1100 }; 1101 1102 } // namespace 1103 1104 std::vector<EditType> CalculateOptimalEdits( 1105 const std::vector<std::string>& left, 1106 const std::vector<std::string>& right) { 1107 std::vector<size_t> left_ids, right_ids; 1108 { 1109 InternalStrings intern_table; 1110 for (size_t i = 0; i < left.size(); ++i) { 1111 left_ids.push_back(intern_table.GetId(left[i])); 1112 } 1113 for (size_t i = 0; i < right.size(); ++i) { 1114 right_ids.push_back(intern_table.GetId(right[i])); 1115 } 1116 } 1117 return CalculateOptimalEdits(left_ids, right_ids); 1118 } 1119 1120 namespace { 1121 1122 // Helper class that holds the state for one hunk and prints it out to the 1123 // stream. 1124 // It reorders adds/removes when possible to group all removes before all 1125 // adds. It also adds the hunk header before printint into the stream. 1126 class Hunk { 1127 public: 1128 Hunk(size_t left_start, size_t right_start) 1129 : left_start_(left_start), 1130 right_start_(right_start), 1131 adds_(), 1132 removes_(), 1133 common_() {} 1134 1135 void PushLine(char edit, const char* line) { 1136 switch (edit) { 1137 case ' ': 1138 ++common_; 1139 FlushEdits(); 1140 hunk_.push_back(std::make_pair(' ', line)); 1141 break; 1142 case '-': 1143 ++removes_; 1144 hunk_removes_.push_back(std::make_pair('-', line)); 1145 break; 1146 case '+': 1147 ++adds_; 1148 hunk_adds_.push_back(std::make_pair('+', line)); 1149 break; 1150 } 1151 } 1152 1153 void PrintTo(std::ostream* os) { 1154 PrintHeader(os); 1155 FlushEdits(); 1156 for (std::list<std::pair<char, const char*> >::const_iterator it = 1157 hunk_.begin(); 1158 it != hunk_.end(); ++it) { 1159 *os << it->first << it->second << "\n"; 1160 } 1161 } 1162 1163 bool has_edits() const { return adds_ || removes_; } 1164 1165 private: 1166 void FlushEdits() { 1167 hunk_.splice(hunk_.end(), hunk_removes_); 1168 hunk_.splice(hunk_.end(), hunk_adds_); 1169 } 1170 1171 // Print a unified diff header for one hunk. 1172 // The format is 1173 // "@@ -<left_start>,<left_length> +<right_start>,<right_length> @@" 1174 // where the left/right parts are ommitted if unnecessary. 1175 void PrintHeader(std::ostream* ss) const { 1176 *ss << "@@ "; 1177 if (removes_) { 1178 *ss << "-" << left_start_ << "," << (removes_ + common_); 1179 } 1180 if (removes_ && adds_) { 1181 *ss << " "; 1182 } 1183 if (adds_) { 1184 *ss << "+" << right_start_ << "," << (adds_ + common_); 1185 } 1186 *ss << " @@\n"; 1187 } 1188 1189 size_t left_start_, right_start_; 1190 size_t adds_, removes_, common_; 1191 std::list<std::pair<char, const char*> > hunk_, hunk_adds_, hunk_removes_; 1192 }; 1193 1194 } // namespace 1195 1196 // Create a list of diff hunks in Unified diff format. 1197 // Each hunk has a header generated by PrintHeader above plus a body with 1198 // lines prefixed with ' ' for no change, '-' for deletion and '+' for 1199 // addition. 1200 // 'context' represents the desired unchanged prefix/suffix around the diff. 1201 // If two hunks are close enough that their contexts overlap, then they are 1202 // joined into one hunk. 1203 std::string CreateUnifiedDiff(const std::vector<std::string>& left, 1204 const std::vector<std::string>& right, 1205 size_t context) { 1206 const std::vector<EditType> edits = CalculateOptimalEdits(left, right); 1207 1208 size_t l_i = 0, r_i = 0, edit_i = 0; 1209 std::stringstream ss; 1210 while (edit_i < edits.size()) { 1211 // Find first edit. 1212 while (edit_i < edits.size() && edits[edit_i] == kMatch) { 1213 ++l_i; 1214 ++r_i; 1215 ++edit_i; 1216 } 1217 1218 // Find the first line to include in the hunk. 1219 const size_t prefix_context = std::min(l_i, context); 1220 Hunk hunk(l_i - prefix_context + 1, r_i - prefix_context + 1); 1221 for (size_t i = prefix_context; i > 0; --i) { 1222 hunk.PushLine(' ', left[l_i - i].c_str()); 1223 } 1224 1225 // Iterate the edits until we found enough suffix for the hunk or the input 1226 // is over. 1227 size_t n_suffix = 0; 1228 for (; edit_i < edits.size(); ++edit_i) { 1229 if (n_suffix >= context) { 1230 // Continue only if the next hunk is very close. 1231 std::vector<EditType>::const_iterator it = edits.begin() + edit_i; 1232 while (it != edits.end() && *it == kMatch) ++it; 1233 if (it == edits.end() || (it - edits.begin()) - edit_i >= context) { 1234 // There is no next edit or it is too far away. 1235 break; 1236 } 1237 } 1238 1239 EditType edit = edits[edit_i]; 1240 // Reset count when a non match is found. 1241 n_suffix = edit == kMatch ? n_suffix + 1 : 0; 1242 1243 if (edit == kMatch || edit == kRemove || edit == kReplace) { 1244 hunk.PushLine(edit == kMatch ? ' ' : '-', left[l_i].c_str()); 1245 } 1246 if (edit == kAdd || edit == kReplace) { 1247 hunk.PushLine('+', right[r_i].c_str()); 1248 } 1249 1250 // Advance indices, depending on edit type. 1251 l_i += edit != kAdd; 1252 r_i += edit != kRemove; 1253 } 1254 1255 if (!hunk.has_edits()) { 1256 // We are done. We don't want this hunk. 1257 break; 1258 } 1259 1260 hunk.PrintTo(&ss); 1261 } 1262 return ss.str(); 1263 } 1264 1265 } // namespace edit_distance 1266 1267 namespace { 1268 1269 // The string representation of the values received in EqFailure() are already 1270 // escaped. Split them on escaped '\n' boundaries. Leave all other escaped 1271 // characters the same. 1272 std::vector<std::string> SplitEscapedString(const std::string& str) { 1273 std::vector<std::string> lines; 1274 size_t start = 0, end = str.size(); 1275 if (end > 2 && str[0] == '"' && str[end - 1] == '"') { 1276 ++start; 1277 --end; 1278 } 1279 bool escaped = false; 1280 for (size_t i = start; i + 1 < end; ++i) { 1281 if (escaped) { 1282 escaped = false; 1283 if (str[i] == 'n') { 1284 lines.push_back(str.substr(start, i - start - 1)); 1285 start = i + 1; 1286 } 1287 } else { 1288 escaped = str[i] == '\\'; 1289 } 1290 } 1291 lines.push_back(str.substr(start, end - start)); 1292 return lines; 1293 } 1294 1295 } // namespace 1296 1297 // Constructs and returns the message for an equality assertion 1298 // (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure. 1299 // 1300 // The first four parameters are the expressions used in the assertion 1301 // and their values, as strings. For example, for ASSERT_EQ(foo, bar) 1302 // where foo is 5 and bar is 6, we have: 1303 // 1304 // lhs_expression: "foo" 1305 // rhs_expression: "bar" 1306 // lhs_value: "5" 1307 // rhs_value: "6" 1308 // 1309 // The ignoring_case parameter is true iff the assertion is a 1310 // *_STRCASEEQ*. When it's true, the string "Ignoring case" will 1311 // be inserted into the message. 1312 AssertionResult EqFailure(const char* lhs_expression, 1313 const char* rhs_expression, 1314 const std::string& lhs_value, 1315 const std::string& rhs_value, 1316 bool ignoring_case) { 1317 Message msg; 1318 msg << " Expected: " << lhs_expression; 1319 if (lhs_value != lhs_expression) { 1320 msg << "\n Which is: " << lhs_value; 1321 } 1322 msg << "\nTo be equal to: " << rhs_expression; 1323 if (rhs_value != rhs_expression) { 1324 msg << "\n Which is: " << rhs_value; 1325 } 1326 1327 if (ignoring_case) { 1328 msg << "\nIgnoring case"; 1329 } 1330 1331 if (!lhs_value.empty() && !rhs_value.empty()) { 1332 const std::vector<std::string> lhs_lines = 1333 SplitEscapedString(lhs_value); 1334 const std::vector<std::string> rhs_lines = 1335 SplitEscapedString(rhs_value); 1336 if (lhs_lines.size() > 1 || rhs_lines.size() > 1) { 1337 msg << "\nWith diff:\n" 1338 << edit_distance::CreateUnifiedDiff(lhs_lines, rhs_lines); 1339 } 1340 } 1341 1342 return AssertionFailure() << msg; 1343 } 1344 1345 // Constructs a failure message for Boolean assertions such as EXPECT_TRUE. 1346 std::string GetBoolAssertionFailureMessage( 1347 const AssertionResult& assertion_result, 1348 const char* expression_text, 1349 const char* actual_predicate_value, 1350 const char* expected_predicate_value) { 1351 const char* actual_message = assertion_result.message(); 1352 Message msg; 1353 msg << "Value of: " << expression_text 1354 << "\n Actual: " << actual_predicate_value; 1355 if (actual_message[0] != '\0') 1356 msg << " (" << actual_message << ")"; 1357 msg << "\nExpected: " << expected_predicate_value; 1358 return msg.GetString(); 1359 } 1360 1361 // Helper function for implementing ASSERT_NEAR. 1362 AssertionResult DoubleNearPredFormat(const char* expr1, 1363 const char* expr2, 1364 const char* abs_error_expr, 1365 double val1, 1366 double val2, 1367 double abs_error) { 1368 const double diff = fabs(val1 - val2); 1369 if (diff <= abs_error) return AssertionSuccess(); 1370 1371 // TODO(wan): do not print the value of an expression if it's 1372 // already a literal. 1373 return AssertionFailure() 1374 << "The difference between " << expr1 << " and " << expr2 1375 << " is " << diff << ", which exceeds " << abs_error_expr << ", where\n" 1376 << expr1 << " evaluates to " << val1 << ",\n" 1377 << expr2 << " evaluates to " << val2 << ", and\n" 1378 << abs_error_expr << " evaluates to " << abs_error << "."; 1379 } 1380 1381 1382 // Helper template for implementing FloatLE() and DoubleLE(). 1383 template <typename RawType> 1384 AssertionResult FloatingPointLE(const char* expr1, 1385 const char* expr2, 1386 RawType val1, 1387 RawType val2) { 1388 // Returns success if val1 is less than val2, 1389 if (val1 < val2) { 1390 return AssertionSuccess(); 1391 } 1392 1393 // or if val1 is almost equal to val2. 1394 const FloatingPoint<RawType> lhs(val1), rhs(val2); 1395 if (lhs.AlmostEquals(rhs)) { 1396 return AssertionSuccess(); 1397 } 1398 1399 // Note that the above two checks will both fail if either val1 or 1400 // val2 is NaN, as the IEEE floating-point standard requires that 1401 // any predicate involving a NaN must return false. 1402 1403 ::std::stringstream val1_ss; 1404 val1_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2) 1405 << val1; 1406 1407 ::std::stringstream val2_ss; 1408 val2_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2) 1409 << val2; 1410 1411 return AssertionFailure() 1412 << "Expected: (" << expr1 << ") <= (" << expr2 << ")\n" 1413 << " Actual: " << StringStreamToString(&val1_ss) << " vs " 1414 << StringStreamToString(&val2_ss); 1415 } 1416 1417 } // namespace internal 1418 1419 // Asserts that val1 is less than, or almost equal to, val2. Fails 1420 // otherwise. In particular, it fails if either val1 or val2 is NaN. 1421 AssertionResult FloatLE(const char* expr1, const char* expr2, 1422 float val1, float val2) { 1423 return internal::FloatingPointLE<float>(expr1, expr2, val1, val2); 1424 } 1425 1426 // Asserts that val1 is less than, or almost equal to, val2. Fails 1427 // otherwise. In particular, it fails if either val1 or val2 is NaN. 1428 AssertionResult DoubleLE(const char* expr1, const char* expr2, 1429 double val1, double val2) { 1430 return internal::FloatingPointLE<double>(expr1, expr2, val1, val2); 1431 } 1432 1433 namespace internal { 1434 1435 // The helper function for {ASSERT|EXPECT}_EQ with int or enum 1436 // arguments. 1437 AssertionResult CmpHelperEQ(const char* lhs_expression, 1438 const char* rhs_expression, 1439 BiggestInt lhs, 1440 BiggestInt rhs) { 1441 if (lhs == rhs) { 1442 return AssertionSuccess(); 1443 } 1444 1445 return EqFailure(lhs_expression, 1446 rhs_expression, 1447 FormatForComparisonFailureMessage(lhs, rhs), 1448 FormatForComparisonFailureMessage(rhs, lhs), 1449 false); 1450 } 1451 1452 // A macro for implementing the helper functions needed to implement 1453 // ASSERT_?? and EXPECT_?? with integer or enum arguments. It is here 1454 // just to avoid copy-and-paste of similar code. 1455 #define GTEST_IMPL_CMP_HELPER_(op_name, op)\ 1456 AssertionResult CmpHelper##op_name(const char* expr1, const char* expr2, \ 1457 BiggestInt val1, BiggestInt val2) {\ 1458 if (val1 op val2) {\ 1459 return AssertionSuccess();\ 1460 } else {\ 1461 return AssertionFailure() \ 1462 << "Expected: (" << expr1 << ") " #op " (" << expr2\ 1463 << "), actual: " << FormatForComparisonFailureMessage(val1, val2)\ 1464 << " vs " << FormatForComparisonFailureMessage(val2, val1);\ 1465 }\ 1466 } 1467 1468 // Implements the helper function for {ASSERT|EXPECT}_NE with int or 1469 // enum arguments. 1470 GTEST_IMPL_CMP_HELPER_(NE, !=) 1471 // Implements the helper function for {ASSERT|EXPECT}_LE with int or 1472 // enum arguments. 1473 GTEST_IMPL_CMP_HELPER_(LE, <=) 1474 // Implements the helper function for {ASSERT|EXPECT}_LT with int or 1475 // enum arguments. 1476 GTEST_IMPL_CMP_HELPER_(LT, < ) 1477 // Implements the helper function for {ASSERT|EXPECT}_GE with int or 1478 // enum arguments. 1479 GTEST_IMPL_CMP_HELPER_(GE, >=) 1480 // Implements the helper function for {ASSERT|EXPECT}_GT with int or 1481 // enum arguments. 1482 GTEST_IMPL_CMP_HELPER_(GT, > ) 1483 1484 #undef GTEST_IMPL_CMP_HELPER_ 1485 1486 // The helper function for {ASSERT|EXPECT}_STREQ. 1487 AssertionResult CmpHelperSTREQ(const char* lhs_expression, 1488 const char* rhs_expression, 1489 const char* lhs, 1490 const char* rhs) { 1491 if (String::CStringEquals(lhs, rhs)) { 1492 return AssertionSuccess(); 1493 } 1494 1495 return EqFailure(lhs_expression, 1496 rhs_expression, 1497 PrintToString(lhs), 1498 PrintToString(rhs), 1499 false); 1500 } 1501 1502 // The helper function for {ASSERT|EXPECT}_STRCASEEQ. 1503 AssertionResult CmpHelperSTRCASEEQ(const char* lhs_expression, 1504 const char* rhs_expression, 1505 const char* lhs, 1506 const char* rhs) { 1507 if (String::CaseInsensitiveCStringEquals(lhs, rhs)) { 1508 return AssertionSuccess(); 1509 } 1510 1511 return EqFailure(lhs_expression, 1512 rhs_expression, 1513 PrintToString(lhs), 1514 PrintToString(rhs), 1515 true); 1516 } 1517 1518 // The helper function for {ASSERT|EXPECT}_STRNE. 1519 AssertionResult CmpHelperSTRNE(const char* s1_expression, 1520 const char* s2_expression, 1521 const char* s1, 1522 const char* s2) { 1523 if (!String::CStringEquals(s1, s2)) { 1524 return AssertionSuccess(); 1525 } else { 1526 return AssertionFailure() << "Expected: (" << s1_expression << ") != (" 1527 << s2_expression << "), actual: \"" 1528 << s1 << "\" vs \"" << s2 << "\""; 1529 } 1530 } 1531 1532 // The helper function for {ASSERT|EXPECT}_STRCASENE. 1533 AssertionResult CmpHelperSTRCASENE(const char* s1_expression, 1534 const char* s2_expression, 1535 const char* s1, 1536 const char* s2) { 1537 if (!String::CaseInsensitiveCStringEquals(s1, s2)) { 1538 return AssertionSuccess(); 1539 } else { 1540 return AssertionFailure() 1541 << "Expected: (" << s1_expression << ") != (" 1542 << s2_expression << ") (ignoring case), actual: \"" 1543 << s1 << "\" vs \"" << s2 << "\""; 1544 } 1545 } 1546 1547 } // namespace internal 1548 1549 namespace { 1550 1551 // Helper functions for implementing IsSubString() and IsNotSubstring(). 1552 1553 // This group of overloaded functions return true iff needle is a 1554 // substring of haystack. NULL is considered a substring of itself 1555 // only. 1556 1557 bool IsSubstringPred(const char* needle, const char* haystack) { 1558 if (needle == NULL || haystack == NULL) 1559 return needle == haystack; 1560 1561 return strstr(haystack, needle) != NULL; 1562 } 1563 1564 bool IsSubstringPred(const wchar_t* needle, const wchar_t* haystack) { 1565 if (needle == NULL || haystack == NULL) 1566 return needle == haystack; 1567 1568 return wcsstr(haystack, needle) != NULL; 1569 } 1570 1571 // StringType here can be either ::std::string or ::std::wstring. 1572 template <typename StringType> 1573 bool IsSubstringPred(const StringType& needle, 1574 const StringType& haystack) { 1575 return haystack.find(needle) != StringType::npos; 1576 } 1577 1578 // This function implements either IsSubstring() or IsNotSubstring(), 1579 // depending on the value of the expected_to_be_substring parameter. 1580 // StringType here can be const char*, const wchar_t*, ::std::string, 1581 // or ::std::wstring. 1582 template <typename StringType> 1583 AssertionResult IsSubstringImpl( 1584 bool expected_to_be_substring, 1585 const char* needle_expr, const char* haystack_expr, 1586 const StringType& needle, const StringType& haystack) { 1587 if (IsSubstringPred(needle, haystack) == expected_to_be_substring) 1588 return AssertionSuccess(); 1589 1590 const bool is_wide_string = sizeof(needle[0]) > 1; 1591 const char* const begin_string_quote = is_wide_string ? "L\"" : "\""; 1592 return AssertionFailure() 1593 << "Value of: " << needle_expr << "\n" 1594 << " Actual: " << begin_string_quote << needle << "\"\n" 1595 << "Expected: " << (expected_to_be_substring ? "" : "not ") 1596 << "a substring of " << haystack_expr << "\n" 1597 << "Which is: " << begin_string_quote << haystack << "\""; 1598 } 1599 1600 } // namespace 1601 1602 // IsSubstring() and IsNotSubstring() check whether needle is a 1603 // substring of haystack (NULL is considered a substring of itself 1604 // only), and return an appropriate error message when they fail. 1605 1606 AssertionResult IsSubstring( 1607 const char* needle_expr, const char* haystack_expr, 1608 const char* needle, const char* haystack) { 1609 return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack); 1610 } 1611 1612 AssertionResult IsSubstring( 1613 const char* needle_expr, const char* haystack_expr, 1614 const wchar_t* needle, const wchar_t* haystack) { 1615 return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack); 1616 } 1617 1618 AssertionResult IsNotSubstring( 1619 const char* needle_expr, const char* haystack_expr, 1620 const char* needle, const char* haystack) { 1621 return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack); 1622 } 1623 1624 AssertionResult IsNotSubstring( 1625 const char* needle_expr, const char* haystack_expr, 1626 const wchar_t* needle, const wchar_t* haystack) { 1627 return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack); 1628 } 1629 1630 AssertionResult IsSubstring( 1631 const char* needle_expr, const char* haystack_expr, 1632 const ::std::string& needle, const ::std::string& haystack) { 1633 return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack); 1634 } 1635 1636 AssertionResult IsNotSubstring( 1637 const char* needle_expr, const char* haystack_expr, 1638 const ::std::string& needle, const ::std::string& haystack) { 1639 return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack); 1640 } 1641 1642 #if GTEST_HAS_STD_WSTRING 1643 AssertionResult IsSubstring( 1644 const char* needle_expr, const char* haystack_expr, 1645 const ::std::wstring& needle, const ::std::wstring& haystack) { 1646 return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack); 1647 } 1648 1649 AssertionResult IsNotSubstring( 1650 const char* needle_expr, const char* haystack_expr, 1651 const ::std::wstring& needle, const ::std::wstring& haystack) { 1652 return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack); 1653 } 1654 #endif // GTEST_HAS_STD_WSTRING 1655 1656 namespace internal { 1657 1658 #if GTEST_OS_WINDOWS 1659 1660 namespace { 1661 1662 // Helper function for IsHRESULT{SuccessFailure} predicates 1663 AssertionResult HRESULTFailureHelper(const char* expr, 1664 const char* expected, 1665 long hr) { // NOLINT 1666 # if GTEST_OS_WINDOWS_MOBILE 1667 1668 // Windows CE doesn't support FormatMessage. 1669 const char error_text[] = ""; 1670 1671 # else 1672 1673 // Looks up the human-readable system message for the HRESULT code 1674 // and since we're not passing any params to FormatMessage, we don't 1675 // want inserts expanded. 1676 const DWORD kFlags = FORMAT_MESSAGE_FROM_SYSTEM | 1677 FORMAT_MESSAGE_IGNORE_INSERTS; 1678 const DWORD kBufSize = 4096; 1679 // Gets the system's human readable message string for this HRESULT. 1680 char error_text[kBufSize] = { '\0' }; 1681 DWORD message_length = ::FormatMessageA(kFlags, 1682 0, // no source, we're asking system 1683 hr, // the error 1684 0, // no line width restrictions 1685 error_text, // output buffer 1686 kBufSize, // buf size 1687 NULL); // no arguments for inserts 1688 // Trims tailing white space (FormatMessage leaves a trailing CR-LF) 1689 for (; message_length && IsSpace(error_text[message_length - 1]); 1690 --message_length) { 1691 error_text[message_length - 1] = '\0'; 1692 } 1693 1694 # endif // GTEST_OS_WINDOWS_MOBILE 1695 1696 const std::string error_hex("0x" + String::FormatHexInt(hr)); 1697 return ::testing::AssertionFailure() 1698 << "Expected: " << expr << " " << expected << ".\n" 1699 << " Actual: " << error_hex << " " << error_text << "\n"; 1700 } 1701 1702 } // namespace 1703 1704 AssertionResult IsHRESULTSuccess(const char* expr, long hr) { // NOLINT 1705 if (SUCCEEDED(hr)) { 1706 return AssertionSuccess(); 1707 } 1708 return HRESULTFailureHelper(expr, "succeeds", hr); 1709 } 1710 1711 AssertionResult IsHRESULTFailure(const char* expr, long hr) { // NOLINT 1712 if (FAILED(hr)) { 1713 return AssertionSuccess(); 1714 } 1715 return HRESULTFailureHelper(expr, "fails", hr); 1716 } 1717 1718 #endif // GTEST_OS_WINDOWS 1719 1720 // Utility functions for encoding Unicode text (wide strings) in 1721 // UTF-8. 1722 1723 // A Unicode code-point can have upto 21 bits, and is encoded in UTF-8 1724 // like this: 1725 // 1726 // Code-point length Encoding 1727 // 0 - 7 bits 0xxxxxxx 1728 // 8 - 11 bits 110xxxxx 10xxxxxx 1729 // 12 - 16 bits 1110xxxx 10xxxxxx 10xxxxxx 1730 // 17 - 21 bits 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 1731 1732 // The maximum code-point a one-byte UTF-8 sequence can represent. 1733 const UInt32 kMaxCodePoint1 = (static_cast<UInt32>(1) << 7) - 1; 1734 1735 // The maximum code-point a two-byte UTF-8 sequence can represent. 1736 const UInt32 kMaxCodePoint2 = (static_cast<UInt32>(1) << (5 + 6)) - 1; 1737 1738 // The maximum code-point a three-byte UTF-8 sequence can represent. 1739 const UInt32 kMaxCodePoint3 = (static_cast<UInt32>(1) << (4 + 2*6)) - 1; 1740 1741 // The maximum code-point a four-byte UTF-8 sequence can represent. 1742 const UInt32 kMaxCodePoint4 = (static_cast<UInt32>(1) << (3 + 3*6)) - 1; 1743 1744 // Chops off the n lowest bits from a bit pattern. Returns the n 1745 // lowest bits. As a side effect, the original bit pattern will be 1746 // shifted to the right by n bits. 1747 inline UInt32 ChopLowBits(UInt32* bits, int n) { 1748 const UInt32 low_bits = *bits & ((static_cast<UInt32>(1) << n) - 1); 1749 *bits >>= n; 1750 return low_bits; 1751 } 1752 1753 // Converts a Unicode code point to a narrow string in UTF-8 encoding. 1754 // code_point parameter is of type UInt32 because wchar_t may not be 1755 // wide enough to contain a code point. 1756 // If the code_point is not a valid Unicode code point 1757 // (i.e. outside of Unicode range U+0 to U+10FFFF) it will be converted 1758 // to "(Invalid Unicode 0xXXXXXXXX)". 1759 std::string CodePointToUtf8(UInt32 code_point) { 1760 if (code_point > kMaxCodePoint4) { 1761 return "(Invalid Unicode 0x" + String::FormatHexInt(code_point) + ")"; 1762 } 1763 1764 char str[5]; // Big enough for the largest valid code point. 1765 if (code_point <= kMaxCodePoint1) { 1766 str[1] = '\0'; 1767 str[0] = static_cast<char>(code_point); // 0xxxxxxx 1768 } else if (code_point <= kMaxCodePoint2) { 1769 str[2] = '\0'; 1770 str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1771 str[0] = static_cast<char>(0xC0 | code_point); // 110xxxxx 1772 } else if (code_point <= kMaxCodePoint3) { 1773 str[3] = '\0'; 1774 str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1775 str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1776 str[0] = static_cast<char>(0xE0 | code_point); // 1110xxxx 1777 } else { // code_point <= kMaxCodePoint4 1778 str[4] = '\0'; 1779 str[3] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1780 str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1781 str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx 1782 str[0] = static_cast<char>(0xF0 | code_point); // 11110xxx 1783 } 1784 return str; 1785 } 1786 1787 // The following two functions only make sense if the the system 1788 // uses UTF-16 for wide string encoding. All supported systems 1789 // with 16 bit wchar_t (Windows, Cygwin, Symbian OS) do use UTF-16. 1790 1791 // Determines if the arguments constitute UTF-16 surrogate pair 1792 // and thus should be combined into a single Unicode code point 1793 // using CreateCodePointFromUtf16SurrogatePair. 1794 inline bool IsUtf16SurrogatePair(wchar_t first, wchar_t second) { 1795 return sizeof(wchar_t) == 2 && 1796 (first & 0xFC00) == 0xD800 && (second & 0xFC00) == 0xDC00; 1797 } 1798 1799 // Creates a Unicode code point from UTF16 surrogate pair. 1800 inline UInt32 CreateCodePointFromUtf16SurrogatePair(wchar_t first, 1801 wchar_t second) { 1802 const UInt32 mask = (1 << 10) - 1; 1803 return (sizeof(wchar_t) == 2) ? 1804 (((first & mask) << 10) | (second & mask)) + 0x10000 : 1805 // This function should not be called when the condition is 1806 // false, but we provide a sensible default in case it is. 1807 static_cast<UInt32>(first); 1808 } 1809 1810 // Converts a wide string to a narrow string in UTF-8 encoding. 1811 // The wide string is assumed to have the following encoding: 1812 // UTF-16 if sizeof(wchar_t) == 2 (on Windows, Cygwin, Symbian OS) 1813 // UTF-32 if sizeof(wchar_t) == 4 (on Linux) 1814 // Parameter str points to a null-terminated wide string. 1815 // Parameter num_chars may additionally limit the number 1816 // of wchar_t characters processed. -1 is used when the entire string 1817 // should be processed. 1818 // If the string contains code points that are not valid Unicode code points 1819 // (i.e. outside of Unicode range U+0 to U+10FFFF) they will be output 1820 // as '(Invalid Unicode 0xXXXXXXXX)'. If the string is in UTF16 encoding 1821 // and contains invalid UTF-16 surrogate pairs, values in those pairs 1822 // will be encoded as individual Unicode characters from Basic Normal Plane. 1823 std::string WideStringToUtf8(const wchar_t* str, int num_chars) { 1824 if (num_chars == -1) 1825 num_chars = static_cast<int>(wcslen(str)); 1826 1827 ::std::stringstream stream; 1828 for (int i = 0; i < num_chars; ++i) { 1829 UInt32 unicode_code_point; 1830 1831 if (str[i] == L'\0') { 1832 break; 1833 } else if (i + 1 < num_chars && IsUtf16SurrogatePair(str[i], str[i + 1])) { 1834 unicode_code_point = CreateCodePointFromUtf16SurrogatePair(str[i], 1835 str[i + 1]); 1836 i++; 1837 } else { 1838 unicode_code_point = static_cast<UInt32>(str[i]); 1839 } 1840 1841 stream << CodePointToUtf8(unicode_code_point); 1842 } 1843 return StringStreamToString(&stream); 1844 } 1845 1846 // Converts a wide C string to an std::string using the UTF-8 encoding. 1847 // NULL will be converted to "(null)". 1848 std::string String::ShowWideCString(const wchar_t * wide_c_str) { 1849 if (wide_c_str == NULL) return "(null)"; 1850 1851 return internal::WideStringToUtf8(wide_c_str, -1); 1852 } 1853 1854 // Compares two wide C strings. Returns true iff they have the same 1855 // content. 1856 // 1857 // Unlike wcscmp(), this function can handle NULL argument(s). A NULL 1858 // C string is considered different to any non-NULL C string, 1859 // including the empty string. 1860 bool String::WideCStringEquals(const wchar_t * lhs, const wchar_t * rhs) { 1861 if (lhs == NULL) return rhs == NULL; 1862 1863 if (rhs == NULL) return false; 1864 1865 return wcscmp(lhs, rhs) == 0; 1866 } 1867 1868 // Helper function for *_STREQ on wide strings. 1869 AssertionResult CmpHelperSTREQ(const char* lhs_expression, 1870 const char* rhs_expression, 1871 const wchar_t* lhs, 1872 const wchar_t* rhs) { 1873 if (String::WideCStringEquals(lhs, rhs)) { 1874 return AssertionSuccess(); 1875 } 1876 1877 return EqFailure(lhs_expression, 1878 rhs_expression, 1879 PrintToString(lhs), 1880 PrintToString(rhs), 1881 false); 1882 } 1883 1884 // Helper function for *_STRNE on wide strings. 1885 AssertionResult CmpHelperSTRNE(const char* s1_expression, 1886 const char* s2_expression, 1887 const wchar_t* s1, 1888 const wchar_t* s2) { 1889 if (!String::WideCStringEquals(s1, s2)) { 1890 return AssertionSuccess(); 1891 } 1892 1893 return AssertionFailure() << "Expected: (" << s1_expression << ") != (" 1894 << s2_expression << "), actual: " 1895 << PrintToString(s1) 1896 << " vs " << PrintToString(s2); 1897 } 1898 1899 // Compares two C strings, ignoring case. Returns true iff they have 1900 // the same content. 1901 // 1902 // Unlike strcasecmp(), this function can handle NULL argument(s). A 1903 // NULL C string is considered different to any non-NULL C string, 1904 // including the empty string. 1905 bool String::CaseInsensitiveCStringEquals(const char * lhs, const char * rhs) { 1906 if (lhs == NULL) 1907 return rhs == NULL; 1908 if (rhs == NULL) 1909 return false; 1910 return posix::StrCaseCmp(lhs, rhs) == 0; 1911 } 1912 1913 // Compares two wide C strings, ignoring case. Returns true iff they 1914 // have the same content. 1915 // 1916 // Unlike wcscasecmp(), this function can handle NULL argument(s). 1917 // A NULL C string is considered different to any non-NULL wide C string, 1918 // including the empty string. 1919 // NB: The implementations on different platforms slightly differ. 1920 // On windows, this method uses _wcsicmp which compares according to LC_CTYPE 1921 // environment variable. On GNU platform this method uses wcscasecmp 1922 // which compares according to LC_CTYPE category of the current locale. 1923 // On MacOS X, it uses towlower, which also uses LC_CTYPE category of the 1924 // current locale. 1925 bool String::CaseInsensitiveWideCStringEquals(const wchar_t* lhs, 1926 const wchar_t* rhs) { 1927 if (lhs == NULL) return rhs == NULL; 1928 1929 if (rhs == NULL) return false; 1930 1931 #if GTEST_OS_WINDOWS 1932 return _wcsicmp(lhs, rhs) == 0; 1933 #elif GTEST_OS_LINUX && !GTEST_OS_LINUX_ANDROID 1934 return wcscasecmp(lhs, rhs) == 0; 1935 #else 1936 // Android, Mac OS X and Cygwin don't define wcscasecmp. 1937 // Other unknown OSes may not define it either. 1938 wint_t left, right; 1939 do { 1940 left = towlower(*lhs++); 1941 right = towlower(*rhs++); 1942 } while (left && left == right); 1943 return left == right; 1944 #endif // OS selector 1945 } 1946 1947 // Returns true iff str ends with the given suffix, ignoring case. 1948 // Any string is considered to end with an empty suffix. 1949 bool String::EndsWithCaseInsensitive( 1950 const std::string& str, const std::string& suffix) { 1951 const size_t str_len = str.length(); 1952 const size_t suffix_len = suffix.length(); 1953 return (str_len >= suffix_len) && 1954 CaseInsensitiveCStringEquals(str.c_str() + str_len - suffix_len, 1955 suffix.c_str()); 1956 } 1957 1958 // Formats an int value as "%02d". 1959 std::string String::FormatIntWidth2(int value) { 1960 std::stringstream ss; 1961 ss << std::setfill('0') << std::setw(2) << value; 1962 return ss.str(); 1963 } 1964 1965 // Formats an int value as "%X". 1966 std::string String::FormatHexInt(int value) { 1967 std::stringstream ss; 1968 ss << std::hex << std::uppercase << value; 1969 return ss.str(); 1970 } 1971 1972 // Formats a byte as "%02X". 1973 std::string String::FormatByte(unsigned char value) { 1974 std::stringstream ss; 1975 ss << std::setfill('0') << std::setw(2) << std::hex << std::uppercase 1976 << static_cast<unsigned int>(value); 1977 return ss.str(); 1978 } 1979 1980 // Converts the buffer in a stringstream to an std::string, converting NUL 1981 // bytes to "\\0" along the way. 1982 std::string StringStreamToString(::std::stringstream* ss) { 1983 const ::std::string& str = ss->str(); 1984 const char* const start = str.c_str(); 1985 const char* const end = start + str.length(); 1986 1987 std::string result; 1988 result.reserve(2 * (end - start)); 1989 for (const char* ch = start; ch != end; ++ch) { 1990 if (*ch == '\0') { 1991 result += "\\0"; // Replaces NUL with "\\0"; 1992 } else { 1993 result += *ch; 1994 } 1995 } 1996 1997 return result; 1998 } 1999 2000 // Appends the user-supplied message to the Google-Test-generated message. 2001 std::string AppendUserMessage(const std::string& gtest_msg, 2002 const Message& user_msg) { 2003 // Appends the user message if it's non-empty. 2004 const std::string user_msg_string = user_msg.GetString(); 2005 if (user_msg_string.empty()) { 2006 return gtest_msg; 2007 } 2008 2009 return gtest_msg + "\n" + user_msg_string; 2010 } 2011 2012 } // namespace internal 2013 2014 // class TestResult 2015 2016 // Creates an empty TestResult. 2017 TestResult::TestResult() 2018 : death_test_count_(0), 2019 elapsed_time_(0) { 2020 } 2021 2022 // D'tor. 2023 TestResult::~TestResult() { 2024 } 2025 2026 // Returns the i-th test part result among all the results. i can 2027 // range from 0 to total_part_count() - 1. If i is not in that range, 2028 // aborts the program. 2029 const TestPartResult& TestResult::GetTestPartResult(int i) const { 2030 if (i < 0 || i >= total_part_count()) 2031 internal::posix::Abort(); 2032 return test_part_results_.at(i); 2033 } 2034 2035 // Returns the i-th test property. i can range from 0 to 2036 // test_property_count() - 1. If i is not in that range, aborts the 2037 // program. 2038 const TestProperty& TestResult::GetTestProperty(int i) const { 2039 if (i < 0 || i >= test_property_count()) 2040 internal::posix::Abort(); 2041 return test_properties_.at(i); 2042 } 2043 2044 // Clears the test part results. 2045 void TestResult::ClearTestPartResults() { 2046 test_part_results_.clear(); 2047 } 2048 2049 // Adds a test part result to the list. 2050 void TestResult::AddTestPartResult(const TestPartResult& test_part_result) { 2051 test_part_results_.push_back(test_part_result); 2052 } 2053 2054 // Adds a test property to the list. If a property with the same key as the 2055 // supplied property is already represented, the value of this test_property 2056 // replaces the old value for that key. 2057 void TestResult::RecordProperty(const std::string& xml_element, 2058 const TestProperty& test_property) { 2059 if (!ValidateTestProperty(xml_element, test_property)) { 2060 return; 2061 } 2062 internal::MutexLock lock(&test_properites_mutex_); 2063 const std::vector<TestProperty>::iterator property_with_matching_key = 2064 std::find_if(test_properties_.begin(), test_properties_.end(), 2065 internal::TestPropertyKeyIs(test_property.key())); 2066 if (property_with_matching_key == test_properties_.end()) { 2067 test_properties_.push_back(test_property); 2068 return; 2069 } 2070 property_with_matching_key->SetValue(test_property.value()); 2071 } 2072 2073 // The list of reserved attributes used in the <testsuites> element of XML 2074 // output. 2075 static const char* const kReservedTestSuitesAttributes[] = { 2076 "disabled", 2077 "errors", 2078 "failures", 2079 "name", 2080 "random_seed", 2081 "tests", 2082 "time", 2083 "timestamp" 2084 }; 2085 2086 // The list of reserved attributes used in the <testsuite> element of XML 2087 // output. 2088 static const char* const kReservedTestSuiteAttributes[] = { 2089 "disabled", 2090 "errors", 2091 "failures", 2092 "name", 2093 "tests", 2094 "time" 2095 }; 2096 2097 // The list of reserved attributes used in the <testcase> element of XML output. 2098 static const char* const kReservedTestCaseAttributes[] = { 2099 "classname", 2100 "name", 2101 "status", 2102 "time", 2103 "type_param", 2104 "value_param" 2105 }; 2106 2107 template <int kSize> 2108 std::vector<std::string> ArrayAsVector(const char* const (&array)[kSize]) { 2109 return std::vector<std::string>(array, array + kSize); 2110 } 2111 2112 static std::vector<std::string> GetReservedAttributesForElement( 2113 const std::string& xml_element) { 2114 if (xml_element == "testsuites") { 2115 return ArrayAsVector(kReservedTestSuitesAttributes); 2116 } else if (xml_element == "testsuite") { 2117 return ArrayAsVector(kReservedTestSuiteAttributes); 2118 } else if (xml_element == "testcase") { 2119 return ArrayAsVector(kReservedTestCaseAttributes); 2120 } else { 2121 GTEST_CHECK_(false) << "Unrecognized xml_element provided: " << xml_element; 2122 } 2123 // This code is unreachable but some compilers may not realizes that. 2124 return std::vector<std::string>(); 2125 } 2126 2127 static std::string FormatWordList(const std::vector<std::string>& words) { 2128 Message word_list; 2129 for (size_t i = 0; i < words.size(); ++i) { 2130 if (i > 0 && words.size() > 2) { 2131 word_list << ", "; 2132 } 2133 if (i == words.size() - 1) { 2134 word_list << "and "; 2135 } 2136 word_list << "'" << words[i] << "'"; 2137 } 2138 return word_list.GetString(); 2139 } 2140 2141 bool ValidateTestPropertyName(const std::string& property_name, 2142 const std::vector<std::string>& reserved_names) { 2143 if (std::find(reserved_names.begin(), reserved_names.end(), property_name) != 2144 reserved_names.end()) { 2145 ADD_FAILURE() << "Reserved key used in RecordProperty(): " << property_name 2146 << " (" << FormatWordList(reserved_names) 2147 << " are reserved by " << GTEST_NAME_ << ")"; 2148 return false; 2149 } 2150 return true; 2151 } 2152 2153 // Adds a failure if the key is a reserved attribute of the element named 2154 // xml_element. Returns true if the property is valid. 2155 bool TestResult::ValidateTestProperty(const std::string& xml_element, 2156 const TestProperty& test_property) { 2157 return ValidateTestPropertyName(test_property.key(), 2158 GetReservedAttributesForElement(xml_element)); 2159 } 2160 2161 // Clears the object. 2162 void TestResult::Clear() { 2163 test_part_results_.clear(); 2164 test_properties_.clear(); 2165 death_test_count_ = 0; 2166 elapsed_time_ = 0; 2167 } 2168 2169 // Returns true iff the test failed. 2170 bool TestResult::Failed() const { 2171 for (int i = 0; i < total_part_count(); ++i) { 2172 if (GetTestPartResult(i).failed()) 2173 return true; 2174 } 2175 return false; 2176 } 2177 2178 // Returns true iff the test part fatally failed. 2179 static bool TestPartFatallyFailed(const TestPartResult& result) { 2180 return result.fatally_failed(); 2181 } 2182 2183 // Returns true iff the test fatally failed. 2184 bool TestResult::HasFatalFailure() const { 2185 return CountIf(test_part_results_, TestPartFatallyFailed) > 0; 2186 } 2187 2188 // Returns true iff the test part non-fatally failed. 2189 static bool TestPartNonfatallyFailed(const TestPartResult& result) { 2190 return result.nonfatally_failed(); 2191 } 2192 2193 // Returns true iff the test has a non-fatal failure. 2194 bool TestResult::HasNonfatalFailure() const { 2195 return CountIf(test_part_results_, TestPartNonfatallyFailed) > 0; 2196 } 2197 2198 // Gets the number of all test parts. This is the sum of the number 2199 // of successful test parts and the number of failed test parts. 2200 int TestResult::total_part_count() const { 2201 return static_cast<int>(test_part_results_.size()); 2202 } 2203 2204 // Returns the number of the test properties. 2205 int TestResult::test_property_count() const { 2206 return static_cast<int>(test_properties_.size()); 2207 } 2208 2209 // class Test 2210 2211 // Creates a Test object. 2212 2213 // The c'tor saves the states of all flags. 2214 Test::Test() 2215 : gtest_flag_saver_(new GTEST_FLAG_SAVER_) { 2216 } 2217 2218 // The d'tor restores the states of all flags. The actual work is 2219 // done by the d'tor of the gtest_flag_saver_ field, and thus not 2220 // visible here. 2221 Test::~Test() { 2222 } 2223 2224 // Sets up the test fixture. 2225 // 2226 // A sub-class may override this. 2227 void Test::SetUp() { 2228 } 2229 2230 // Tears down the test fixture. 2231 // 2232 // A sub-class may override this. 2233 void Test::TearDown() { 2234 } 2235 2236 // Allows user supplied key value pairs to be recorded for later output. 2237 void Test::RecordProperty(const std::string& key, const std::string& value) { 2238 UnitTest::GetInstance()->RecordProperty(key, value); 2239 } 2240 2241 // Allows user supplied key value pairs to be recorded for later output. 2242 void Test::RecordProperty(const std::string& key, int value) { 2243 Message value_message; 2244 value_message << value; 2245 RecordProperty(key, value_message.GetString().c_str()); 2246 } 2247 2248 namespace internal { 2249 2250 void ReportFailureInUnknownLocation(TestPartResult::Type result_type, 2251 const std::string& message) { 2252 // This function is a friend of UnitTest and as such has access to 2253 // AddTestPartResult. 2254 UnitTest::GetInstance()->AddTestPartResult( 2255 result_type, 2256 NULL, // No info about the source file where the exception occurred. 2257 -1, // We have no info on which line caused the exception. 2258 message, 2259 ""); // No stack trace, either. 2260 } 2261 2262 } // namespace internal 2263 2264 // Google Test requires all tests in the same test case to use the same test 2265 // fixture class. This function checks if the current test has the 2266 // same fixture class as the first test in the current test case. If 2267 // yes, it returns true; otherwise it generates a Google Test failure and 2268 // returns false. 2269 bool Test::HasSameFixtureClass() { 2270 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 2271 const TestCase* const test_case = impl->current_test_case(); 2272 2273 // Info about the first test in the current test case. 2274 const TestInfo* const first_test_info = test_case->test_info_list()[0]; 2275 const internal::TypeId first_fixture_id = first_test_info->fixture_class_id_; 2276 const char* const first_test_name = first_test_info->name(); 2277 2278 // Info about the current test. 2279 const TestInfo* const this_test_info = impl->current_test_info(); 2280 const internal::TypeId this_fixture_id = this_test_info->fixture_class_id_; 2281 const char* const this_test_name = this_test_info->name(); 2282 2283 if (this_fixture_id != first_fixture_id) { 2284 // Is the first test defined using TEST? 2285 const bool first_is_TEST = first_fixture_id == internal::GetTestTypeId(); 2286 // Is this test defined using TEST? 2287 const bool this_is_TEST = this_fixture_id == internal::GetTestTypeId(); 2288 2289 if (first_is_TEST || this_is_TEST) { 2290 // Both TEST and TEST_F appear in same test case, which is incorrect. 2291 // Tell the user how to fix this. 2292 2293 // Gets the name of the TEST and the name of the TEST_F. Note 2294 // that first_is_TEST and this_is_TEST cannot both be true, as 2295 // the fixture IDs are different for the two tests. 2296 const char* const TEST_name = 2297 first_is_TEST ? first_test_name : this_test_name; 2298 const char* const TEST_F_name = 2299 first_is_TEST ? this_test_name : first_test_name; 2300 2301 ADD_FAILURE() 2302 << "All tests in the same test case must use the same test fixture\n" 2303 << "class, so mixing TEST_F and TEST in the same test case is\n" 2304 << "illegal. In test case " << this_test_info->test_case_name() 2305 << ",\n" 2306 << "test " << TEST_F_name << " is defined using TEST_F but\n" 2307 << "test " << TEST_name << " is defined using TEST. You probably\n" 2308 << "want to change the TEST to TEST_F or move it to another test\n" 2309 << "case."; 2310 } else { 2311 // Two fixture classes with the same name appear in two different 2312 // namespaces, which is not allowed. Tell the user how to fix this. 2313 ADD_FAILURE() 2314 << "All tests in the same test case must use the same test fixture\n" 2315 << "class. However, in test case " 2316 << this_test_info->test_case_name() << ",\n" 2317 << "you defined test " << first_test_name 2318 << " and test " << this_test_name << "\n" 2319 << "using two different test fixture classes. This can happen if\n" 2320 << "the two classes are from different namespaces or translation\n" 2321 << "units and have the same name. You should probably rename one\n" 2322 << "of the classes to put the tests into different test cases."; 2323 } 2324 return false; 2325 } 2326 2327 return true; 2328 } 2329 2330 #if GTEST_HAS_SEH 2331 2332 // Adds an "exception thrown" fatal failure to the current test. This 2333 // function returns its result via an output parameter pointer because VC++ 2334 // prohibits creation of objects with destructors on stack in functions 2335 // using __try (see error C2712). 2336 static std::string* FormatSehExceptionMessage(DWORD exception_code, 2337 const char* location) { 2338 Message message; 2339 message << "SEH exception with code 0x" << std::setbase(16) << 2340 exception_code << std::setbase(10) << " thrown in " << location << "."; 2341 2342 return new std::string(message.GetString()); 2343 } 2344 2345 #endif // GTEST_HAS_SEH 2346 2347 namespace internal { 2348 2349 #if GTEST_HAS_EXCEPTIONS 2350 2351 // Adds an "exception thrown" fatal failure to the current test. 2352 static std::string FormatCxxExceptionMessage(const char* description, 2353 const char* location) { 2354 Message message; 2355 if (description != NULL) { 2356 message << "C++ exception with description \"" << description << "\""; 2357 } else { 2358 message << "Unknown C++ exception"; 2359 } 2360 message << " thrown in " << location << "."; 2361 2362 return message.GetString(); 2363 } 2364 2365 static std::string PrintTestPartResultToString( 2366 const TestPartResult& test_part_result); 2367 2368 GoogleTestFailureException::GoogleTestFailureException( 2369 const TestPartResult& failure) 2370 : ::std::runtime_error(PrintTestPartResultToString(failure).c_str()) {} 2371 2372 #endif // GTEST_HAS_EXCEPTIONS 2373 2374 // We put these helper functions in the internal namespace as IBM's xlC 2375 // compiler rejects the code if they were declared static. 2376 2377 // Runs the given method and handles SEH exceptions it throws, when 2378 // SEH is supported; returns the 0-value for type Result in case of an 2379 // SEH exception. (Microsoft compilers cannot handle SEH and C++ 2380 // exceptions in the same function. Therefore, we provide a separate 2381 // wrapper function for handling SEH exceptions.) 2382 template <class T, typename Result> 2383 Result HandleSehExceptionsInMethodIfSupported( 2384 T* object, Result (T::*method)(), const char* location) { 2385 #if GTEST_HAS_SEH 2386 __try { 2387 return (object->*method)(); 2388 } __except (internal::UnitTestOptions::GTestShouldProcessSEH( // NOLINT 2389 GetExceptionCode())) { 2390 // We create the exception message on the heap because VC++ prohibits 2391 // creation of objects with destructors on stack in functions using __try 2392 // (see error C2712). 2393 std::string* exception_message = FormatSehExceptionMessage( 2394 GetExceptionCode(), location); 2395 internal::ReportFailureInUnknownLocation(TestPartResult::kFatalFailure, 2396 *exception_message); 2397 delete exception_message; 2398 return static_cast<Result>(0); 2399 } 2400 #else 2401 (void)location; 2402 return (object->*method)(); 2403 #endif // GTEST_HAS_SEH 2404 } 2405 2406 // Runs the given method and catches and reports C++ and/or SEH-style 2407 // exceptions, if they are supported; returns the 0-value for type 2408 // Result in case of an SEH exception. 2409 template <class T, typename Result> 2410 Result HandleExceptionsInMethodIfSupported( 2411 T* object, Result (T::*method)(), const char* location) { 2412 // NOTE: The user code can affect the way in which Google Test handles 2413 // exceptions by setting GTEST_FLAG(catch_exceptions), but only before 2414 // RUN_ALL_TESTS() starts. It is technically possible to check the flag 2415 // after the exception is caught and either report or re-throw the 2416 // exception based on the flag's value: 2417 // 2418 // try { 2419 // // Perform the test method. 2420 // } catch (...) { 2421 // if (GTEST_FLAG(catch_exceptions)) 2422 // // Report the exception as failure. 2423 // else 2424 // throw; // Re-throws the original exception. 2425 // } 2426 // 2427 // However, the purpose of this flag is to allow the program to drop into 2428 // the debugger when the exception is thrown. On most platforms, once the 2429 // control enters the catch block, the exception origin information is 2430 // lost and the debugger will stop the program at the point of the 2431 // re-throw in this function -- instead of at the point of the original 2432 // throw statement in the code under test. For this reason, we perform 2433 // the check early, sacrificing the ability to affect Google Test's 2434 // exception handling in the method where the exception is thrown. 2435 if (internal::GetUnitTestImpl()->catch_exceptions()) { 2436 #if GTEST_HAS_EXCEPTIONS 2437 try { 2438 return HandleSehExceptionsInMethodIfSupported(object, method, location); 2439 } catch (const internal::GoogleTestFailureException&) { // NOLINT 2440 // This exception type can only be thrown by a failed Google 2441 // Test assertion with the intention of letting another testing 2442 // framework catch it. Therefore we just re-throw it. 2443 throw; 2444 } catch (const std::exception& e) { // NOLINT 2445 internal::ReportFailureInUnknownLocation( 2446 TestPartResult::kFatalFailure, 2447 FormatCxxExceptionMessage(e.what(), location)); 2448 } catch (...) { // NOLINT 2449 internal::ReportFailureInUnknownLocation( 2450 TestPartResult::kFatalFailure, 2451 FormatCxxExceptionMessage(NULL, location)); 2452 } 2453 return static_cast<Result>(0); 2454 #else 2455 return HandleSehExceptionsInMethodIfSupported(object, method, location); 2456 #endif // GTEST_HAS_EXCEPTIONS 2457 } else { 2458 return (object->*method)(); 2459 } 2460 } 2461 2462 } // namespace internal 2463 2464 // Runs the test and updates the test result. 2465 void Test::Run() { 2466 if (!HasSameFixtureClass()) return; 2467 2468 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 2469 impl->os_stack_trace_getter()->UponLeavingGTest(); 2470 internal::HandleExceptionsInMethodIfSupported(this, &Test::SetUp, "SetUp()"); 2471 // We will run the test only if SetUp() was successful. 2472 if (!HasFatalFailure()) { 2473 impl->os_stack_trace_getter()->UponLeavingGTest(); 2474 internal::HandleExceptionsInMethodIfSupported( 2475 this, &Test::TestBody, "the test body"); 2476 } 2477 2478 // However, we want to clean up as much as possible. Hence we will 2479 // always call TearDown(), even if SetUp() or the test body has 2480 // failed. 2481 impl->os_stack_trace_getter()->UponLeavingGTest(); 2482 internal::HandleExceptionsInMethodIfSupported( 2483 this, &Test::TearDown, "TearDown()"); 2484 } 2485 2486 // Returns true iff the current test has a fatal failure. 2487 bool Test::HasFatalFailure() { 2488 return internal::GetUnitTestImpl()->current_test_result()->HasFatalFailure(); 2489 } 2490 2491 // Returns true iff the current test has a non-fatal failure. 2492 bool Test::HasNonfatalFailure() { 2493 return internal::GetUnitTestImpl()->current_test_result()-> 2494 HasNonfatalFailure(); 2495 } 2496 2497 // class TestInfo 2498 2499 // Constructs a TestInfo object. It assumes ownership of the test factory 2500 // object. 2501 TestInfo::TestInfo(const std::string& a_test_case_name, 2502 const std::string& a_name, 2503 const char* a_type_param, 2504 const char* a_value_param, 2505 internal::CodeLocation a_code_location, 2506 internal::TypeId fixture_class_id, 2507 internal::TestFactoryBase* factory) 2508 : test_case_name_(a_test_case_name), 2509 name_(a_name), 2510 type_param_(a_type_param ? new std::string(a_type_param) : NULL), 2511 value_param_(a_value_param ? new std::string(a_value_param) : NULL), 2512 location_(a_code_location), 2513 fixture_class_id_(fixture_class_id), 2514 should_run_(false), 2515 is_disabled_(false), 2516 matches_filter_(false), 2517 factory_(factory), 2518 result_() {} 2519 2520 // Destructs a TestInfo object. 2521 TestInfo::~TestInfo() { delete factory_; } 2522 2523 namespace internal { 2524 2525 // Creates a new TestInfo object and registers it with Google Test; 2526 // returns the created object. 2527 // 2528 // Arguments: 2529 // 2530 // test_case_name: name of the test case 2531 // name: name of the test 2532 // type_param: the name of the test's type parameter, or NULL if 2533 // this is not a typed or a type-parameterized test. 2534 // value_param: text representation of the test's value parameter, 2535 // or NULL if this is not a value-parameterized test. 2536 // code_location: code location where the test is defined 2537 // fixture_class_id: ID of the test fixture class 2538 // set_up_tc: pointer to the function that sets up the test case 2539 // tear_down_tc: pointer to the function that tears down the test case 2540 // factory: pointer to the factory that creates a test object. 2541 // The newly created TestInfo instance will assume 2542 // ownership of the factory object. 2543 TestInfo* MakeAndRegisterTestInfo( 2544 const char* test_case_name, 2545 const char* name, 2546 const char* type_param, 2547 const char* value_param, 2548 CodeLocation code_location, 2549 TypeId fixture_class_id, 2550 SetUpTestCaseFunc set_up_tc, 2551 TearDownTestCaseFunc tear_down_tc, 2552 TestFactoryBase* factory) { 2553 TestInfo* const test_info = 2554 new TestInfo(test_case_name, name, type_param, value_param, 2555 code_location, fixture_class_id, factory); 2556 GetUnitTestImpl()->AddTestInfo(set_up_tc, tear_down_tc, test_info); 2557 return test_info; 2558 } 2559 2560 #if GTEST_HAS_PARAM_TEST 2561 void ReportInvalidTestCaseType(const char* test_case_name, 2562 CodeLocation code_location) { 2563 Message errors; 2564 errors 2565 << "Attempted redefinition of test case " << test_case_name << ".\n" 2566 << "All tests in the same test case must use the same test fixture\n" 2567 << "class. However, in test case " << test_case_name << ", you tried\n" 2568 << "to define a test using a fixture class different from the one\n" 2569 << "used earlier. This can happen if the two fixture classes are\n" 2570 << "from different namespaces and have the same name. You should\n" 2571 << "probably rename one of the classes to put the tests into different\n" 2572 << "test cases."; 2573 2574 fprintf(stderr, "%s %s", 2575 FormatFileLocation(code_location.file.c_str(), 2576 code_location.line).c_str(), 2577 errors.GetString().c_str()); 2578 } 2579 #endif // GTEST_HAS_PARAM_TEST 2580 2581 } // namespace internal 2582 2583 namespace { 2584 2585 // A predicate that checks the test name of a TestInfo against a known 2586 // value. 2587 // 2588 // This is used for implementation of the TestCase class only. We put 2589 // it in the anonymous namespace to prevent polluting the outer 2590 // namespace. 2591 // 2592 // TestNameIs is copyable. 2593 class TestNameIs { 2594 public: 2595 // Constructor. 2596 // 2597 // TestNameIs has NO default constructor. 2598 explicit TestNameIs(const char* name) 2599 : name_(name) {} 2600 2601 // Returns true iff the test name of test_info matches name_. 2602 bool operator()(const TestInfo * test_info) const { 2603 return test_info && test_info->name() == name_; 2604 } 2605 2606 private: 2607 std::string name_; 2608 }; 2609 2610 } // namespace 2611 2612 namespace internal { 2613 2614 // This method expands all parameterized tests registered with macros TEST_P 2615 // and INSTANTIATE_TEST_CASE_P into regular tests and registers those. 2616 // This will be done just once during the program runtime. 2617 void UnitTestImpl::RegisterParameterizedTests() { 2618 #if GTEST_HAS_PARAM_TEST 2619 if (!parameterized_tests_registered_) { 2620 parameterized_test_registry_.RegisterTests(); 2621 parameterized_tests_registered_ = true; 2622 } 2623 #endif 2624 } 2625 2626 } // namespace internal 2627 2628 // Creates the test object, runs it, records its result, and then 2629 // deletes it. 2630 void TestInfo::Run() { 2631 if (!should_run_) return; 2632 2633 // Tells UnitTest where to store test result. 2634 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 2635 impl->set_current_test_info(this); 2636 2637 TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater(); 2638 2639 // Notifies the unit test event listeners that a test is about to start. 2640 repeater->OnTestStart(*this); 2641 2642 const TimeInMillis start = internal::GetTimeInMillis(); 2643 2644 impl->os_stack_trace_getter()->UponLeavingGTest(); 2645 2646 // Creates the test object. 2647 Test* const test = internal::HandleExceptionsInMethodIfSupported( 2648 factory_, &internal::TestFactoryBase::CreateTest, 2649 "the test fixture's constructor"); 2650 2651 // Runs the test only if the test object was created and its 2652 // constructor didn't generate a fatal failure. 2653 if ((test != NULL) && !Test::HasFatalFailure()) { 2654 // This doesn't throw as all user code that can throw are wrapped into 2655 // exception handling code. 2656 test->Run(); 2657 } 2658 2659 // Deletes the test object. 2660 impl->os_stack_trace_getter()->UponLeavingGTest(); 2661 internal::HandleExceptionsInMethodIfSupported( 2662 test, &Test::DeleteSelf_, "the test fixture's destructor"); 2663 2664 result_.set_elapsed_time(internal::GetTimeInMillis() - start); 2665 2666 // Notifies the unit test event listener that a test has just finished. 2667 repeater->OnTestEnd(*this); 2668 2669 // Tells UnitTest to stop associating assertion results to this 2670 // test. 2671 impl->set_current_test_info(NULL); 2672 } 2673 2674 // class TestCase 2675 2676 // Gets the number of successful tests in this test case. 2677 int TestCase::successful_test_count() const { 2678 return CountIf(test_info_list_, TestPassed); 2679 } 2680 2681 // Gets the number of failed tests in this test case. 2682 int TestCase::failed_test_count() const { 2683 return CountIf(test_info_list_, TestFailed); 2684 } 2685 2686 // Gets the number of disabled tests that will be reported in the XML report. 2687 int TestCase::reportable_disabled_test_count() const { 2688 return CountIf(test_info_list_, TestReportableDisabled); 2689 } 2690 2691 // Gets the number of disabled tests in this test case. 2692 int TestCase::disabled_test_count() const { 2693 return CountIf(test_info_list_, TestDisabled); 2694 } 2695 2696 // Gets the number of tests to be printed in the XML report. 2697 int TestCase::reportable_test_count() const { 2698 return CountIf(test_info_list_, TestReportable); 2699 } 2700 2701 // Get the number of tests in this test case that should run. 2702 int TestCase::test_to_run_count() const { 2703 return CountIf(test_info_list_, ShouldRunTest); 2704 } 2705 2706 // Gets the number of all tests. 2707 int TestCase::total_test_count() const { 2708 return static_cast<int>(test_info_list_.size()); 2709 } 2710 2711 // Creates a TestCase with the given name. 2712 // 2713 // Arguments: 2714 // 2715 // name: name of the test case 2716 // a_type_param: the name of the test case's type parameter, or NULL if 2717 // this is not a typed or a type-parameterized test case. 2718 // set_up_tc: pointer to the function that sets up the test case 2719 // tear_down_tc: pointer to the function that tears down the test case 2720 TestCase::TestCase(const char* a_name, const char* a_type_param, 2721 Test::SetUpTestCaseFunc set_up_tc, 2722 Test::TearDownTestCaseFunc tear_down_tc) 2723 : name_(a_name), 2724 type_param_(a_type_param ? new std::string(a_type_param) : NULL), 2725 set_up_tc_(set_up_tc), 2726 tear_down_tc_(tear_down_tc), 2727 should_run_(false), 2728 elapsed_time_(0) { 2729 } 2730 2731 // Destructor of TestCase. 2732 TestCase::~TestCase() { 2733 // Deletes every Test in the collection. 2734 ForEach(test_info_list_, internal::Delete<TestInfo>); 2735 } 2736 2737 // Returns the i-th test among all the tests. i can range from 0 to 2738 // total_test_count() - 1. If i is not in that range, returns NULL. 2739 const TestInfo* TestCase::GetTestInfo(int i) const { 2740 const int index = GetElementOr(test_indices_, i, -1); 2741 return index < 0 ? NULL : test_info_list_[index]; 2742 } 2743 2744 // Returns the i-th test among all the tests. i can range from 0 to 2745 // total_test_count() - 1. If i is not in that range, returns NULL. 2746 TestInfo* TestCase::GetMutableTestInfo(int i) { 2747 const int index = GetElementOr(test_indices_, i, -1); 2748 return index < 0 ? NULL : test_info_list_[index]; 2749 } 2750 2751 // Adds a test to this test case. Will delete the test upon 2752 // destruction of the TestCase object. 2753 void TestCase::AddTestInfo(TestInfo * test_info) { 2754 test_info_list_.push_back(test_info); 2755 test_indices_.push_back(static_cast<int>(test_indices_.size())); 2756 } 2757 2758 // Runs every test in this TestCase. 2759 void TestCase::Run() { 2760 if (!should_run_) return; 2761 2762 internal::UnitTestImpl* const impl = internal::GetUnitTestImpl(); 2763 impl->set_current_test_case(this); 2764 2765 TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater(); 2766 2767 repeater->OnTestCaseStart(*this); 2768 impl->os_stack_trace_getter()->UponLeavingGTest(); 2769 internal::HandleExceptionsInMethodIfSupported( 2770 this, &TestCase::RunSetUpTestCase, "SetUpTestCase()"); 2771 2772 const internal::TimeInMillis start = internal::GetTimeInMillis(); 2773 for (int i = 0; i < total_test_count(); i++) { 2774 GetMutableTestInfo(i)->Run(); 2775 } 2776 elapsed_time_ = internal::GetTimeInMillis() - start; 2777 2778 impl->os_stack_trace_getter()->UponLeavingGTest(); 2779 internal::HandleExceptionsInMethodIfSupported( 2780 this, &TestCase::RunTearDownTestCase, "TearDownTestCase()"); 2781 2782 repeater->OnTestCaseEnd(*this); 2783 impl->set_current_test_case(NULL); 2784 } 2785 2786 // Clears the results of all tests in this test case. 2787 void TestCase::ClearResult() { 2788 ad_hoc_test_result_.Clear(); 2789 ForEach(test_info_list_, TestInfo::ClearTestResult); 2790 } 2791 2792 // Shuffles the tests in this test case. 2793 void TestCase::ShuffleTests(internal::Random* random) { 2794 Shuffle(random, &test_indices_); 2795 } 2796 2797 // Restores the test order to before the first shuffle. 2798 void TestCase::UnshuffleTests() { 2799 for (size_t i = 0; i < test_indices_.size(); i++) { 2800 test_indices_[i] = static_cast<int>(i); 2801 } 2802 } 2803 2804 // Formats a countable noun. Depending on its quantity, either the 2805 // singular form or the plural form is used. e.g. 2806 // 2807 // FormatCountableNoun(1, "formula", "formuli") returns "1 formula". 2808 // FormatCountableNoun(5, "book", "books") returns "5 books". 2809 static std::string FormatCountableNoun(int count, 2810 const char * singular_form, 2811 const char * plural_form) { 2812 return internal::StreamableToString(count) + " " + 2813 (count == 1 ? singular_form : plural_form); 2814 } 2815 2816 // Formats the count of tests. 2817 static std::string FormatTestCount(int test_count) { 2818 return FormatCountableNoun(test_count, "test", "tests"); 2819 } 2820 2821 // Formats the count of test cases. 2822 static std::string FormatTestCaseCount(int test_case_count) { 2823 return FormatCountableNoun(test_case_count, "test case", "test cases"); 2824 } 2825 2826 // Converts a TestPartResult::Type enum to human-friendly string 2827 // representation. Both kNonFatalFailure and kFatalFailure are translated 2828 // to "Failure", as the user usually doesn't care about the difference 2829 // between the two when viewing the test result. 2830 static const char * TestPartResultTypeToString(TestPartResult::Type type) { 2831 switch (type) { 2832 case TestPartResult::kSuccess: 2833 return "Success"; 2834 2835 case TestPartResult::kNonFatalFailure: 2836 case TestPartResult::kFatalFailure: 2837 #ifdef _MSC_VER 2838 return "error: "; 2839 #else 2840 return "Failure\n"; 2841 #endif 2842 default: 2843 return "Unknown result type"; 2844 } 2845 } 2846 2847 namespace internal { 2848 2849 // Prints a TestPartResult to an std::string. 2850 static std::string PrintTestPartResultToString( 2851 const TestPartResult& test_part_result) { 2852 return (Message() 2853 << internal::FormatFileLocation(test_part_result.file_name(), 2854 test_part_result.line_number()) 2855 << " " << TestPartResultTypeToString(test_part_result.type()) 2856 << test_part_result.message()).GetString(); 2857 } 2858 2859 // Prints a TestPartResult. 2860 static void PrintTestPartResult(const TestPartResult& test_part_result) { 2861 const std::string& result = 2862 PrintTestPartResultToString(test_part_result); 2863 printf("%s\n", result.c_str()); 2864 fflush(stdout); 2865 // If the test program runs in Visual Studio or a debugger, the 2866 // following statements add the test part result message to the Output 2867 // window such that the user can double-click on it to jump to the 2868 // corresponding source code location; otherwise they do nothing. 2869 #if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE 2870 // We don't call OutputDebugString*() on Windows Mobile, as printing 2871 // to stdout is done by OutputDebugString() there already - we don't 2872 // want the same message printed twice. 2873 ::OutputDebugStringA(result.c_str()); 2874 ::OutputDebugStringA("\n"); 2875 #endif 2876 } 2877 2878 // class PrettyUnitTestResultPrinter 2879 2880 enum GTestColor { 2881 COLOR_DEFAULT, 2882 COLOR_RED, 2883 COLOR_GREEN, 2884 COLOR_YELLOW 2885 }; 2886 2887 #if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE && \ 2888 !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 2889 2890 // Returns the character attribute for the given color. 2891 WORD GetColorAttribute(GTestColor color) { 2892 switch (color) { 2893 case COLOR_RED: return FOREGROUND_RED; 2894 case COLOR_GREEN: return FOREGROUND_GREEN; 2895 case COLOR_YELLOW: return FOREGROUND_RED | FOREGROUND_GREEN; 2896 default: return 0; 2897 } 2898 } 2899 2900 #else 2901 2902 // Returns the ANSI color code for the given color. COLOR_DEFAULT is 2903 // an invalid input. 2904 const char* GetAnsiColorCode(GTestColor color) { 2905 switch (color) { 2906 case COLOR_RED: return "1"; 2907 case COLOR_GREEN: return "2"; 2908 case COLOR_YELLOW: return "3"; 2909 default: return NULL; 2910 }; 2911 } 2912 2913 #endif // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE 2914 2915 // Returns true iff Google Test should use colors in the output. 2916 bool ShouldUseColor(bool stdout_is_tty) { 2917 const char* const gtest_color = GTEST_FLAG(color).c_str(); 2918 2919 if (String::CaseInsensitiveCStringEquals(gtest_color, "auto")) { 2920 #if GTEST_OS_WINDOWS 2921 // On Windows the TERM variable is usually not set, but the 2922 // console there does support colors. 2923 return stdout_is_tty; 2924 #else 2925 // On non-Windows platforms, we rely on the TERM variable. 2926 const char* const term = posix::GetEnv("TERM"); 2927 const bool term_supports_color = 2928 String::CStringEquals(term, "xterm") || 2929 String::CStringEquals(term, "xterm-color") || 2930 String::CStringEquals(term, "xterm-256color") || 2931 String::CStringEquals(term, "screen") || 2932 String::CStringEquals(term, "screen-256color") || 2933 String::CStringEquals(term, "tmux") || 2934 String::CStringEquals(term, "tmux-256color") || 2935 String::CStringEquals(term, "rxvt-unicode") || 2936 String::CStringEquals(term, "rxvt-unicode-256color") || 2937 String::CStringEquals(term, "linux") || 2938 String::CStringEquals(term, "cygwin"); 2939 return stdout_is_tty && term_supports_color; 2940 #endif // GTEST_OS_WINDOWS 2941 } 2942 2943 return String::CaseInsensitiveCStringEquals(gtest_color, "yes") || 2944 String::CaseInsensitiveCStringEquals(gtest_color, "true") || 2945 String::CaseInsensitiveCStringEquals(gtest_color, "t") || 2946 String::CStringEquals(gtest_color, "1"); 2947 // We take "yes", "true", "t", and "1" as meaning "yes". If the 2948 // value is neither one of these nor "auto", we treat it as "no" to 2949 // be conservative. 2950 } 2951 2952 // Helpers for printing colored strings to stdout. Note that on Windows, we 2953 // cannot simply emit special characters and have the terminal change colors. 2954 // This routine must actually emit the characters rather than return a string 2955 // that would be colored when printed, as can be done on Linux. 2956 void ColoredPrintf(GTestColor color, const char* fmt, ...) { 2957 va_list args; 2958 va_start(args, fmt); 2959 2960 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || GTEST_OS_ZOS || \ 2961 GTEST_OS_IOS || GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT 2962 const bool use_color = AlwaysFalse(); 2963 #else 2964 static const bool in_color_mode = 2965 ShouldUseColor(posix::IsATTY(posix::FileNo(stdout)) != 0); 2966 const bool use_color = in_color_mode && (color != COLOR_DEFAULT); 2967 #endif // GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || GTEST_OS_ZOS 2968 // The '!= 0' comparison is necessary to satisfy MSVC 7.1. 2969 2970 if (!use_color) { 2971 vprintf(fmt, args); 2972 va_end(args); 2973 return; 2974 } 2975 2976 #if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE && \ 2977 !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 2978 const HANDLE stdout_handle = GetStdHandle(STD_OUTPUT_HANDLE); 2979 2980 // Gets the current text color. 2981 CONSOLE_SCREEN_BUFFER_INFO buffer_info; 2982 GetConsoleScreenBufferInfo(stdout_handle, &buffer_info); 2983 const WORD old_color_attrs = buffer_info.wAttributes; 2984 2985 // We need to flush the stream buffers into the console before each 2986 // SetConsoleTextAttribute call lest it affect the text that is already 2987 // printed but has not yet reached the console. 2988 fflush(stdout); 2989 SetConsoleTextAttribute(stdout_handle, 2990 GetColorAttribute(color) | FOREGROUND_INTENSITY); 2991 vprintf(fmt, args); 2992 2993 fflush(stdout); 2994 // Restores the text color. 2995 SetConsoleTextAttribute(stdout_handle, old_color_attrs); 2996 #else 2997 printf("\033[0;3%sm", GetAnsiColorCode(color)); 2998 vprintf(fmt, args); 2999 printf("\033[m"); // Resets the terminal to default. 3000 #endif // GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_MOBILE 3001 va_end(args); 3002 } 3003 3004 // Text printed in Google Test's text output and --gunit_list_tests 3005 // output to label the type parameter and value parameter for a test. 3006 static const char kTypeParamLabel[] = "TypeParam"; 3007 static const char kValueParamLabel[] = "GetParam()"; 3008 3009 void PrintFullTestCommentIfPresent(const TestInfo& test_info) { 3010 const char* const type_param = test_info.type_param(); 3011 const char* const value_param = test_info.value_param(); 3012 3013 if (type_param != NULL || value_param != NULL) { 3014 printf(", where "); 3015 if (type_param != NULL) { 3016 printf("%s = %s", kTypeParamLabel, type_param); 3017 if (value_param != NULL) 3018 printf(" and "); 3019 } 3020 if (value_param != NULL) { 3021 printf("%s = %s", kValueParamLabel, value_param); 3022 } 3023 } 3024 } 3025 3026 // This class implements the TestEventListener interface. 3027 // 3028 // Class PrettyUnitTestResultPrinter is copyable. 3029 class PrettyUnitTestResultPrinter : public TestEventListener { 3030 public: 3031 PrettyUnitTestResultPrinter() {} 3032 static void PrintTestName(const char * test_case, const char * test) { 3033 printf("%s.%s", test_case, test); 3034 } 3035 3036 // The following methods override what's in the TestEventListener class. 3037 virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {} 3038 virtual void OnTestIterationStart(const UnitTest& unit_test, int iteration); 3039 virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test); 3040 virtual void OnEnvironmentsSetUpEnd(const UnitTest& /*unit_test*/) {} 3041 virtual void OnTestCaseStart(const TestCase& test_case); 3042 virtual void OnTestStart(const TestInfo& test_info); 3043 virtual void OnTestPartResult(const TestPartResult& result); 3044 virtual void OnTestEnd(const TestInfo& test_info); 3045 virtual void OnTestCaseEnd(const TestCase& test_case); 3046 virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test); 3047 virtual void OnEnvironmentsTearDownEnd(const UnitTest& /*unit_test*/) {} 3048 virtual void OnTestIterationEnd(const UnitTest& unit_test, int iteration); 3049 virtual void OnTestProgramEnd(const UnitTest& /*unit_test*/) {} 3050 3051 private: 3052 static void PrintFailedTests(const UnitTest& unit_test); 3053 }; 3054 3055 // Fired before each iteration of tests starts. 3056 void PrettyUnitTestResultPrinter::OnTestIterationStart( 3057 const UnitTest& unit_test, int iteration) { 3058 if (GTEST_FLAG(repeat) != 1) 3059 printf("\nRepeating all tests (iteration %d) . . .\n\n", iteration + 1); 3060 3061 const char* const filter = GTEST_FLAG(filter).c_str(); 3062 3063 // Prints the filter if it's not *. This reminds the user that some 3064 // tests may be skipped. 3065 if (!String::CStringEquals(filter, kUniversalFilter)) { 3066 ColoredPrintf(COLOR_YELLOW, 3067 "Note: %s filter = %s\n", GTEST_NAME_, filter); 3068 } 3069 3070 if (internal::ShouldShard(kTestTotalShards, kTestShardIndex, false)) { 3071 const Int32 shard_index = Int32FromEnvOrDie(kTestShardIndex, -1); 3072 ColoredPrintf(COLOR_YELLOW, 3073 "Note: This is test shard %d of %s.\n", 3074 static_cast<int>(shard_index) + 1, 3075 internal::posix::GetEnv(kTestTotalShards)); 3076 } 3077 3078 if (GTEST_FLAG(shuffle)) { 3079 ColoredPrintf(COLOR_YELLOW, 3080 "Note: Randomizing tests' orders with a seed of %d .\n", 3081 unit_test.random_seed()); 3082 } 3083 3084 ColoredPrintf(COLOR_GREEN, "[==========] "); 3085 printf("Running %s from %s.\n", 3086 FormatTestCount(unit_test.test_to_run_count()).c_str(), 3087 FormatTestCaseCount(unit_test.test_case_to_run_count()).c_str()); 3088 fflush(stdout); 3089 } 3090 3091 void PrettyUnitTestResultPrinter::OnEnvironmentsSetUpStart( 3092 const UnitTest& /*unit_test*/) { 3093 ColoredPrintf(COLOR_GREEN, "[----------] "); 3094 printf("Global test environment set-up.\n"); 3095 fflush(stdout); 3096 } 3097 3098 void PrettyUnitTestResultPrinter::OnTestCaseStart(const TestCase& test_case) { 3099 const std::string counts = 3100 FormatCountableNoun(test_case.test_to_run_count(), "test", "tests"); 3101 ColoredPrintf(COLOR_GREEN, "[----------] "); 3102 printf("%s from %s", counts.c_str(), test_case.name()); 3103 if (test_case.type_param() == NULL) { 3104 printf("\n"); 3105 } else { 3106 printf(", where %s = %s\n", kTypeParamLabel, test_case.type_param()); 3107 } 3108 fflush(stdout); 3109 } 3110 3111 void PrettyUnitTestResultPrinter::OnTestStart(const TestInfo& test_info) { 3112 ColoredPrintf(COLOR_GREEN, "[ RUN ] "); 3113 PrintTestName(test_info.test_case_name(), test_info.name()); 3114 printf("\n"); 3115 fflush(stdout); 3116 } 3117 3118 // Called after an assertion failure. 3119 void PrettyUnitTestResultPrinter::OnTestPartResult( 3120 const TestPartResult& result) { 3121 // If the test part succeeded, we don't need to do anything. 3122 if (result.type() == TestPartResult::kSuccess) 3123 return; 3124 3125 // Print failure message from the assertion (e.g. expected this and got that). 3126 PrintTestPartResult(result); 3127 fflush(stdout); 3128 } 3129 3130 void PrettyUnitTestResultPrinter::OnTestEnd(const TestInfo& test_info) { 3131 if (test_info.result()->Passed()) { 3132 ColoredPrintf(COLOR_GREEN, "[ OK ] "); 3133 } else { 3134 ColoredPrintf(COLOR_RED, "[ FAILED ] "); 3135 } 3136 PrintTestName(test_info.test_case_name(), test_info.name()); 3137 if (test_info.result()->Failed()) 3138 PrintFullTestCommentIfPresent(test_info); 3139 3140 if (GTEST_FLAG(print_time)) { 3141 printf(" (%s ms)\n", internal::StreamableToString( 3142 test_info.result()->elapsed_time()).c_str()); 3143 } else { 3144 printf("\n"); 3145 } 3146 fflush(stdout); 3147 } 3148 3149 void PrettyUnitTestResultPrinter::OnTestCaseEnd(const TestCase& test_case) { 3150 if (!GTEST_FLAG(print_time)) return; 3151 3152 const std::string counts = 3153 FormatCountableNoun(test_case.test_to_run_count(), "test", "tests"); 3154 ColoredPrintf(COLOR_GREEN, "[----------] "); 3155 printf("%s from %s (%s ms total)\n\n", 3156 counts.c_str(), test_case.name(), 3157 internal::StreamableToString(test_case.elapsed_time()).c_str()); 3158 fflush(stdout); 3159 } 3160 3161 void PrettyUnitTestResultPrinter::OnEnvironmentsTearDownStart( 3162 const UnitTest& /*unit_test*/) { 3163 ColoredPrintf(COLOR_GREEN, "[----------] "); 3164 printf("Global test environment tear-down\n"); 3165 fflush(stdout); 3166 } 3167 3168 // Internal helper for printing the list of failed tests. 3169 void PrettyUnitTestResultPrinter::PrintFailedTests(const UnitTest& unit_test) { 3170 const int failed_test_count = unit_test.failed_test_count(); 3171 if (failed_test_count == 0) { 3172 return; 3173 } 3174 3175 for (int i = 0; i < unit_test.total_test_case_count(); ++i) { 3176 const TestCase& test_case = *unit_test.GetTestCase(i); 3177 if (!test_case.should_run() || (test_case.failed_test_count() == 0)) { 3178 continue; 3179 } 3180 for (int j = 0; j < test_case.total_test_count(); ++j) { 3181 const TestInfo& test_info = *test_case.GetTestInfo(j); 3182 if (!test_info.should_run() || test_info.result()->Passed()) { 3183 continue; 3184 } 3185 ColoredPrintf(COLOR_RED, "[ FAILED ] "); 3186 printf("%s.%s", test_case.name(), test_info.name()); 3187 PrintFullTestCommentIfPresent(test_info); 3188 printf("\n"); 3189 } 3190 } 3191 } 3192 3193 void PrettyUnitTestResultPrinter::OnTestIterationEnd(const UnitTest& unit_test, 3194 int /*iteration*/) { 3195 ColoredPrintf(COLOR_GREEN, "[==========] "); 3196 printf("%s from %s ran.", 3197 FormatTestCount(unit_test.test_to_run_count()).c_str(), 3198 FormatTestCaseCount(unit_test.test_case_to_run_count()).c_str()); 3199 if (GTEST_FLAG(print_time)) { 3200 printf(" (%s ms total)", 3201 internal::StreamableToString(unit_test.elapsed_time()).c_str()); 3202 } 3203 printf("\n"); 3204 ColoredPrintf(COLOR_GREEN, "[ PASSED ] "); 3205 printf("%s.\n", FormatTestCount(unit_test.successful_test_count()).c_str()); 3206 3207 int num_failures = unit_test.failed_test_count(); 3208 if (!unit_test.Passed()) { 3209 const int failed_test_count = unit_test.failed_test_count(); 3210 ColoredPrintf(COLOR_RED, "[ FAILED ] "); 3211 printf("%s, listed below:\n", FormatTestCount(failed_test_count).c_str()); 3212 PrintFailedTests(unit_test); 3213 printf("\n%2d FAILED %s\n", num_failures, 3214 num_failures == 1 ? "TEST" : "TESTS"); 3215 } 3216 3217 int num_disabled = unit_test.reportable_disabled_test_count(); 3218 if (num_disabled && !GTEST_FLAG(also_run_disabled_tests)) { 3219 if (!num_failures) { 3220 printf("\n"); // Add a spacer if no FAILURE banner is displayed. 3221 } 3222 ColoredPrintf(COLOR_YELLOW, 3223 " YOU HAVE %d DISABLED %s\n\n", 3224 num_disabled, 3225 num_disabled == 1 ? "TEST" : "TESTS"); 3226 } 3227 // Ensure that Google Test output is printed before, e.g., heapchecker output. 3228 fflush(stdout); 3229 } 3230 3231 // End PrettyUnitTestResultPrinter 3232 3233 // class TestEventRepeater 3234 // 3235 // This class forwards events to other event listeners. 3236 class TestEventRepeater : public TestEventListener { 3237 public: 3238 TestEventRepeater() : forwarding_enabled_(true) {} 3239 virtual ~TestEventRepeater(); 3240 void Append(TestEventListener *listener); 3241 TestEventListener* Release(TestEventListener* listener); 3242 3243 // Controls whether events will be forwarded to listeners_. Set to false 3244 // in death test child processes. 3245 bool forwarding_enabled() const { return forwarding_enabled_; } 3246 void set_forwarding_enabled(bool enable) { forwarding_enabled_ = enable; } 3247 3248 virtual void OnTestProgramStart(const UnitTest& unit_test); 3249 virtual void OnTestIterationStart(const UnitTest& unit_test, int iteration); 3250 virtual void OnEnvironmentsSetUpStart(const UnitTest& unit_test); 3251 virtual void OnEnvironmentsSetUpEnd(const UnitTest& unit_test); 3252 virtual void OnTestCaseStart(const TestCase& test_case); 3253 virtual void OnTestStart(const TestInfo& test_info); 3254 virtual void OnTestPartResult(const TestPartResult& result); 3255 virtual void OnTestEnd(const TestInfo& test_info); 3256 virtual void OnTestCaseEnd(const TestCase& test_case); 3257 virtual void OnEnvironmentsTearDownStart(const UnitTest& unit_test); 3258 virtual void OnEnvironmentsTearDownEnd(const UnitTest& unit_test); 3259 virtual void OnTestIterationEnd(const UnitTest& unit_test, int iteration); 3260 virtual void OnTestProgramEnd(const UnitTest& unit_test); 3261 3262 private: 3263 // Controls whether events will be forwarded to listeners_. Set to false 3264 // in death test child processes. 3265 bool forwarding_enabled_; 3266 // The list of listeners that receive events. 3267 std::vector<TestEventListener*> listeners_; 3268 3269 GTEST_DISALLOW_COPY_AND_ASSIGN_(TestEventRepeater); 3270 }; 3271 3272 TestEventRepeater::~TestEventRepeater() { 3273 ForEach(listeners_, Delete<TestEventListener>); 3274 } 3275 3276 void TestEventRepeater::Append(TestEventListener *listener) { 3277 listeners_.push_back(listener); 3278 } 3279 3280 // TODO(vladl (at) google.com): Factor the search functionality into Vector::Find. 3281 TestEventListener* TestEventRepeater::Release(TestEventListener *listener) { 3282 for (size_t i = 0; i < listeners_.size(); ++i) { 3283 if (listeners_[i] == listener) { 3284 listeners_.erase(listeners_.begin() + i); 3285 return listener; 3286 } 3287 } 3288 3289 return NULL; 3290 } 3291 3292 // Since most methods are very similar, use macros to reduce boilerplate. 3293 // This defines a member that forwards the call to all listeners. 3294 #define GTEST_REPEATER_METHOD_(Name, Type) \ 3295 void TestEventRepeater::Name(const Type& parameter) { \ 3296 if (forwarding_enabled_) { \ 3297 for (size_t i = 0; i < listeners_.size(); i++) { \ 3298 listeners_[i]->Name(parameter); \ 3299 } \ 3300 } \ 3301 } 3302 // This defines a member that forwards the call to all listeners in reverse 3303 // order. 3304 #define GTEST_REVERSE_REPEATER_METHOD_(Name, Type) \ 3305 void TestEventRepeater::Name(const Type& parameter) { \ 3306 if (forwarding_enabled_) { \ 3307 for (int i = static_cast<int>(listeners_.size()) - 1; i >= 0; i--) { \ 3308 listeners_[i]->Name(parameter); \ 3309 } \ 3310 } \ 3311 } 3312 3313 GTEST_REPEATER_METHOD_(OnTestProgramStart, UnitTest) 3314 GTEST_REPEATER_METHOD_(OnEnvironmentsSetUpStart, UnitTest) 3315 GTEST_REPEATER_METHOD_(OnTestCaseStart, TestCase) 3316 GTEST_REPEATER_METHOD_(OnTestStart, TestInfo) 3317 GTEST_REPEATER_METHOD_(OnTestPartResult, TestPartResult) 3318 GTEST_REPEATER_METHOD_(OnEnvironmentsTearDownStart, UnitTest) 3319 GTEST_REVERSE_REPEATER_METHOD_(OnEnvironmentsSetUpEnd, UnitTest) 3320 GTEST_REVERSE_REPEATER_METHOD_(OnEnvironmentsTearDownEnd, UnitTest) 3321 GTEST_REVERSE_REPEATER_METHOD_(OnTestEnd, TestInfo) 3322 GTEST_REVERSE_REPEATER_METHOD_(OnTestCaseEnd, TestCase) 3323 GTEST_REVERSE_REPEATER_METHOD_(OnTestProgramEnd, UnitTest) 3324 3325 #undef GTEST_REPEATER_METHOD_ 3326 #undef GTEST_REVERSE_REPEATER_METHOD_ 3327 3328 void TestEventRepeater::OnTestIterationStart(const UnitTest& unit_test, 3329 int iteration) { 3330 if (forwarding_enabled_) { 3331 for (size_t i = 0; i < listeners_.size(); i++) { 3332 listeners_[i]->OnTestIterationStart(unit_test, iteration); 3333 } 3334 } 3335 } 3336 3337 void TestEventRepeater::OnTestIterationEnd(const UnitTest& unit_test, 3338 int iteration) { 3339 if (forwarding_enabled_) { 3340 for (int i = static_cast<int>(listeners_.size()) - 1; i >= 0; i--) { 3341 listeners_[i]->OnTestIterationEnd(unit_test, iteration); 3342 } 3343 } 3344 } 3345 3346 // End TestEventRepeater 3347 3348 // This class generates an XML output file. 3349 class XmlUnitTestResultPrinter : public EmptyTestEventListener { 3350 public: 3351 explicit XmlUnitTestResultPrinter(const char* output_file); 3352 3353 virtual void OnTestIterationEnd(const UnitTest& unit_test, int iteration); 3354 3355 private: 3356 // Is c a whitespace character that is normalized to a space character 3357 // when it appears in an XML attribute value? 3358 static bool IsNormalizableWhitespace(char c) { 3359 return c == 0x9 || c == 0xA || c == 0xD; 3360 } 3361 3362 // May c appear in a well-formed XML document? 3363 static bool IsValidXmlCharacter(char c) { 3364 return IsNormalizableWhitespace(c) || c >= 0x20; 3365 } 3366 3367 // Returns an XML-escaped copy of the input string str. If 3368 // is_attribute is true, the text is meant to appear as an attribute 3369 // value, and normalizable whitespace is preserved by replacing it 3370 // with character references. 3371 static std::string EscapeXml(const std::string& str, bool is_attribute); 3372 3373 // Returns the given string with all characters invalid in XML removed. 3374 static std::string RemoveInvalidXmlCharacters(const std::string& str); 3375 3376 // Convenience wrapper around EscapeXml when str is an attribute value. 3377 static std::string EscapeXmlAttribute(const std::string& str) { 3378 return EscapeXml(str, true); 3379 } 3380 3381 // Convenience wrapper around EscapeXml when str is not an attribute value. 3382 static std::string EscapeXmlText(const char* str) { 3383 return EscapeXml(str, false); 3384 } 3385 3386 // Verifies that the given attribute belongs to the given element and 3387 // streams the attribute as XML. 3388 static void OutputXmlAttribute(std::ostream* stream, 3389 const std::string& element_name, 3390 const std::string& name, 3391 const std::string& value); 3392 3393 // Streams an XML CDATA section, escaping invalid CDATA sequences as needed. 3394 static void OutputXmlCDataSection(::std::ostream* stream, const char* data); 3395 3396 // Streams an XML representation of a TestInfo object. 3397 static void OutputXmlTestInfo(::std::ostream* stream, 3398 const char* test_case_name, 3399 const TestInfo& test_info); 3400 3401 // Prints an XML representation of a TestCase object 3402 static void PrintXmlTestCase(::std::ostream* stream, 3403 const TestCase& test_case); 3404 3405 // Prints an XML summary of unit_test to output stream out. 3406 static void PrintXmlUnitTest(::std::ostream* stream, 3407 const UnitTest& unit_test); 3408 3409 // Produces a string representing the test properties in a result as space 3410 // delimited XML attributes based on the property key="value" pairs. 3411 // When the std::string is not empty, it includes a space at the beginning, 3412 // to delimit this attribute from prior attributes. 3413 static std::string TestPropertiesAsXmlAttributes(const TestResult& result); 3414 3415 // The output file. 3416 const std::string output_file_; 3417 3418 GTEST_DISALLOW_COPY_AND_ASSIGN_(XmlUnitTestResultPrinter); 3419 }; 3420 3421 // Creates a new XmlUnitTestResultPrinter. 3422 XmlUnitTestResultPrinter::XmlUnitTestResultPrinter(const char* output_file) 3423 : output_file_(output_file) { 3424 if (output_file_.c_str() == NULL || output_file_.empty()) { 3425 fprintf(stderr, "XML output file may not be null\n"); 3426 fflush(stderr); 3427 exit(EXIT_FAILURE); 3428 } 3429 } 3430 3431 // Called after the unit test ends. 3432 void XmlUnitTestResultPrinter::OnTestIterationEnd(const UnitTest& unit_test, 3433 int /*iteration*/) { 3434 FILE* xmlout = NULL; 3435 FilePath output_file(output_file_); 3436 FilePath output_dir(output_file.RemoveFileName()); 3437 3438 if (output_dir.CreateDirectoriesRecursively()) { 3439 xmlout = posix::FOpen(output_file_.c_str(), "w"); 3440 } 3441 if (xmlout == NULL) { 3442 // TODO(wan): report the reason of the failure. 3443 // 3444 // We don't do it for now as: 3445 // 3446 // 1. There is no urgent need for it. 3447 // 2. It's a bit involved to make the errno variable thread-safe on 3448 // all three operating systems (Linux, Windows, and Mac OS). 3449 // 3. To interpret the meaning of errno in a thread-safe way, 3450 // we need the strerror_r() function, which is not available on 3451 // Windows. 3452 fprintf(stderr, 3453 "Unable to open file \"%s\"\n", 3454 output_file_.c_str()); 3455 fflush(stderr); 3456 exit(EXIT_FAILURE); 3457 } 3458 std::stringstream stream; 3459 PrintXmlUnitTest(&stream, unit_test); 3460 fprintf(xmlout, "%s", StringStreamToString(&stream).c_str()); 3461 fclose(xmlout); 3462 } 3463 3464 // Returns an XML-escaped copy of the input string str. If is_attribute 3465 // is true, the text is meant to appear as an attribute value, and 3466 // normalizable whitespace is preserved by replacing it with character 3467 // references. 3468 // 3469 // Invalid XML characters in str, if any, are stripped from the output. 3470 // It is expected that most, if not all, of the text processed by this 3471 // module will consist of ordinary English text. 3472 // If this module is ever modified to produce version 1.1 XML output, 3473 // most invalid characters can be retained using character references. 3474 // TODO(wan): It might be nice to have a minimally invasive, human-readable 3475 // escaping scheme for invalid characters, rather than dropping them. 3476 std::string XmlUnitTestResultPrinter::EscapeXml( 3477 const std::string& str, bool is_attribute) { 3478 Message m; 3479 3480 for (size_t i = 0; i < str.size(); ++i) { 3481 const char ch = str[i]; 3482 switch (ch) { 3483 case '<': 3484 m << "<"; 3485 break; 3486 case '>': 3487 m << ">"; 3488 break; 3489 case '&': 3490 m << "&"; 3491 break; 3492 case '\'': 3493 if (is_attribute) 3494 m << "'"; 3495 else 3496 m << '\''; 3497 break; 3498 case '"': 3499 if (is_attribute) 3500 m << """; 3501 else 3502 m << '"'; 3503 break; 3504 default: 3505 if (IsValidXmlCharacter(ch)) { 3506 if (is_attribute && IsNormalizableWhitespace(ch)) 3507 m << "&#x" << String::FormatByte(static_cast<unsigned char>(ch)) 3508 << ";"; 3509 else 3510 m << ch; 3511 } 3512 break; 3513 } 3514 } 3515 3516 return m.GetString(); 3517 } 3518 3519 // Returns the given string with all characters invalid in XML removed. 3520 // Currently invalid characters are dropped from the string. An 3521 // alternative is to replace them with certain characters such as . or ?. 3522 std::string XmlUnitTestResultPrinter::RemoveInvalidXmlCharacters( 3523 const std::string& str) { 3524 std::string output; 3525 output.reserve(str.size()); 3526 for (std::string::const_iterator it = str.begin(); it != str.end(); ++it) 3527 if (IsValidXmlCharacter(*it)) 3528 output.push_back(*it); 3529 3530 return output; 3531 } 3532 3533 // The following routines generate an XML representation of a UnitTest 3534 // object. 3535 // 3536 // This is how Google Test concepts map to the DTD: 3537 // 3538 // <testsuites name="AllTests"> <-- corresponds to a UnitTest object 3539 // <testsuite name="testcase-name"> <-- corresponds to a TestCase object 3540 // <testcase name="test-name"> <-- corresponds to a TestInfo object 3541 // <failure message="...">...</failure> 3542 // <failure message="...">...</failure> 3543 // <failure message="...">...</failure> 3544 // <-- individual assertion failures 3545 // </testcase> 3546 // </testsuite> 3547 // </testsuites> 3548 3549 // Formats the given time in milliseconds as seconds. 3550 std::string FormatTimeInMillisAsSeconds(TimeInMillis ms) { 3551 ::std::stringstream ss; 3552 ss << (static_cast<double>(ms) * 1e-3); 3553 return ss.str(); 3554 } 3555 3556 static bool PortableLocaltime(time_t seconds, struct tm* out) { 3557 #if defined(_MSC_VER) 3558 return localtime_s(out, &seconds) == 0; 3559 #elif defined(__MINGW32__) || defined(__MINGW64__) 3560 // MINGW <time.h> provides neither localtime_r nor localtime_s, but uses 3561 // Windows' localtime(), which has a thread-local tm buffer. 3562 struct tm* tm_ptr = localtime(&seconds); // NOLINT 3563 if (tm_ptr == NULL) 3564 return false; 3565 *out = *tm_ptr; 3566 return true; 3567 #else 3568 return localtime_r(&seconds, out) != NULL; 3569 #endif 3570 } 3571 3572 // Converts the given epoch time in milliseconds to a date string in the ISO 3573 // 8601 format, without the timezone information. 3574 std::string FormatEpochTimeInMillisAsIso8601(TimeInMillis ms) { 3575 struct tm time_struct; 3576 if (!PortableLocaltime(static_cast<time_t>(ms / 1000), &time_struct)) 3577 return ""; 3578 // YYYY-MM-DDThh:mm:ss 3579 return StreamableToString(time_struct.tm_year + 1900) + "-" + 3580 String::FormatIntWidth2(time_struct.tm_mon + 1) + "-" + 3581 String::FormatIntWidth2(time_struct.tm_mday) + "T" + 3582 String::FormatIntWidth2(time_struct.tm_hour) + ":" + 3583 String::FormatIntWidth2(time_struct.tm_min) + ":" + 3584 String::FormatIntWidth2(time_struct.tm_sec); 3585 } 3586 3587 // Streams an XML CDATA section, escaping invalid CDATA sequences as needed. 3588 void XmlUnitTestResultPrinter::OutputXmlCDataSection(::std::ostream* stream, 3589 const char* data) { 3590 const char* segment = data; 3591 *stream << "<![CDATA["; 3592 for (;;) { 3593 const char* const next_segment = strstr(segment, "]]>"); 3594 if (next_segment != NULL) { 3595 stream->write( 3596 segment, static_cast<std::streamsize>(next_segment - segment)); 3597 *stream << "]]>]]><![CDATA["; 3598 segment = next_segment + strlen("]]>"); 3599 } else { 3600 *stream << segment; 3601 break; 3602 } 3603 } 3604 *stream << "]]>"; 3605 } 3606 3607 void XmlUnitTestResultPrinter::OutputXmlAttribute( 3608 std::ostream* stream, 3609 const std::string& element_name, 3610 const std::string& name, 3611 const std::string& value) { 3612 const std::vector<std::string>& allowed_names = 3613 GetReservedAttributesForElement(element_name); 3614 3615 GTEST_CHECK_(std::find(allowed_names.begin(), allowed_names.end(), name) != 3616 allowed_names.end()) 3617 << "Attribute " << name << " is not allowed for element <" << element_name 3618 << ">."; 3619 3620 *stream << " " << name << "=\"" << EscapeXmlAttribute(value) << "\""; 3621 } 3622 3623 // Prints an XML representation of a TestInfo object. 3624 // TODO(wan): There is also value in printing properties with the plain printer. 3625 void XmlUnitTestResultPrinter::OutputXmlTestInfo(::std::ostream* stream, 3626 const char* test_case_name, 3627 const TestInfo& test_info) { 3628 const TestResult& result = *test_info.result(); 3629 const std::string kTestcase = "testcase"; 3630 3631 *stream << " <testcase"; 3632 OutputXmlAttribute(stream, kTestcase, "name", test_info.name()); 3633 3634 if (test_info.value_param() != NULL) { 3635 OutputXmlAttribute(stream, kTestcase, "value_param", 3636 test_info.value_param()); 3637 } 3638 if (test_info.type_param() != NULL) { 3639 OutputXmlAttribute(stream, kTestcase, "type_param", test_info.type_param()); 3640 } 3641 3642 OutputXmlAttribute(stream, kTestcase, "status", 3643 test_info.should_run() ? "run" : "notrun"); 3644 OutputXmlAttribute(stream, kTestcase, "time", 3645 FormatTimeInMillisAsSeconds(result.elapsed_time())); 3646 OutputXmlAttribute(stream, kTestcase, "classname", test_case_name); 3647 *stream << TestPropertiesAsXmlAttributes(result); 3648 3649 int failures = 0; 3650 for (int i = 0; i < result.total_part_count(); ++i) { 3651 const TestPartResult& part = result.GetTestPartResult(i); 3652 if (part.failed()) { 3653 if (++failures == 1) { 3654 *stream << ">\n"; 3655 } 3656 const string location = internal::FormatCompilerIndependentFileLocation( 3657 part.file_name(), part.line_number()); 3658 const string summary = location + "\n" + part.summary(); 3659 *stream << " <failure message=\"" 3660 << EscapeXmlAttribute(summary.c_str()) 3661 << "\" type=\"\">"; 3662 const string detail = location + "\n" + part.message(); 3663 OutputXmlCDataSection(stream, RemoveInvalidXmlCharacters(detail).c_str()); 3664 *stream << "</failure>\n"; 3665 } 3666 } 3667 3668 if (failures == 0) 3669 *stream << " />\n"; 3670 else 3671 *stream << " </testcase>\n"; 3672 } 3673 3674 // Prints an XML representation of a TestCase object 3675 void XmlUnitTestResultPrinter::PrintXmlTestCase(std::ostream* stream, 3676 const TestCase& test_case) { 3677 const std::string kTestsuite = "testsuite"; 3678 *stream << " <" << kTestsuite; 3679 OutputXmlAttribute(stream, kTestsuite, "name", test_case.name()); 3680 OutputXmlAttribute(stream, kTestsuite, "tests", 3681 StreamableToString(test_case.reportable_test_count())); 3682 OutputXmlAttribute(stream, kTestsuite, "failures", 3683 StreamableToString(test_case.failed_test_count())); 3684 OutputXmlAttribute( 3685 stream, kTestsuite, "disabled", 3686 StreamableToString(test_case.reportable_disabled_test_count())); 3687 OutputXmlAttribute(stream, kTestsuite, "errors", "0"); 3688 OutputXmlAttribute(stream, kTestsuite, "time", 3689 FormatTimeInMillisAsSeconds(test_case.elapsed_time())); 3690 *stream << TestPropertiesAsXmlAttributes(test_case.ad_hoc_test_result()) 3691 << ">\n"; 3692 3693 for (int i = 0; i < test_case.total_test_count(); ++i) { 3694 if (test_case.GetTestInfo(i)->is_reportable()) 3695 OutputXmlTestInfo(stream, test_case.name(), *test_case.GetTestInfo(i)); 3696 } 3697 *stream << " </" << kTestsuite << ">\n"; 3698 } 3699 3700 // Prints an XML summary of unit_test to output stream out. 3701 void XmlUnitTestResultPrinter::PrintXmlUnitTest(std::ostream* stream, 3702 const UnitTest& unit_test) { 3703 const std::string kTestsuites = "testsuites"; 3704 3705 *stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"; 3706 *stream << "<" << kTestsuites; 3707 3708 OutputXmlAttribute(stream, kTestsuites, "tests", 3709 StreamableToString(unit_test.reportable_test_count())); 3710 OutputXmlAttribute(stream, kTestsuites, "failures", 3711 StreamableToString(unit_test.failed_test_count())); 3712 OutputXmlAttribute( 3713 stream, kTestsuites, "disabled", 3714 StreamableToString(unit_test.reportable_disabled_test_count())); 3715 OutputXmlAttribute(stream, kTestsuites, "errors", "0"); 3716 OutputXmlAttribute( 3717 stream, kTestsuites, "timestamp", 3718 FormatEpochTimeInMillisAsIso8601(unit_test.start_timestamp())); 3719 OutputXmlAttribute(stream, kTestsuites, "time", 3720 FormatTimeInMillisAsSeconds(unit_test.elapsed_time())); 3721 3722 if (GTEST_FLAG(shuffle)) { 3723 OutputXmlAttribute(stream, kTestsuites, "random_seed", 3724 StreamableToString(unit_test.random_seed())); 3725 } 3726 3727 *stream << TestPropertiesAsXmlAttributes(unit_test.ad_hoc_test_result()); 3728 3729 OutputXmlAttribute(stream, kTestsuites, "name", "AllTests"); 3730 *stream << ">\n"; 3731 3732 for (int i = 0; i < unit_test.total_test_case_count(); ++i) { 3733 if (unit_test.GetTestCase(i)->reportable_test_count() > 0) 3734 PrintXmlTestCase(stream, *unit_test.GetTestCase(i)); 3735 } 3736 *stream << "</" << kTestsuites << ">\n"; 3737 } 3738 3739 // Produces a string representing the test properties in a result as space 3740 // delimited XML attributes based on the property key="value" pairs. 3741 std::string XmlUnitTestResultPrinter::TestPropertiesAsXmlAttributes( 3742 const TestResult& result) { 3743 Message attributes; 3744 for (int i = 0; i < result.test_property_count(); ++i) { 3745 const TestProperty& property = result.GetTestProperty(i); 3746 attributes << " " << property.key() << "=" 3747 << "\"" << EscapeXmlAttribute(property.value()) << "\""; 3748 } 3749 return attributes.GetString(); 3750 } 3751 3752 // End XmlUnitTestResultPrinter 3753 3754 #if GTEST_CAN_STREAM_RESULTS_ 3755 3756 // Checks if str contains '=', '&', '%' or '\n' characters. If yes, 3757 // replaces them by "%xx" where xx is their hexadecimal value. For 3758 // example, replaces "=" with "%3D". This algorithm is O(strlen(str)) 3759 // in both time and space -- important as the input str may contain an 3760 // arbitrarily long test failure message and stack trace. 3761 string StreamingListener::UrlEncode(const char* str) { 3762 string result; 3763 result.reserve(strlen(str) + 1); 3764 for (char ch = *str; ch != '\0'; ch = *++str) { 3765 switch (ch) { 3766 case '%': 3767 case '=': 3768 case '&': 3769 case '\n': 3770 result.append("%" + String::FormatByte(static_cast<unsigned char>(ch))); 3771 break; 3772 default: 3773 result.push_back(ch); 3774 break; 3775 } 3776 } 3777 return result; 3778 } 3779 3780 void StreamingListener::SocketWriter::MakeConnection() { 3781 GTEST_CHECK_(sockfd_ == -1) 3782 << "MakeConnection() can't be called when there is already a connection."; 3783 3784 addrinfo hints; 3785 memset(&hints, 0, sizeof(hints)); 3786 hints.ai_family = AF_UNSPEC; // To allow both IPv4 and IPv6 addresses. 3787 hints.ai_socktype = SOCK_STREAM; 3788 addrinfo* servinfo = NULL; 3789 3790 // Use the getaddrinfo() to get a linked list of IP addresses for 3791 // the given host name. 3792 const int error_num = getaddrinfo( 3793 host_name_.c_str(), port_num_.c_str(), &hints, &servinfo); 3794 if (error_num != 0) { 3795 GTEST_LOG_(WARNING) << "stream_result_to: getaddrinfo() failed: " 3796 << gai_strerror(error_num); 3797 } 3798 3799 // Loop through all the results and connect to the first we can. 3800 for (addrinfo* cur_addr = servinfo; sockfd_ == -1 && cur_addr != NULL; 3801 cur_addr = cur_addr->ai_next) { 3802 sockfd_ = socket( 3803 cur_addr->ai_family, cur_addr->ai_socktype, cur_addr->ai_protocol); 3804 if (sockfd_ != -1) { 3805 // Connect the client socket to the server socket. 3806 if (connect(sockfd_, cur_addr->ai_addr, cur_addr->ai_addrlen) == -1) { 3807 close(sockfd_); 3808 sockfd_ = -1; 3809 } 3810 } 3811 } 3812 3813 freeaddrinfo(servinfo); // all done with this structure 3814 3815 if (sockfd_ == -1) { 3816 GTEST_LOG_(WARNING) << "stream_result_to: failed to connect to " 3817 << host_name_ << ":" << port_num_; 3818 } 3819 } 3820 3821 // End of class Streaming Listener 3822 #endif // GTEST_CAN_STREAM_RESULTS__ 3823 3824 // Class ScopedTrace 3825 3826 // Pushes the given source file location and message onto a per-thread 3827 // trace stack maintained by Google Test. 3828 ScopedTrace::ScopedTrace(const char* file, int line, const Message& message) 3829 GTEST_LOCK_EXCLUDED_(&UnitTest::mutex_) { 3830 TraceInfo trace; 3831 trace.file = file; 3832 trace.line = line; 3833 trace.message = message.GetString(); 3834 3835 UnitTest::GetInstance()->PushGTestTrace(trace); 3836 } 3837 3838 // Pops the info pushed by the c'tor. 3839 ScopedTrace::~ScopedTrace() 3840 GTEST_LOCK_EXCLUDED_(&UnitTest::mutex_) { 3841 UnitTest::GetInstance()->PopGTestTrace(); 3842 } 3843 3844 3845 // class OsStackTraceGetter 3846 3847 const char* const OsStackTraceGetterInterface::kElidedFramesMarker = 3848 "... " GTEST_NAME_ " internal frames ..."; 3849 3850 string OsStackTraceGetter::CurrentStackTrace(int /*max_depth*/, 3851 int /*skip_count*/) { 3852 return ""; 3853 } 3854 3855 void OsStackTraceGetter::UponLeavingGTest() {} 3856 3857 // A helper class that creates the premature-exit file in its 3858 // constructor and deletes the file in its destructor. 3859 class ScopedPrematureExitFile { 3860 public: 3861 explicit ScopedPrematureExitFile(const char* premature_exit_filepath) 3862 : premature_exit_filepath_(premature_exit_filepath) { 3863 // If a path to the premature-exit file is specified... 3864 if (premature_exit_filepath != NULL && *premature_exit_filepath != '\0') { 3865 // create the file with a single "0" character in it. I/O 3866 // errors are ignored as there's nothing better we can do and we 3867 // don't want to fail the test because of this. 3868 FILE* pfile = posix::FOpen(premature_exit_filepath, "w"); 3869 fwrite("0", 1, 1, pfile); 3870 fclose(pfile); 3871 } 3872 } 3873 3874 ~ScopedPrematureExitFile() { 3875 if (premature_exit_filepath_ != NULL && *premature_exit_filepath_ != '\0') { 3876 remove(premature_exit_filepath_); 3877 } 3878 } 3879 3880 private: 3881 const char* const premature_exit_filepath_; 3882 3883 GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedPrematureExitFile); 3884 }; 3885 3886 } // namespace internal 3887 3888 // class TestEventListeners 3889 3890 TestEventListeners::TestEventListeners() 3891 : repeater_(new internal::TestEventRepeater()), 3892 default_result_printer_(NULL), 3893 default_xml_generator_(NULL) { 3894 } 3895 3896 TestEventListeners::~TestEventListeners() { delete repeater_; } 3897 3898 // Returns the standard listener responsible for the default console 3899 // output. Can be removed from the listeners list to shut down default 3900 // console output. Note that removing this object from the listener list 3901 // with Release transfers its ownership to the user. 3902 void TestEventListeners::Append(TestEventListener* listener) { 3903 repeater_->Append(listener); 3904 } 3905 3906 // Removes the given event listener from the list and returns it. It then 3907 // becomes the caller's responsibility to delete the listener. Returns 3908 // NULL if the listener is not found in the list. 3909 TestEventListener* TestEventListeners::Release(TestEventListener* listener) { 3910 if (listener == default_result_printer_) 3911 default_result_printer_ = NULL; 3912 else if (listener == default_xml_generator_) 3913 default_xml_generator_ = NULL; 3914 return repeater_->Release(listener); 3915 } 3916 3917 // Returns repeater that broadcasts the TestEventListener events to all 3918 // subscribers. 3919 TestEventListener* TestEventListeners::repeater() { return repeater_; } 3920 3921 // Sets the default_result_printer attribute to the provided listener. 3922 // The listener is also added to the listener list and previous 3923 // default_result_printer is removed from it and deleted. The listener can 3924 // also be NULL in which case it will not be added to the list. Does 3925 // nothing if the previous and the current listener objects are the same. 3926 void TestEventListeners::SetDefaultResultPrinter(TestEventListener* listener) { 3927 if (default_result_printer_ != listener) { 3928 // It is an error to pass this method a listener that is already in the 3929 // list. 3930 delete Release(default_result_printer_); 3931 default_result_printer_ = listener; 3932 if (listener != NULL) 3933 Append(listener); 3934 } 3935 } 3936 3937 // Sets the default_xml_generator attribute to the provided listener. The 3938 // listener is also added to the listener list and previous 3939 // default_xml_generator is removed from it and deleted. The listener can 3940 // also be NULL in which case it will not be added to the list. Does 3941 // nothing if the previous and the current listener objects are the same. 3942 void TestEventListeners::SetDefaultXmlGenerator(TestEventListener* listener) { 3943 if (default_xml_generator_ != listener) { 3944 // It is an error to pass this method a listener that is already in the 3945 // list. 3946 delete Release(default_xml_generator_); 3947 default_xml_generator_ = listener; 3948 if (listener != NULL) 3949 Append(listener); 3950 } 3951 } 3952 3953 // Controls whether events will be forwarded by the repeater to the 3954 // listeners in the list. 3955 bool TestEventListeners::EventForwardingEnabled() const { 3956 return repeater_->forwarding_enabled(); 3957 } 3958 3959 void TestEventListeners::SuppressEventForwarding() { 3960 repeater_->set_forwarding_enabled(false); 3961 } 3962 3963 // class UnitTest 3964 3965 // Gets the singleton UnitTest object. The first time this method is 3966 // called, a UnitTest object is constructed and returned. Consecutive 3967 // calls will return the same object. 3968 // 3969 // We don't protect this under mutex_ as a user is not supposed to 3970 // call this before main() starts, from which point on the return 3971 // value will never change. 3972 UnitTest* UnitTest::GetInstance() { 3973 // When compiled with MSVC 7.1 in optimized mode, destroying the 3974 // UnitTest object upon exiting the program messes up the exit code, 3975 // causing successful tests to appear failed. We have to use a 3976 // different implementation in this case to bypass the compiler bug. 3977 // This implementation makes the compiler happy, at the cost of 3978 // leaking the UnitTest object. 3979 3980 // CodeGear C++Builder insists on a public destructor for the 3981 // default implementation. Use this implementation to keep good OO 3982 // design with private destructor. 3983 3984 #if (_MSC_VER == 1310 && !defined(_DEBUG)) || defined(__BORLANDC__) 3985 static UnitTest* const instance = new UnitTest; 3986 return instance; 3987 #else 3988 static UnitTest instance; 3989 return &instance; 3990 #endif // (_MSC_VER == 1310 && !defined(_DEBUG)) || defined(__BORLANDC__) 3991 } 3992 3993 // Gets the number of successful test cases. 3994 int UnitTest::successful_test_case_count() const { 3995 return impl()->successful_test_case_count(); 3996 } 3997 3998 // Gets the number of failed test cases. 3999 int UnitTest::failed_test_case_count() const { 4000 return impl()->failed_test_case_count(); 4001 } 4002 4003 // Gets the number of all test cases. 4004 int UnitTest::total_test_case_count() const { 4005 return impl()->total_test_case_count(); 4006 } 4007 4008 // Gets the number of all test cases that contain at least one test 4009 // that should run. 4010 int UnitTest::test_case_to_run_count() const { 4011 return impl()->test_case_to_run_count(); 4012 } 4013 4014 // Gets the number of successful tests. 4015 int UnitTest::successful_test_count() const { 4016 return impl()->successful_test_count(); 4017 } 4018 4019 // Gets the number of failed tests. 4020 int UnitTest::failed_test_count() const { return impl()->failed_test_count(); } 4021 4022 // Gets the number of disabled tests that will be reported in the XML report. 4023 int UnitTest::reportable_disabled_test_count() const { 4024 return impl()->reportable_disabled_test_count(); 4025 } 4026 4027 // Gets the number of disabled tests. 4028 int UnitTest::disabled_test_count() const { 4029 return impl()->disabled_test_count(); 4030 } 4031 4032 // Gets the number of tests to be printed in the XML report. 4033 int UnitTest::reportable_test_count() const { 4034 return impl()->reportable_test_count(); 4035 } 4036 4037 // Gets the number of all tests. 4038 int UnitTest::total_test_count() const { return impl()->total_test_count(); } 4039 4040 // Gets the number of tests that should run. 4041 int UnitTest::test_to_run_count() const { return impl()->test_to_run_count(); } 4042 4043 // Gets the time of the test program start, in ms from the start of the 4044 // UNIX epoch. 4045 internal::TimeInMillis UnitTest::start_timestamp() const { 4046 return impl()->start_timestamp(); 4047 } 4048 4049 // Gets the elapsed time, in milliseconds. 4050 internal::TimeInMillis UnitTest::elapsed_time() const { 4051 return impl()->elapsed_time(); 4052 } 4053 4054 // Returns true iff the unit test passed (i.e. all test cases passed). 4055 bool UnitTest::Passed() const { return impl()->Passed(); } 4056 4057 // Returns true iff the unit test failed (i.e. some test case failed 4058 // or something outside of all tests failed). 4059 bool UnitTest::Failed() const { return impl()->Failed(); } 4060 4061 // Gets the i-th test case among all the test cases. i can range from 0 to 4062 // total_test_case_count() - 1. If i is not in that range, returns NULL. 4063 const TestCase* UnitTest::GetTestCase(int i) const { 4064 return impl()->GetTestCase(i); 4065 } 4066 4067 // Returns the TestResult containing information on test failures and 4068 // properties logged outside of individual test cases. 4069 const TestResult& UnitTest::ad_hoc_test_result() const { 4070 return *impl()->ad_hoc_test_result(); 4071 } 4072 4073 // Gets the i-th test case among all the test cases. i can range from 0 to 4074 // total_test_case_count() - 1. If i is not in that range, returns NULL. 4075 TestCase* UnitTest::GetMutableTestCase(int i) { 4076 return impl()->GetMutableTestCase(i); 4077 } 4078 4079 // Returns the list of event listeners that can be used to track events 4080 // inside Google Test. 4081 TestEventListeners& UnitTest::listeners() { 4082 return *impl()->listeners(); 4083 } 4084 4085 // Registers and returns a global test environment. When a test 4086 // program is run, all global test environments will be set-up in the 4087 // order they were registered. After all tests in the program have 4088 // finished, all global test environments will be torn-down in the 4089 // *reverse* order they were registered. 4090 // 4091 // The UnitTest object takes ownership of the given environment. 4092 // 4093 // We don't protect this under mutex_, as we only support calling it 4094 // from the main thread. 4095 Environment* UnitTest::AddEnvironment(Environment* env) { 4096 if (env == NULL) { 4097 return NULL; 4098 } 4099 4100 impl_->environments().push_back(env); 4101 return env; 4102 } 4103 4104 // Adds a TestPartResult to the current TestResult object. All Google Test 4105 // assertion macros (e.g. ASSERT_TRUE, EXPECT_EQ, etc) eventually call 4106 // this to report their results. The user code should use the 4107 // assertion macros instead of calling this directly. 4108 void UnitTest::AddTestPartResult( 4109 TestPartResult::Type result_type, 4110 const char* file_name, 4111 int line_number, 4112 const std::string& message, 4113 const std::string& os_stack_trace) GTEST_LOCK_EXCLUDED_(mutex_) { 4114 Message msg; 4115 msg << message; 4116 4117 internal::MutexLock lock(&mutex_); 4118 if (impl_->gtest_trace_stack().size() > 0) { 4119 msg << "\n" << GTEST_NAME_ << " trace:"; 4120 4121 for (int i = static_cast<int>(impl_->gtest_trace_stack().size()); 4122 i > 0; --i) { 4123 const internal::TraceInfo& trace = impl_->gtest_trace_stack()[i - 1]; 4124 msg << "\n" << internal::FormatFileLocation(trace.file, trace.line) 4125 << " " << trace.message; 4126 } 4127 } 4128 4129 if (os_stack_trace.c_str() != NULL && !os_stack_trace.empty()) { 4130 msg << internal::kStackTraceMarker << os_stack_trace; 4131 } 4132 4133 const TestPartResult result = 4134 TestPartResult(result_type, file_name, line_number, 4135 msg.GetString().c_str()); 4136 impl_->GetTestPartResultReporterForCurrentThread()-> 4137 ReportTestPartResult(result); 4138 4139 if (result_type != TestPartResult::kSuccess) { 4140 // gtest_break_on_failure takes precedence over 4141 // gtest_throw_on_failure. This allows a user to set the latter 4142 // in the code (perhaps in order to use Google Test assertions 4143 // with another testing framework) and specify the former on the 4144 // command line for debugging. 4145 if (GTEST_FLAG(break_on_failure)) { 4146 #if GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 4147 // Using DebugBreak on Windows allows gtest to still break into a debugger 4148 // when a failure happens and both the --gtest_break_on_failure and 4149 // the --gtest_catch_exceptions flags are specified. 4150 DebugBreak(); 4151 #else 4152 // Dereference NULL through a volatile pointer to prevent the compiler 4153 // from removing. We use this rather than abort() or __builtin_trap() for 4154 // portability: Symbian doesn't implement abort() well, and some debuggers 4155 // don't correctly trap abort(). 4156 *static_cast<volatile int*>(NULL) = 1; 4157 #endif // GTEST_OS_WINDOWS 4158 } else if (GTEST_FLAG(throw_on_failure)) { 4159 #if GTEST_HAS_EXCEPTIONS 4160 throw internal::GoogleTestFailureException(result); 4161 #else 4162 // We cannot call abort() as it generates a pop-up in debug mode 4163 // that cannot be suppressed in VC 7.1 or below. 4164 exit(1); 4165 #endif 4166 } 4167 } 4168 } 4169 4170 // Adds a TestProperty to the current TestResult object when invoked from 4171 // inside a test, to current TestCase's ad_hoc_test_result_ when invoked 4172 // from SetUpTestCase or TearDownTestCase, or to the global property set 4173 // when invoked elsewhere. If the result already contains a property with 4174 // the same key, the value will be updated. 4175 void UnitTest::RecordProperty(const std::string& key, 4176 const std::string& value) { 4177 impl_->RecordProperty(TestProperty(key, value)); 4178 } 4179 4180 // Runs all tests in this UnitTest object and prints the result. 4181 // Returns 0 if successful, or 1 otherwise. 4182 // 4183 // We don't protect this under mutex_, as we only support calling it 4184 // from the main thread. 4185 int UnitTest::Run() { 4186 const bool in_death_test_child_process = 4187 internal::GTEST_FLAG(internal_run_death_test).length() > 0; 4188 4189 // Google Test implements this protocol for catching that a test 4190 // program exits before returning control to Google Test: 4191 // 4192 // 1. Upon start, Google Test creates a file whose absolute path 4193 // is specified by the environment variable 4194 // TEST_PREMATURE_EXIT_FILE. 4195 // 2. When Google Test has finished its work, it deletes the file. 4196 // 4197 // This allows a test runner to set TEST_PREMATURE_EXIT_FILE before 4198 // running a Google-Test-based test program and check the existence 4199 // of the file at the end of the test execution to see if it has 4200 // exited prematurely. 4201 4202 // If we are in the child process of a death test, don't 4203 // create/delete the premature exit file, as doing so is unnecessary 4204 // and will confuse the parent process. Otherwise, create/delete 4205 // the file upon entering/leaving this function. If the program 4206 // somehow exits before this function has a chance to return, the 4207 // premature-exit file will be left undeleted, causing a test runner 4208 // that understands the premature-exit-file protocol to report the 4209 // test as having failed. 4210 const internal::ScopedPrematureExitFile premature_exit_file( 4211 in_death_test_child_process ? 4212 NULL : internal::posix::GetEnv("TEST_PREMATURE_EXIT_FILE")); 4213 4214 // Captures the value of GTEST_FLAG(catch_exceptions). This value will be 4215 // used for the duration of the program. 4216 impl()->set_catch_exceptions(GTEST_FLAG(catch_exceptions)); 4217 4218 #if GTEST_HAS_SEH 4219 // Either the user wants Google Test to catch exceptions thrown by the 4220 // tests or this is executing in the context of death test child 4221 // process. In either case the user does not want to see pop-up dialogs 4222 // about crashes - they are expected. 4223 if (impl()->catch_exceptions() || in_death_test_child_process) { 4224 # if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT 4225 // SetErrorMode doesn't exist on CE. 4226 SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOALIGNMENTFAULTEXCEPT | 4227 SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX); 4228 # endif // !GTEST_OS_WINDOWS_MOBILE 4229 4230 # if (defined(_MSC_VER) || GTEST_OS_WINDOWS_MINGW) && !GTEST_OS_WINDOWS_MOBILE 4231 // Death test children can be terminated with _abort(). On Windows, 4232 // _abort() can show a dialog with a warning message. This forces the 4233 // abort message to go to stderr instead. 4234 _set_error_mode(_OUT_TO_STDERR); 4235 # endif 4236 4237 # if _MSC_VER >= 1400 && !GTEST_OS_WINDOWS_MOBILE 4238 // In the debug version, Visual Studio pops up a separate dialog 4239 // offering a choice to debug the aborted program. We need to suppress 4240 // this dialog or it will pop up for every EXPECT/ASSERT_DEATH statement 4241 // executed. Google Test will notify the user of any unexpected 4242 // failure via stderr. 4243 // 4244 // VC++ doesn't define _set_abort_behavior() prior to the version 8.0. 4245 // Users of prior VC versions shall suffer the agony and pain of 4246 // clicking through the countless debug dialogs. 4247 // TODO(vladl (at) google.com): find a way to suppress the abort dialog() in the 4248 // debug mode when compiled with VC 7.1 or lower. 4249 if (!GTEST_FLAG(break_on_failure)) 4250 _set_abort_behavior( 4251 0x0, // Clear the following flags: 4252 _WRITE_ABORT_MSG | _CALL_REPORTFAULT); // pop-up window, core dump. 4253 # endif 4254 } 4255 #endif // GTEST_HAS_SEH 4256 4257 return internal::HandleExceptionsInMethodIfSupported( 4258 impl(), 4259 &internal::UnitTestImpl::RunAllTests, 4260 "auxiliary test code (environments or event listeners)") ? 0 : 1; 4261 } 4262 4263 // Returns the working directory when the first TEST() or TEST_F() was 4264 // executed. 4265 const char* UnitTest::original_working_dir() const { 4266 return impl_->original_working_dir_.c_str(); 4267 } 4268 4269 // Returns the TestCase object for the test that's currently running, 4270 // or NULL if no test is running. 4271 const TestCase* UnitTest::current_test_case() const 4272 GTEST_LOCK_EXCLUDED_(mutex_) { 4273 internal::MutexLock lock(&mutex_); 4274 return impl_->current_test_case(); 4275 } 4276 4277 // Returns the TestInfo object for the test that's currently running, 4278 // or NULL if no test is running. 4279 const TestInfo* UnitTest::current_test_info() const 4280 GTEST_LOCK_EXCLUDED_(mutex_) { 4281 internal::MutexLock lock(&mutex_); 4282 return impl_->current_test_info(); 4283 } 4284 4285 // Returns the random seed used at the start of the current test run. 4286 int UnitTest::random_seed() const { return impl_->random_seed(); } 4287 4288 #if GTEST_HAS_PARAM_TEST 4289 // Returns ParameterizedTestCaseRegistry object used to keep track of 4290 // value-parameterized tests and instantiate and register them. 4291 internal::ParameterizedTestCaseRegistry& 4292 UnitTest::parameterized_test_registry() 4293 GTEST_LOCK_EXCLUDED_(mutex_) { 4294 return impl_->parameterized_test_registry(); 4295 } 4296 #endif // GTEST_HAS_PARAM_TEST 4297 4298 // Creates an empty UnitTest. 4299 UnitTest::UnitTest() { 4300 impl_ = new internal::UnitTestImpl(this); 4301 } 4302 4303 // Destructor of UnitTest. 4304 UnitTest::~UnitTest() { 4305 delete impl_; 4306 } 4307 4308 // Pushes a trace defined by SCOPED_TRACE() on to the per-thread 4309 // Google Test trace stack. 4310 void UnitTest::PushGTestTrace(const internal::TraceInfo& trace) 4311 GTEST_LOCK_EXCLUDED_(mutex_) { 4312 internal::MutexLock lock(&mutex_); 4313 impl_->gtest_trace_stack().push_back(trace); 4314 } 4315 4316 // Pops a trace from the per-thread Google Test trace stack. 4317 void UnitTest::PopGTestTrace() 4318 GTEST_LOCK_EXCLUDED_(mutex_) { 4319 internal::MutexLock lock(&mutex_); 4320 impl_->gtest_trace_stack().pop_back(); 4321 } 4322 4323 namespace internal { 4324 4325 UnitTestImpl::UnitTestImpl(UnitTest* parent) 4326 : parent_(parent), 4327 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4355 /* using this in initializer */) 4328 default_global_test_part_result_reporter_(this), 4329 default_per_thread_test_part_result_reporter_(this), 4330 GTEST_DISABLE_MSC_WARNINGS_POP_() 4331 global_test_part_result_repoter_( 4332 &default_global_test_part_result_reporter_), 4333 per_thread_test_part_result_reporter_( 4334 &default_per_thread_test_part_result_reporter_), 4335 #if GTEST_HAS_PARAM_TEST 4336 parameterized_test_registry_(), 4337 parameterized_tests_registered_(false), 4338 #endif // GTEST_HAS_PARAM_TEST 4339 last_death_test_case_(-1), 4340 current_test_case_(NULL), 4341 current_test_info_(NULL), 4342 ad_hoc_test_result_(), 4343 os_stack_trace_getter_(NULL), 4344 post_flag_parse_init_performed_(false), 4345 random_seed_(0), // Will be overridden by the flag before first use. 4346 random_(0), // Will be reseeded before first use. 4347 start_timestamp_(0), 4348 elapsed_time_(0), 4349 #if GTEST_HAS_DEATH_TEST 4350 death_test_factory_(new DefaultDeathTestFactory), 4351 #endif 4352 // Will be overridden by the flag before first use. 4353 catch_exceptions_(false) { 4354 listeners()->SetDefaultResultPrinter(new PrettyUnitTestResultPrinter); 4355 } 4356 4357 UnitTestImpl::~UnitTestImpl() { 4358 // Deletes every TestCase. 4359 ForEach(test_cases_, internal::Delete<TestCase>); 4360 4361 // Deletes every Environment. 4362 ForEach(environments_, internal::Delete<Environment>); 4363 4364 delete os_stack_trace_getter_; 4365 } 4366 4367 // Adds a TestProperty to the current TestResult object when invoked in a 4368 // context of a test, to current test case's ad_hoc_test_result when invoke 4369 // from SetUpTestCase/TearDownTestCase, or to the global property set 4370 // otherwise. If the result already contains a property with the same key, 4371 // the value will be updated. 4372 void UnitTestImpl::RecordProperty(const TestProperty& test_property) { 4373 std::string xml_element; 4374 TestResult* test_result; // TestResult appropriate for property recording. 4375 4376 if (current_test_info_ != NULL) { 4377 xml_element = "testcase"; 4378 test_result = &(current_test_info_->result_); 4379 } else if (current_test_case_ != NULL) { 4380 xml_element = "testsuite"; 4381 test_result = &(current_test_case_->ad_hoc_test_result_); 4382 } else { 4383 xml_element = "testsuites"; 4384 test_result = &ad_hoc_test_result_; 4385 } 4386 test_result->RecordProperty(xml_element, test_property); 4387 } 4388 4389 #if GTEST_HAS_DEATH_TEST 4390 // Disables event forwarding if the control is currently in a death test 4391 // subprocess. Must not be called before InitGoogleTest. 4392 void UnitTestImpl::SuppressTestEventsIfInSubprocess() { 4393 if (internal_run_death_test_flag_.get() != NULL) 4394 listeners()->SuppressEventForwarding(); 4395 } 4396 #endif // GTEST_HAS_DEATH_TEST 4397 4398 // Initializes event listeners performing XML output as specified by 4399 // UnitTestOptions. Must not be called before InitGoogleTest. 4400 void UnitTestImpl::ConfigureXmlOutput() { 4401 const std::string& output_format = UnitTestOptions::GetOutputFormat(); 4402 if (output_format == "xml") { 4403 listeners()->SetDefaultXmlGenerator(new XmlUnitTestResultPrinter( 4404 UnitTestOptions::GetAbsolutePathToOutputFile().c_str())); 4405 } else if (output_format != "") { 4406 printf("WARNING: unrecognized output format \"%s\" ignored.\n", 4407 output_format.c_str()); 4408 fflush(stdout); 4409 } 4410 } 4411 4412 #if GTEST_CAN_STREAM_RESULTS_ 4413 // Initializes event listeners for streaming test results in string form. 4414 // Must not be called before InitGoogleTest. 4415 void UnitTestImpl::ConfigureStreamingOutput() { 4416 const std::string& target = GTEST_FLAG(stream_result_to); 4417 if (!target.empty()) { 4418 const size_t pos = target.find(':'); 4419 if (pos != std::string::npos) { 4420 listeners()->Append(new StreamingListener(target.substr(0, pos), 4421 target.substr(pos+1))); 4422 } else { 4423 printf("WARNING: unrecognized streaming target \"%s\" ignored.\n", 4424 target.c_str()); 4425 fflush(stdout); 4426 } 4427 } 4428 } 4429 #endif // GTEST_CAN_STREAM_RESULTS_ 4430 4431 // Performs initialization dependent upon flag values obtained in 4432 // ParseGoogleTestFlagsOnly. Is called from InitGoogleTest after the call to 4433 // ParseGoogleTestFlagsOnly. In case a user neglects to call InitGoogleTest 4434 // this function is also called from RunAllTests. Since this function can be 4435 // called more than once, it has to be idempotent. 4436 void UnitTestImpl::PostFlagParsingInit() { 4437 // Ensures that this function does not execute more than once. 4438 if (!post_flag_parse_init_performed_) { 4439 post_flag_parse_init_performed_ = true; 4440 4441 #if defined(GTEST_CUSTOM_TEST_EVENT_LISTENER_) 4442 // Register to send notifications about key process state changes. 4443 listeners()->Append(new GTEST_CUSTOM_TEST_EVENT_LISTENER_()); 4444 #endif // defined(GTEST_CUSTOM_TEST_EVENT_LISTENER_) 4445 4446 #if GTEST_HAS_DEATH_TEST 4447 InitDeathTestSubprocessControlInfo(); 4448 SuppressTestEventsIfInSubprocess(); 4449 #endif // GTEST_HAS_DEATH_TEST 4450 4451 // Registers parameterized tests. This makes parameterized tests 4452 // available to the UnitTest reflection API without running 4453 // RUN_ALL_TESTS. 4454 RegisterParameterizedTests(); 4455 4456 // Configures listeners for XML output. This makes it possible for users 4457 // to shut down the default XML output before invoking RUN_ALL_TESTS. 4458 ConfigureXmlOutput(); 4459 4460 #if GTEST_CAN_STREAM_RESULTS_ 4461 // Configures listeners for streaming test results to the specified server. 4462 ConfigureStreamingOutput(); 4463 #endif // GTEST_CAN_STREAM_RESULTS_ 4464 } 4465 } 4466 4467 // A predicate that checks the name of a TestCase against a known 4468 // value. 4469 // 4470 // This is used for implementation of the UnitTest class only. We put 4471 // it in the anonymous namespace to prevent polluting the outer 4472 // namespace. 4473 // 4474 // TestCaseNameIs is copyable. 4475 class TestCaseNameIs { 4476 public: 4477 // Constructor. 4478 explicit TestCaseNameIs(const std::string& name) 4479 : name_(name) {} 4480 4481 // Returns true iff the name of test_case matches name_. 4482 bool operator()(const TestCase* test_case) const { 4483 return test_case != NULL && strcmp(test_case->name(), name_.c_str()) == 0; 4484 } 4485 4486 private: 4487 std::string name_; 4488 }; 4489 4490 // Finds and returns a TestCase with the given name. If one doesn't 4491 // exist, creates one and returns it. It's the CALLER'S 4492 // RESPONSIBILITY to ensure that this function is only called WHEN THE 4493 // TESTS ARE NOT SHUFFLED. 4494 // 4495 // Arguments: 4496 // 4497 // test_case_name: name of the test case 4498 // type_param: the name of the test case's type parameter, or NULL if 4499 // this is not a typed or a type-parameterized test case. 4500 // set_up_tc: pointer to the function that sets up the test case 4501 // tear_down_tc: pointer to the function that tears down the test case 4502 TestCase* UnitTestImpl::GetTestCase(const char* test_case_name, 4503 const char* type_param, 4504 Test::SetUpTestCaseFunc set_up_tc, 4505 Test::TearDownTestCaseFunc tear_down_tc) { 4506 // Can we find a TestCase with the given name? 4507 const std::vector<TestCase*>::const_iterator test_case = 4508 std::find_if(test_cases_.begin(), test_cases_.end(), 4509 TestCaseNameIs(test_case_name)); 4510 4511 if (test_case != test_cases_.end()) 4512 return *test_case; 4513 4514 // No. Let's create one. 4515 TestCase* const new_test_case = 4516 new TestCase(test_case_name, type_param, set_up_tc, tear_down_tc); 4517 4518 // Is this a death test case? 4519 if (internal::UnitTestOptions::MatchesFilter(test_case_name, 4520 kDeathTestCaseFilter)) { 4521 // Yes. Inserts the test case after the last death test case 4522 // defined so far. This only works when the test cases haven't 4523 // been shuffled. Otherwise we may end up running a death test 4524 // after a non-death test. 4525 ++last_death_test_case_; 4526 test_cases_.insert(test_cases_.begin() + last_death_test_case_, 4527 new_test_case); 4528 } else { 4529 // No. Appends to the end of the list. 4530 test_cases_.push_back(new_test_case); 4531 } 4532 4533 test_case_indices_.push_back(static_cast<int>(test_case_indices_.size())); 4534 return new_test_case; 4535 } 4536 4537 // Helpers for setting up / tearing down the given environment. They 4538 // are for use in the ForEach() function. 4539 static void SetUpEnvironment(Environment* env) { env->SetUp(); } 4540 static void TearDownEnvironment(Environment* env) { env->TearDown(); } 4541 4542 // Runs all tests in this UnitTest object, prints the result, and 4543 // returns true if all tests are successful. If any exception is 4544 // thrown during a test, the test is considered to be failed, but the 4545 // rest of the tests will still be run. 4546 // 4547 // When parameterized tests are enabled, it expands and registers 4548 // parameterized tests first in RegisterParameterizedTests(). 4549 // All other functions called from RunAllTests() may safely assume that 4550 // parameterized tests are ready to be counted and run. 4551 bool UnitTestImpl::RunAllTests() { 4552 // Makes sure InitGoogleTest() was called. 4553 if (!GTestIsInitialized()) { 4554 printf("%s", 4555 "\nThis test program did NOT call ::testing::InitGoogleTest " 4556 "before calling RUN_ALL_TESTS(). Please fix it.\n"); 4557 return false; 4558 } 4559 4560 // Do not run any test if the --help flag was specified. 4561 if (g_help_flag) 4562 return true; 4563 4564 // Repeats the call to the post-flag parsing initialization in case the 4565 // user didn't call InitGoogleTest. 4566 PostFlagParsingInit(); 4567 4568 // Even if sharding is not on, test runners may want to use the 4569 // GTEST_SHARD_STATUS_FILE to query whether the test supports the sharding 4570 // protocol. 4571 internal::WriteToShardStatusFileIfNeeded(); 4572 4573 // True iff we are in a subprocess for running a thread-safe-style 4574 // death test. 4575 bool in_subprocess_for_death_test = false; 4576 4577 #if GTEST_HAS_DEATH_TEST 4578 in_subprocess_for_death_test = (internal_run_death_test_flag_.get() != NULL); 4579 # if defined(GTEST_EXTRA_DEATH_TEST_CHILD_SETUP_) 4580 if (in_subprocess_for_death_test) { 4581 GTEST_EXTRA_DEATH_TEST_CHILD_SETUP_(); 4582 } 4583 # endif // defined(GTEST_EXTRA_DEATH_TEST_CHILD_SETUP_) 4584 #endif // GTEST_HAS_DEATH_TEST 4585 4586 const bool should_shard = ShouldShard(kTestTotalShards, kTestShardIndex, 4587 in_subprocess_for_death_test); 4588 4589 // Compares the full test names with the filter to decide which 4590 // tests to run. 4591 const bool has_tests_to_run = FilterTests(should_shard 4592 ? HONOR_SHARDING_PROTOCOL 4593 : IGNORE_SHARDING_PROTOCOL) > 0; 4594 4595 // Lists the tests and exits if the --gtest_list_tests flag was specified. 4596 if (GTEST_FLAG(list_tests)) { 4597 // This must be called *after* FilterTests() has been called. 4598 ListTestsMatchingFilter(); 4599 return true; 4600 } 4601 4602 random_seed_ = GTEST_FLAG(shuffle) ? 4603 GetRandomSeedFromFlag(GTEST_FLAG(random_seed)) : 0; 4604 4605 // True iff at least one test has failed. 4606 bool failed = false; 4607 4608 TestEventListener* repeater = listeners()->repeater(); 4609 4610 start_timestamp_ = GetTimeInMillis(); 4611 repeater->OnTestProgramStart(*parent_); 4612 4613 // How many times to repeat the tests? We don't want to repeat them 4614 // when we are inside the subprocess of a death test. 4615 const int repeat = in_subprocess_for_death_test ? 1 : GTEST_FLAG(repeat); 4616 // Repeats forever if the repeat count is negative. 4617 const bool forever = repeat < 0; 4618 for (int i = 0; forever || i != repeat; i++) { 4619 // We want to preserve failures generated by ad-hoc test 4620 // assertions executed before RUN_ALL_TESTS(). 4621 ClearNonAdHocTestResult(); 4622 4623 const TimeInMillis start = GetTimeInMillis(); 4624 4625 // Shuffles test cases and tests if requested. 4626 if (has_tests_to_run && GTEST_FLAG(shuffle)) { 4627 random()->Reseed(random_seed_); 4628 // This should be done before calling OnTestIterationStart(), 4629 // such that a test event listener can see the actual test order 4630 // in the event. 4631 ShuffleTests(); 4632 } 4633 4634 // Tells the unit test event listeners that the tests are about to start. 4635 repeater->OnTestIterationStart(*parent_, i); 4636 4637 // Runs each test case if there is at least one test to run. 4638 if (has_tests_to_run) { 4639 // Sets up all environments beforehand. 4640 repeater->OnEnvironmentsSetUpStart(*parent_); 4641 ForEach(environments_, SetUpEnvironment); 4642 repeater->OnEnvironmentsSetUpEnd(*parent_); 4643 4644 // Runs the tests only if there was no fatal failure during global 4645 // set-up. 4646 if (!Test::HasFatalFailure()) { 4647 for (int test_index = 0; test_index < total_test_case_count(); 4648 test_index++) { 4649 GetMutableTestCase(test_index)->Run(); 4650 } 4651 } 4652 4653 // Tears down all environments in reverse order afterwards. 4654 repeater->OnEnvironmentsTearDownStart(*parent_); 4655 std::for_each(environments_.rbegin(), environments_.rend(), 4656 TearDownEnvironment); 4657 repeater->OnEnvironmentsTearDownEnd(*parent_); 4658 } 4659 4660 elapsed_time_ = GetTimeInMillis() - start; 4661 4662 // Tells the unit test event listener that the tests have just finished. 4663 repeater->OnTestIterationEnd(*parent_, i); 4664 4665 // Gets the result and clears it. 4666 if (!Passed()) { 4667 failed = true; 4668 } 4669 4670 // Restores the original test order after the iteration. This 4671 // allows the user to quickly repro a failure that happens in the 4672 // N-th iteration without repeating the first (N - 1) iterations. 4673 // This is not enclosed in "if (GTEST_FLAG(shuffle)) { ... }", in 4674 // case the user somehow changes the value of the flag somewhere 4675 // (it's always safe to unshuffle the tests). 4676 UnshuffleTests(); 4677 4678 if (GTEST_FLAG(shuffle)) { 4679 // Picks a new random seed for each iteration. 4680 random_seed_ = GetNextRandomSeed(random_seed_); 4681 } 4682 } 4683 4684 repeater->OnTestProgramEnd(*parent_); 4685 4686 return !failed; 4687 } 4688 4689 // Reads the GTEST_SHARD_STATUS_FILE environment variable, and creates the file 4690 // if the variable is present. If a file already exists at this location, this 4691 // function will write over it. If the variable is present, but the file cannot 4692 // be created, prints an error and exits. 4693 void WriteToShardStatusFileIfNeeded() { 4694 const char* const test_shard_file = posix::GetEnv(kTestShardStatusFile); 4695 if (test_shard_file != NULL) { 4696 FILE* const file = posix::FOpen(test_shard_file, "w"); 4697 if (file == NULL) { 4698 ColoredPrintf(COLOR_RED, 4699 "Could not write to the test shard status file \"%s\" " 4700 "specified by the %s environment variable.\n", 4701 test_shard_file, kTestShardStatusFile); 4702 fflush(stdout); 4703 exit(EXIT_FAILURE); 4704 } 4705 fclose(file); 4706 } 4707 } 4708 4709 // Checks whether sharding is enabled by examining the relevant 4710 // environment variable values. If the variables are present, 4711 // but inconsistent (i.e., shard_index >= total_shards), prints 4712 // an error and exits. If in_subprocess_for_death_test, sharding is 4713 // disabled because it must only be applied to the original test 4714 // process. Otherwise, we could filter out death tests we intended to execute. 4715 bool ShouldShard(const char* total_shards_env, 4716 const char* shard_index_env, 4717 bool in_subprocess_for_death_test) { 4718 if (in_subprocess_for_death_test) { 4719 return false; 4720 } 4721 4722 const Int32 total_shards = Int32FromEnvOrDie(total_shards_env, -1); 4723 const Int32 shard_index = Int32FromEnvOrDie(shard_index_env, -1); 4724 4725 if (total_shards == -1 && shard_index == -1) { 4726 return false; 4727 } else if (total_shards == -1 && shard_index != -1) { 4728 const Message msg = Message() 4729 << "Invalid environment variables: you have " 4730 << kTestShardIndex << " = " << shard_index 4731 << ", but have left " << kTestTotalShards << " unset.\n"; 4732 ColoredPrintf(COLOR_RED, msg.GetString().c_str()); 4733 fflush(stdout); 4734 exit(EXIT_FAILURE); 4735 } else if (total_shards != -1 && shard_index == -1) { 4736 const Message msg = Message() 4737 << "Invalid environment variables: you have " 4738 << kTestTotalShards << " = " << total_shards 4739 << ", but have left " << kTestShardIndex << " unset.\n"; 4740 ColoredPrintf(COLOR_RED, msg.GetString().c_str()); 4741 fflush(stdout); 4742 exit(EXIT_FAILURE); 4743 } else if (shard_index < 0 || shard_index >= total_shards) { 4744 const Message msg = Message() 4745 << "Invalid environment variables: we require 0 <= " 4746 << kTestShardIndex << " < " << kTestTotalShards 4747 << ", but you have " << kTestShardIndex << "=" << shard_index 4748 << ", " << kTestTotalShards << "=" << total_shards << ".\n"; 4749 ColoredPrintf(COLOR_RED, msg.GetString().c_str()); 4750 fflush(stdout); 4751 exit(EXIT_FAILURE); 4752 } 4753 4754 return total_shards > 1; 4755 } 4756 4757 // Parses the environment variable var as an Int32. If it is unset, 4758 // returns default_val. If it is not an Int32, prints an error 4759 // and aborts. 4760 Int32 Int32FromEnvOrDie(const char* var, Int32 default_val) { 4761 const char* str_val = posix::GetEnv(var); 4762 if (str_val == NULL) { 4763 return default_val; 4764 } 4765 4766 Int32 result; 4767 if (!ParseInt32(Message() << "The value of environment variable " << var, 4768 str_val, &result)) { 4769 exit(EXIT_FAILURE); 4770 } 4771 return result; 4772 } 4773 4774 // Given the total number of shards, the shard index, and the test id, 4775 // returns true iff the test should be run on this shard. The test id is 4776 // some arbitrary but unique non-negative integer assigned to each test 4777 // method. Assumes that 0 <= shard_index < total_shards. 4778 bool ShouldRunTestOnShard(int total_shards, int shard_index, int test_id) { 4779 return (test_id % total_shards) == shard_index; 4780 } 4781 4782 // Compares the name of each test with the user-specified filter to 4783 // decide whether the test should be run, then records the result in 4784 // each TestCase and TestInfo object. 4785 // If shard_tests == true, further filters tests based on sharding 4786 // variables in the environment - see 4787 // http://code.google.com/p/googletest/wiki/GoogleTestAdvancedGuide. 4788 // Returns the number of tests that should run. 4789 int UnitTestImpl::FilterTests(ReactionToSharding shard_tests) { 4790 const Int32 total_shards = shard_tests == HONOR_SHARDING_PROTOCOL ? 4791 Int32FromEnvOrDie(kTestTotalShards, -1) : -1; 4792 const Int32 shard_index = shard_tests == HONOR_SHARDING_PROTOCOL ? 4793 Int32FromEnvOrDie(kTestShardIndex, -1) : -1; 4794 4795 // num_runnable_tests are the number of tests that will 4796 // run across all shards (i.e., match filter and are not disabled). 4797 // num_selected_tests are the number of tests to be run on 4798 // this shard. 4799 int num_runnable_tests = 0; 4800 int num_selected_tests = 0; 4801 for (size_t i = 0; i < test_cases_.size(); i++) { 4802 TestCase* const test_case = test_cases_[i]; 4803 const std::string &test_case_name = test_case->name(); 4804 test_case->set_should_run(false); 4805 4806 for (size_t j = 0; j < test_case->test_info_list().size(); j++) { 4807 TestInfo* const test_info = test_case->test_info_list()[j]; 4808 const std::string test_name(test_info->name()); 4809 // A test is disabled if test case name or test name matches 4810 // kDisableTestFilter. 4811 const bool is_disabled = 4812 internal::UnitTestOptions::MatchesFilter(test_case_name, 4813 kDisableTestFilter) || 4814 internal::UnitTestOptions::MatchesFilter(test_name, 4815 kDisableTestFilter); 4816 test_info->is_disabled_ = is_disabled; 4817 4818 const bool matches_filter = 4819 internal::UnitTestOptions::FilterMatchesTest(test_case_name, 4820 test_name); 4821 test_info->matches_filter_ = matches_filter; 4822 4823 const bool is_runnable = 4824 (GTEST_FLAG(also_run_disabled_tests) || !is_disabled) && 4825 matches_filter; 4826 4827 const bool is_selected = is_runnable && 4828 (shard_tests == IGNORE_SHARDING_PROTOCOL || 4829 ShouldRunTestOnShard(total_shards, shard_index, 4830 num_runnable_tests)); 4831 4832 num_runnable_tests += is_runnable; 4833 num_selected_tests += is_selected; 4834 4835 test_info->should_run_ = is_selected; 4836 test_case->set_should_run(test_case->should_run() || is_selected); 4837 } 4838 } 4839 return num_selected_tests; 4840 } 4841 4842 // Prints the given C-string on a single line by replacing all '\n' 4843 // characters with string "\\n". If the output takes more than 4844 // max_length characters, only prints the first max_length characters 4845 // and "...". 4846 static void PrintOnOneLine(const char* str, int max_length) { 4847 if (str != NULL) { 4848 for (int i = 0; *str != '\0'; ++str) { 4849 if (i >= max_length) { 4850 printf("..."); 4851 break; 4852 } 4853 if (*str == '\n') { 4854 printf("\\n"); 4855 i += 2; 4856 } else { 4857 printf("%c", *str); 4858 ++i; 4859 } 4860 } 4861 } 4862 } 4863 4864 // Prints the names of the tests matching the user-specified filter flag. 4865 void UnitTestImpl::ListTestsMatchingFilter() { 4866 // Print at most this many characters for each type/value parameter. 4867 const int kMaxParamLength = 250; 4868 4869 for (size_t i = 0; i < test_cases_.size(); i++) { 4870 const TestCase* const test_case = test_cases_[i]; 4871 bool printed_test_case_name = false; 4872 4873 for (size_t j = 0; j < test_case->test_info_list().size(); j++) { 4874 const TestInfo* const test_info = 4875 test_case->test_info_list()[j]; 4876 if (test_info->matches_filter_) { 4877 if (!printed_test_case_name) { 4878 printed_test_case_name = true; 4879 printf("%s.", test_case->name()); 4880 if (test_case->type_param() != NULL) { 4881 printf(" # %s = ", kTypeParamLabel); 4882 // We print the type parameter on a single line to make 4883 // the output easy to parse by a program. 4884 PrintOnOneLine(test_case->type_param(), kMaxParamLength); 4885 } 4886 printf("\n"); 4887 } 4888 printf(" %s", test_info->name()); 4889 if (test_info->value_param() != NULL) { 4890 printf(" # %s = ", kValueParamLabel); 4891 // We print the value parameter on a single line to make the 4892 // output easy to parse by a program. 4893 PrintOnOneLine(test_info->value_param(), kMaxParamLength); 4894 } 4895 printf("\n"); 4896 } 4897 } 4898 } 4899 fflush(stdout); 4900 } 4901 4902 // Sets the OS stack trace getter. 4903 // 4904 // Does nothing if the input and the current OS stack trace getter are 4905 // the same; otherwise, deletes the old getter and makes the input the 4906 // current getter. 4907 void UnitTestImpl::set_os_stack_trace_getter( 4908 OsStackTraceGetterInterface* getter) { 4909 if (os_stack_trace_getter_ != getter) { 4910 delete os_stack_trace_getter_; 4911 os_stack_trace_getter_ = getter; 4912 } 4913 } 4914 4915 // Returns the current OS stack trace getter if it is not NULL; 4916 // otherwise, creates an OsStackTraceGetter, makes it the current 4917 // getter, and returns it. 4918 OsStackTraceGetterInterface* UnitTestImpl::os_stack_trace_getter() { 4919 if (os_stack_trace_getter_ == NULL) { 4920 #ifdef GTEST_OS_STACK_TRACE_GETTER_ 4921 os_stack_trace_getter_ = new GTEST_OS_STACK_TRACE_GETTER_; 4922 #else 4923 os_stack_trace_getter_ = new OsStackTraceGetter; 4924 #endif // GTEST_OS_STACK_TRACE_GETTER_ 4925 } 4926 4927 return os_stack_trace_getter_; 4928 } 4929 4930 // Returns the TestResult for the test that's currently running, or 4931 // the TestResult for the ad hoc test if no test is running. 4932 TestResult* UnitTestImpl::current_test_result() { 4933 return current_test_info_ ? 4934 &(current_test_info_->result_) : &ad_hoc_test_result_; 4935 } 4936 4937 // Shuffles all test cases, and the tests within each test case, 4938 // making sure that death tests are still run first. 4939 void UnitTestImpl::ShuffleTests() { 4940 // Shuffles the death test cases. 4941 ShuffleRange(random(), 0, last_death_test_case_ + 1, &test_case_indices_); 4942 4943 // Shuffles the non-death test cases. 4944 ShuffleRange(random(), last_death_test_case_ + 1, 4945 static_cast<int>(test_cases_.size()), &test_case_indices_); 4946 4947 // Shuffles the tests inside each test case. 4948 for (size_t i = 0; i < test_cases_.size(); i++) { 4949 test_cases_[i]->ShuffleTests(random()); 4950 } 4951 } 4952 4953 // Restores the test cases and tests to their order before the first shuffle. 4954 void UnitTestImpl::UnshuffleTests() { 4955 for (size_t i = 0; i < test_cases_.size(); i++) { 4956 // Unshuffles the tests in each test case. 4957 test_cases_[i]->UnshuffleTests(); 4958 // Resets the index of each test case. 4959 test_case_indices_[i] = static_cast<int>(i); 4960 } 4961 } 4962 4963 // Returns the current OS stack trace as an std::string. 4964 // 4965 // The maximum number of stack frames to be included is specified by 4966 // the gtest_stack_trace_depth flag. The skip_count parameter 4967 // specifies the number of top frames to be skipped, which doesn't 4968 // count against the number of frames to be included. 4969 // 4970 // For example, if Foo() calls Bar(), which in turn calls 4971 // GetCurrentOsStackTraceExceptTop(..., 1), Foo() will be included in 4972 // the trace but Bar() and GetCurrentOsStackTraceExceptTop() won't. 4973 std::string GetCurrentOsStackTraceExceptTop(UnitTest* /*unit_test*/, 4974 int skip_count) { 4975 // We pass skip_count + 1 to skip this wrapper function in addition 4976 // to what the user really wants to skip. 4977 return GetUnitTestImpl()->CurrentOsStackTraceExceptTop(skip_count + 1); 4978 } 4979 4980 // Used by the GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_ macro to 4981 // suppress unreachable code warnings. 4982 namespace { 4983 class ClassUniqueToAlwaysTrue {}; 4984 } 4985 4986 bool IsTrue(bool condition) { return condition; } 4987 4988 bool AlwaysTrue() { 4989 #if GTEST_HAS_EXCEPTIONS 4990 // This condition is always false so AlwaysTrue() never actually throws, 4991 // but it makes the compiler think that it may throw. 4992 if (IsTrue(false)) 4993 throw ClassUniqueToAlwaysTrue(); 4994 #endif // GTEST_HAS_EXCEPTIONS 4995 return true; 4996 } 4997 4998 // If *pstr starts with the given prefix, modifies *pstr to be right 4999 // past the prefix and returns true; otherwise leaves *pstr unchanged 5000 // and returns false. None of pstr, *pstr, and prefix can be NULL. 5001 bool SkipPrefix(const char* prefix, const char** pstr) { 5002 const size_t prefix_len = strlen(prefix); 5003 if (strncmp(*pstr, prefix, prefix_len) == 0) { 5004 *pstr += prefix_len; 5005 return true; 5006 } 5007 return false; 5008 } 5009 5010 // Parses a string as a command line flag. The string should have 5011 // the format "--flag=value". When def_optional is true, the "=value" 5012 // part can be omitted. 5013 // 5014 // Returns the value of the flag, or NULL if the parsing failed. 5015 const char* ParseFlagValue(const char* str, 5016 const char* flag, 5017 bool def_optional) { 5018 // str and flag must not be NULL. 5019 if (str == NULL || flag == NULL) return NULL; 5020 5021 // The flag must start with "--" followed by GTEST_FLAG_PREFIX_. 5022 const std::string flag_str = std::string("--") + GTEST_FLAG_PREFIX_ + flag; 5023 const size_t flag_len = flag_str.length(); 5024 if (strncmp(str, flag_str.c_str(), flag_len) != 0) return NULL; 5025 5026 // Skips the flag name. 5027 const char* flag_end = str + flag_len; 5028 5029 // When def_optional is true, it's OK to not have a "=value" part. 5030 if (def_optional && (flag_end[0] == '\0')) { 5031 return flag_end; 5032 } 5033 5034 // If def_optional is true and there are more characters after the 5035 // flag name, or if def_optional is false, there must be a '=' after 5036 // the flag name. 5037 if (flag_end[0] != '=') return NULL; 5038 5039 // Returns the string after "=". 5040 return flag_end + 1; 5041 } 5042 5043 // Parses a string for a bool flag, in the form of either 5044 // "--flag=value" or "--flag". 5045 // 5046 // In the former case, the value is taken as true as long as it does 5047 // not start with '0', 'f', or 'F'. 5048 // 5049 // In the latter case, the value is taken as true. 5050 // 5051 // On success, stores the value of the flag in *value, and returns 5052 // true. On failure, returns false without changing *value. 5053 bool ParseBoolFlag(const char* str, const char* flag, bool* value) { 5054 // Gets the value of the flag as a string. 5055 const char* const value_str = ParseFlagValue(str, flag, true); 5056 5057 // Aborts if the parsing failed. 5058 if (value_str == NULL) return false; 5059 5060 // Converts the string value to a bool. 5061 *value = !(*value_str == '0' || *value_str == 'f' || *value_str == 'F'); 5062 return true; 5063 } 5064 5065 // Parses a string for an Int32 flag, in the form of 5066 // "--flag=value". 5067 // 5068 // On success, stores the value of the flag in *value, and returns 5069 // true. On failure, returns false without changing *value. 5070 bool ParseInt32Flag(const char* str, const char* flag, Int32* value) { 5071 // Gets the value of the flag as a string. 5072 const char* const value_str = ParseFlagValue(str, flag, false); 5073 5074 // Aborts if the parsing failed. 5075 if (value_str == NULL) return false; 5076 5077 // Sets *value to the value of the flag. 5078 return ParseInt32(Message() << "The value of flag --" << flag, 5079 value_str, value); 5080 } 5081 5082 // Parses a string for a string flag, in the form of 5083 // "--flag=value". 5084 // 5085 // On success, stores the value of the flag in *value, and returns 5086 // true. On failure, returns false without changing *value. 5087 bool ParseStringFlag(const char* str, const char* flag, std::string* value) { 5088 // Gets the value of the flag as a string. 5089 const char* const value_str = ParseFlagValue(str, flag, false); 5090 5091 // Aborts if the parsing failed. 5092 if (value_str == NULL) return false; 5093 5094 // Sets *value to the value of the flag. 5095 *value = value_str; 5096 return true; 5097 } 5098 5099 // Determines whether a string has a prefix that Google Test uses for its 5100 // flags, i.e., starts with GTEST_FLAG_PREFIX_ or GTEST_FLAG_PREFIX_DASH_. 5101 // If Google Test detects that a command line flag has its prefix but is not 5102 // recognized, it will print its help message. Flags starting with 5103 // GTEST_INTERNAL_PREFIX_ followed by "internal_" are considered Google Test 5104 // internal flags and do not trigger the help message. 5105 static bool HasGoogleTestFlagPrefix(const char* str) { 5106 return (SkipPrefix("--", &str) || 5107 SkipPrefix("-", &str) || 5108 SkipPrefix("/", &str)) && 5109 !SkipPrefix(GTEST_FLAG_PREFIX_ "internal_", &str) && 5110 (SkipPrefix(GTEST_FLAG_PREFIX_, &str) || 5111 SkipPrefix(GTEST_FLAG_PREFIX_DASH_, &str)); 5112 } 5113 5114 // Prints a string containing code-encoded text. The following escape 5115 // sequences can be used in the string to control the text color: 5116 // 5117 // @@ prints a single '@' character. 5118 // @R changes the color to red. 5119 // @G changes the color to green. 5120 // @Y changes the color to yellow. 5121 // @D changes to the default terminal text color. 5122 // 5123 // TODO(wan (at) google.com): Write tests for this once we add stdout 5124 // capturing to Google Test. 5125 static void PrintColorEncoded(const char* str) { 5126 GTestColor color = COLOR_DEFAULT; // The current color. 5127 5128 // Conceptually, we split the string into segments divided by escape 5129 // sequences. Then we print one segment at a time. At the end of 5130 // each iteration, the str pointer advances to the beginning of the 5131 // next segment. 5132 for (;;) { 5133 const char* p = strchr(str, '@'); 5134 if (p == NULL) { 5135 ColoredPrintf(color, "%s", str); 5136 return; 5137 } 5138 5139 ColoredPrintf(color, "%s", std::string(str, p).c_str()); 5140 5141 const char ch = p[1]; 5142 str = p + 2; 5143 if (ch == '@') { 5144 ColoredPrintf(color, "@"); 5145 } else if (ch == 'D') { 5146 color = COLOR_DEFAULT; 5147 } else if (ch == 'R') { 5148 color = COLOR_RED; 5149 } else if (ch == 'G') { 5150 color = COLOR_GREEN; 5151 } else if (ch == 'Y') { 5152 color = COLOR_YELLOW; 5153 } else { 5154 --str; 5155 } 5156 } 5157 } 5158 5159 static const char kColorEncodedHelpMessage[] = 5160 "This program contains tests written using " GTEST_NAME_ ". You can use the\n" 5161 "following command line flags to control its behavior:\n" 5162 "\n" 5163 "Test Selection:\n" 5164 " @G--" GTEST_FLAG_PREFIX_ "list_tests@D\n" 5165 " List the names of all tests instead of running them. The name of\n" 5166 " TEST(Foo, Bar) is \"Foo.Bar\".\n" 5167 " @G--" GTEST_FLAG_PREFIX_ "filter=@YPOSTIVE_PATTERNS" 5168 "[@G-@YNEGATIVE_PATTERNS]@D\n" 5169 " Run only the tests whose name matches one of the positive patterns but\n" 5170 " none of the negative patterns. '?' matches any single character; '*'\n" 5171 " matches any substring; ':' separates two patterns.\n" 5172 " @G--" GTEST_FLAG_PREFIX_ "also_run_disabled_tests@D\n" 5173 " Run all disabled tests too.\n" 5174 "\n" 5175 "Test Execution:\n" 5176 " @G--" GTEST_FLAG_PREFIX_ "repeat=@Y[COUNT]@D\n" 5177 " Run the tests repeatedly; use a negative count to repeat forever.\n" 5178 " @G--" GTEST_FLAG_PREFIX_ "shuffle@D\n" 5179 " Randomize tests' orders on every iteration.\n" 5180 " @G--" GTEST_FLAG_PREFIX_ "random_seed=@Y[NUMBER]@D\n" 5181 " Random number seed to use for shuffling test orders (between 1 and\n" 5182 " 99999, or 0 to use a seed based on the current time).\n" 5183 "\n" 5184 "Test Output:\n" 5185 " @G--" GTEST_FLAG_PREFIX_ "color=@Y(@Gyes@Y|@Gno@Y|@Gauto@Y)@D\n" 5186 " Enable/disable colored output. The default is @Gauto@D.\n" 5187 " -@G-" GTEST_FLAG_PREFIX_ "print_time=0@D\n" 5188 " Don't print the elapsed time of each test.\n" 5189 " @G--" GTEST_FLAG_PREFIX_ "output=xml@Y[@G:@YDIRECTORY_PATH@G" 5190 GTEST_PATH_SEP_ "@Y|@G:@YFILE_PATH]@D\n" 5191 " Generate an XML report in the given directory or with the given file\n" 5192 " name. @YFILE_PATH@D defaults to @Gtest_details.xml@D.\n" 5193 #if GTEST_CAN_STREAM_RESULTS_ 5194 " @G--" GTEST_FLAG_PREFIX_ "stream_result_to=@YHOST@G:@YPORT@D\n" 5195 " Stream test results to the given server.\n" 5196 #endif // GTEST_CAN_STREAM_RESULTS_ 5197 "\n" 5198 "Assertion Behavior:\n" 5199 #if GTEST_HAS_DEATH_TEST && !GTEST_OS_WINDOWS 5200 " @G--" GTEST_FLAG_PREFIX_ "death_test_style=@Y(@Gfast@Y|@Gthreadsafe@Y)@D\n" 5201 " Set the default death test style.\n" 5202 #endif // GTEST_HAS_DEATH_TEST && !GTEST_OS_WINDOWS 5203 " @G--" GTEST_FLAG_PREFIX_ "break_on_failure@D\n" 5204 " Turn assertion failures into debugger break-points.\n" 5205 " @G--" GTEST_FLAG_PREFIX_ "throw_on_failure@D\n" 5206 " Turn assertion failures into C++ exceptions.\n" 5207 " @G--" GTEST_FLAG_PREFIX_ "catch_exceptions=0@D\n" 5208 " Do not report exceptions as test failures. Instead, allow them\n" 5209 " to crash the program or throw a pop-up (on Windows).\n" 5210 "\n" 5211 "Except for @G--" GTEST_FLAG_PREFIX_ "list_tests@D, you can alternatively set " 5212 "the corresponding\n" 5213 "environment variable of a flag (all letters in upper-case). For example, to\n" 5214 "disable colored text output, you can either specify @G--" GTEST_FLAG_PREFIX_ 5215 "color=no@D or set\n" 5216 "the @G" GTEST_FLAG_PREFIX_UPPER_ "COLOR@D environment variable to @Gno@D.\n" 5217 "\n" 5218 "For more information, please read the " GTEST_NAME_ " documentation at\n" 5219 "@G" GTEST_PROJECT_URL_ "@D. If you find a bug in " GTEST_NAME_ "\n" 5220 "(not one in your own code or tests), please report it to\n" 5221 "@G<" GTEST_DEV_EMAIL_ ">@D.\n"; 5222 5223 bool ParseGoogleTestFlag(const char* const arg) { 5224 return ParseBoolFlag(arg, kAlsoRunDisabledTestsFlag, 5225 >EST_FLAG(also_run_disabled_tests)) || 5226 ParseBoolFlag(arg, kBreakOnFailureFlag, 5227 >EST_FLAG(break_on_failure)) || 5228 ParseBoolFlag(arg, kCatchExceptionsFlag, 5229 >EST_FLAG(catch_exceptions)) || 5230 ParseStringFlag(arg, kColorFlag, >EST_FLAG(color)) || 5231 ParseStringFlag(arg, kDeathTestStyleFlag, 5232 >EST_FLAG(death_test_style)) || 5233 ParseBoolFlag(arg, kDeathTestUseFork, 5234 >EST_FLAG(death_test_use_fork)) || 5235 ParseStringFlag(arg, kFilterFlag, >EST_FLAG(filter)) || 5236 ParseStringFlag(arg, kInternalRunDeathTestFlag, 5237 >EST_FLAG(internal_run_death_test)) || 5238 ParseBoolFlag(arg, kListTestsFlag, >EST_FLAG(list_tests)) || 5239 ParseStringFlag(arg, kOutputFlag, >EST_FLAG(output)) || 5240 ParseBoolFlag(arg, kPrintTimeFlag, >EST_FLAG(print_time)) || 5241 ParseInt32Flag(arg, kRandomSeedFlag, >EST_FLAG(random_seed)) || 5242 ParseInt32Flag(arg, kRepeatFlag, >EST_FLAG(repeat)) || 5243 ParseBoolFlag(arg, kShuffleFlag, >EST_FLAG(shuffle)) || 5244 ParseInt32Flag(arg, kStackTraceDepthFlag, 5245 >EST_FLAG(stack_trace_depth)) || 5246 ParseStringFlag(arg, kStreamResultToFlag, 5247 >EST_FLAG(stream_result_to)) || 5248 ParseBoolFlag(arg, kThrowOnFailureFlag, 5249 >EST_FLAG(throw_on_failure)); 5250 } 5251 5252 #if GTEST_USE_OWN_FLAGFILE_FLAG_ 5253 void LoadFlagsFromFile(const std::string& path) { 5254 FILE* flagfile = posix::FOpen(path.c_str(), "r"); 5255 if (!flagfile) { 5256 fprintf(stderr, 5257 "Unable to open file \"%s\"\n", 5258 GTEST_FLAG(flagfile).c_str()); 5259 fflush(stderr); 5260 exit(EXIT_FAILURE); 5261 } 5262 std::string contents(ReadEntireFile(flagfile)); 5263 posix::FClose(flagfile); 5264 std::vector<std::string> lines; 5265 SplitString(contents, '\n', &lines); 5266 for (size_t i = 0; i < lines.size(); ++i) { 5267 if (lines[i].empty()) 5268 continue; 5269 if (!ParseGoogleTestFlag(lines[i].c_str())) 5270 g_help_flag = true; 5271 } 5272 } 5273 #endif // GTEST_USE_OWN_FLAGFILE_FLAG_ 5274 5275 // Parses the command line for Google Test flags, without initializing 5276 // other parts of Google Test. The type parameter CharType can be 5277 // instantiated to either char or wchar_t. 5278 template <typename CharType> 5279 void ParseGoogleTestFlagsOnlyImpl(int* argc, CharType** argv) { 5280 for (int i = 1; i < *argc; i++) { 5281 const std::string arg_string = StreamableToString(argv[i]); 5282 const char* const arg = arg_string.c_str(); 5283 5284 using internal::ParseBoolFlag; 5285 using internal::ParseInt32Flag; 5286 using internal::ParseStringFlag; 5287 5288 bool remove_flag = false; 5289 if (ParseGoogleTestFlag(arg)) { 5290 remove_flag = true; 5291 #if GTEST_USE_OWN_FLAGFILE_FLAG_ 5292 } else if (ParseStringFlag(arg, kFlagfileFlag, >EST_FLAG(flagfile))) { 5293 LoadFlagsFromFile(GTEST_FLAG(flagfile)); 5294 remove_flag = true; 5295 #endif // GTEST_USE_OWN_FLAGFILE_FLAG_ 5296 } else if (arg_string == "--help" || arg_string == "-h" || 5297 arg_string == "-?" || arg_string == "/?" || 5298 HasGoogleTestFlagPrefix(arg)) { 5299 // Both help flag and unrecognized Google Test flags (excluding 5300 // internal ones) trigger help display. 5301 g_help_flag = true; 5302 } 5303 5304 if (remove_flag) { 5305 // Shift the remainder of the argv list left by one. Note 5306 // that argv has (*argc + 1) elements, the last one always being 5307 // NULL. The following loop moves the trailing NULL element as 5308 // well. 5309 for (int j = i; j != *argc; j++) { 5310 argv[j] = argv[j + 1]; 5311 } 5312 5313 // Decrements the argument count. 5314 (*argc)--; 5315 5316 // We also need to decrement the iterator as we just removed 5317 // an element. 5318 i--; 5319 } 5320 } 5321 5322 if (g_help_flag) { 5323 // We print the help here instead of in RUN_ALL_TESTS(), as the 5324 // latter may not be called at all if the user is using Google 5325 // Test with another testing framework. 5326 PrintColorEncoded(kColorEncodedHelpMessage); 5327 } 5328 } 5329 5330 // Parses the command line for Google Test flags, without initializing 5331 // other parts of Google Test. 5332 void ParseGoogleTestFlagsOnly(int* argc, char** argv) { 5333 ParseGoogleTestFlagsOnlyImpl(argc, argv); 5334 } 5335 void ParseGoogleTestFlagsOnly(int* argc, wchar_t** argv) { 5336 ParseGoogleTestFlagsOnlyImpl(argc, argv); 5337 } 5338 5339 // The internal implementation of InitGoogleTest(). 5340 // 5341 // The type parameter CharType can be instantiated to either char or 5342 // wchar_t. 5343 template <typename CharType> 5344 void InitGoogleTestImpl(int* argc, CharType** argv) { 5345 // We don't want to run the initialization code twice. 5346 if (GTestIsInitialized()) return; 5347 5348 if (*argc <= 0) return; 5349 5350 g_argvs.clear(); 5351 for (int i = 0; i != *argc; i++) { 5352 g_argvs.push_back(StreamableToString(argv[i])); 5353 } 5354 5355 ParseGoogleTestFlagsOnly(argc, argv); 5356 GetUnitTestImpl()->PostFlagParsingInit(); 5357 } 5358 5359 } // namespace internal 5360 5361 // Initializes Google Test. This must be called before calling 5362 // RUN_ALL_TESTS(). In particular, it parses a command line for the 5363 // flags that Google Test recognizes. Whenever a Google Test flag is 5364 // seen, it is removed from argv, and *argc is decremented. 5365 // 5366 // No value is returned. Instead, the Google Test flag variables are 5367 // updated. 5368 // 5369 // Calling the function for the second time has no user-visible effect. 5370 void InitGoogleTest(int* argc, char** argv) { 5371 #if defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5372 GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_(argc, argv); 5373 #else // defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5374 internal::InitGoogleTestImpl(argc, argv); 5375 #endif // defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5376 } 5377 5378 // This overloaded version can be used in Windows programs compiled in 5379 // UNICODE mode. 5380 void InitGoogleTest(int* argc, wchar_t** argv) { 5381 #if defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5382 GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_(argc, argv); 5383 #else // defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5384 internal::InitGoogleTestImpl(argc, argv); 5385 #endif // defined(GTEST_CUSTOM_INIT_GOOGLE_TEST_FUNCTION_) 5386 } 5387 5388 } // namespace testing 5389