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     29 //
     30 // A unit test for Google Test itself.  This verifies that the basic
     31 // constructs of Google Test work.
     32 //
     33 // Author: wan (at) google.com (Zhanyong Wan)
     34 
     35 #include <gtest/gtest-spi.h>
     36 #include <gtest/gtest.h>
     37 
     38 // Indicates that this translation unit is part of Google Test's
     39 // implementation.  It must come before gtest-internal-inl.h is
     40 // included, or there will be a compiler error.  This trick is to
     41 // prevent a user from accidentally including gtest-internal-inl.h in
     42 // his code.
     43 #define GTEST_IMPLEMENTATION_ 1
     44 #include "src/gtest-internal-inl.h"
     45 #undef GTEST_IMPLEMENTATION_
     46 
     47 #include <stdlib.h>
     48 
     49 #if GTEST_HAS_PTHREAD
     50 #include <pthread.h>
     51 #endif  // GTEST_HAS_PTHREAD
     52 
     53 using testing::ScopedFakeTestPartResultReporter;
     54 using testing::TestPartResultArray;
     55 
     56 namespace posix = ::testing::internal::posix;
     57 using testing::internal::String;
     58 
     59 // Tests catching fatal failures.
     60 
     61 // A subroutine used by the following test.
     62 void TestEq1(int x) {
     63   ASSERT_EQ(1, x);
     64 }
     65 
     66 // This function calls a test subroutine, catches the fatal failure it
     67 // generates, and then returns early.
     68 void TryTestSubroutine() {
     69   // Calls a subrountine that yields a fatal failure.
     70   TestEq1(2);
     71 
     72   // Catches the fatal failure and aborts the test.
     73   //
     74   // The testing::Test:: prefix is necessary when calling
     75   // HasFatalFailure() outside of a TEST, TEST_F, or test fixture.
     76   if (testing::Test::HasFatalFailure()) return;
     77 
     78   // If we get here, something is wrong.
     79   FAIL() << "This should never be reached.";
     80 }
     81 
     82 TEST(PassingTest, PassingTest1) {
     83 }
     84 
     85 TEST(PassingTest, PassingTest2) {
     86 }
     87 
     88 // Tests catching a fatal failure in a subroutine.
     89 TEST(FatalFailureTest, FatalFailureInSubroutine) {
     90   printf("(expecting a failure that x should be 1)\n");
     91 
     92   TryTestSubroutine();
     93 }
     94 
     95 // Tests catching a fatal failure in a nested subroutine.
     96 TEST(FatalFailureTest, FatalFailureInNestedSubroutine) {
     97   printf("(expecting a failure that x should be 1)\n");
     98 
     99   // Calls a subrountine that yields a fatal failure.
    100   TryTestSubroutine();
    101 
    102   // Catches the fatal failure and aborts the test.
    103   //
    104   // When calling HasFatalFailure() inside a TEST, TEST_F, or test
    105   // fixture, the testing::Test:: prefix is not needed.
    106   if (HasFatalFailure()) return;
    107 
    108   // If we get here, something is wrong.
    109   FAIL() << "This should never be reached.";
    110 }
    111 
    112 // Tests HasFatalFailure() after a failed EXPECT check.
    113 TEST(FatalFailureTest, NonfatalFailureInSubroutine) {
    114   printf("(expecting a failure on false)\n");
    115   EXPECT_TRUE(false);  // Generates a nonfatal failure
    116   ASSERT_FALSE(HasFatalFailure());  // This should succeed.
    117 }
    118 
    119 // Tests interleaving user logging and Google Test assertions.
    120 TEST(LoggingTest, InterleavingLoggingAndAssertions) {
    121   static const int a[4] = {
    122     3, 9, 2, 6
    123   };
    124 
    125   printf("(expecting 2 failures on (3) >= (a[i]))\n");
    126   for (int i = 0; i < static_cast<int>(sizeof(a)/sizeof(*a)); i++) {
    127     printf("i == %d\n", i);
    128     EXPECT_GE(3, a[i]);
    129   }
    130 }
    131 
    132 // Tests the SCOPED_TRACE macro.
    133 
    134 // A helper function for testing SCOPED_TRACE.
    135 void SubWithoutTrace(int n) {
    136   EXPECT_EQ(1, n);
    137   ASSERT_EQ(2, n);
    138 }
    139 
    140 // Another helper function for testing SCOPED_TRACE.
    141 void SubWithTrace(int n) {
    142   SCOPED_TRACE(testing::Message() << "n = " << n);
    143 
    144   SubWithoutTrace(n);
    145 }
    146 
    147 // Tests that SCOPED_TRACE() obeys lexical scopes.
    148 TEST(SCOPED_TRACETest, ObeysScopes) {
    149   printf("(expected to fail)\n");
    150 
    151   // There should be no trace before SCOPED_TRACE() is invoked.
    152   ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";
    153 
    154   {
    155     SCOPED_TRACE("Expected trace");
    156     // After SCOPED_TRACE(), a failure in the current scope should contain
    157     // the trace.
    158     ADD_FAILURE() << "This failure is expected, and should have a trace.";
    159   }
    160 
    161   // Once the control leaves the scope of the SCOPED_TRACE(), there
    162   // should be no trace again.
    163   ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";
    164 }
    165 
    166 // Tests that SCOPED_TRACE works inside a loop.
    167 TEST(SCOPED_TRACETest, WorksInLoop) {
    168   printf("(expected to fail)\n");
    169 
    170   for (int i = 1; i <= 2; i++) {
    171     SCOPED_TRACE(testing::Message() << "i = " << i);
    172 
    173     SubWithoutTrace(i);
    174   }
    175 }
    176 
    177 // Tests that SCOPED_TRACE works in a subroutine.
    178 TEST(SCOPED_TRACETest, WorksInSubroutine) {
    179   printf("(expected to fail)\n");
    180 
    181   SubWithTrace(1);
    182   SubWithTrace(2);
    183 }
    184 
    185 // Tests that SCOPED_TRACE can be nested.
    186 TEST(SCOPED_TRACETest, CanBeNested) {
    187   printf("(expected to fail)\n");
    188 
    189   SCOPED_TRACE("");  // A trace without a message.
    190 
    191   SubWithTrace(2);
    192 }
    193 
    194 // Tests that multiple SCOPED_TRACEs can be used in the same scope.
    195 TEST(SCOPED_TRACETest, CanBeRepeated) {
    196   printf("(expected to fail)\n");
    197 
    198   SCOPED_TRACE("A");
    199   ADD_FAILURE()
    200       << "This failure is expected, and should contain trace point A.";
    201 
    202   SCOPED_TRACE("B");
    203   ADD_FAILURE()
    204       << "This failure is expected, and should contain trace point A and B.";
    205 
    206   {
    207     SCOPED_TRACE("C");
    208     ADD_FAILURE() << "This failure is expected, and should contain "
    209                   << "trace point A, B, and C.";
    210   }
    211 
    212   SCOPED_TRACE("D");
    213   ADD_FAILURE() << "This failure is expected, and should contain "
    214                 << "trace point A, B, and D.";
    215 }
    216 
    217 TEST(DisabledTestsWarningTest,
    218      DISABLED_AlsoRunDisabledTestsFlagSuppressesWarning) {
    219   // This test body is intentionally empty.  Its sole purpose is for
    220   // verifying that the --gtest_also_run_disabled_tests flag
    221   // suppresses the "YOU HAVE 12 DISABLED TESTS" warning at the end of
    222   // the test output.
    223 }
    224 
    225 // Tests using assertions outside of TEST and TEST_F.
    226 //
    227 // This function creates two failures intentionally.
    228 void AdHocTest() {
    229   printf("The non-test part of the code is expected to have 2 failures.\n\n");
    230   EXPECT_TRUE(false);
    231   EXPECT_EQ(2, 3);
    232 }
    233 
    234 // Runs all TESTs, all TEST_Fs, and the ad hoc test.
    235 int RunAllTests() {
    236   AdHocTest();
    237   return RUN_ALL_TESTS();
    238 }
    239 
    240 // Tests non-fatal failures in the fixture constructor.
    241 class NonFatalFailureInFixtureConstructorTest : public testing::Test {
    242  protected:
    243   NonFatalFailureInFixtureConstructorTest() {
    244     printf("(expecting 5 failures)\n");
    245     ADD_FAILURE() << "Expected failure #1, in the test fixture c'tor.";
    246   }
    247 
    248   ~NonFatalFailureInFixtureConstructorTest() {
    249     ADD_FAILURE() << "Expected failure #5, in the test fixture d'tor.";
    250   }
    251 
    252   virtual void SetUp() {
    253     ADD_FAILURE() << "Expected failure #2, in SetUp().";
    254   }
    255 
    256   virtual void TearDown() {
    257     ADD_FAILURE() << "Expected failure #4, in TearDown.";
    258   }
    259 };
    260 
    261 TEST_F(NonFatalFailureInFixtureConstructorTest, FailureInConstructor) {
    262   ADD_FAILURE() << "Expected failure #3, in the test body.";
    263 }
    264 
    265 // Tests fatal failures in the fixture constructor.
    266 class FatalFailureInFixtureConstructorTest : public testing::Test {
    267  protected:
    268   FatalFailureInFixtureConstructorTest() {
    269     printf("(expecting 2 failures)\n");
    270     Init();
    271   }
    272 
    273   ~FatalFailureInFixtureConstructorTest() {
    274     ADD_FAILURE() << "Expected failure #2, in the test fixture d'tor.";
    275   }
    276 
    277   virtual void SetUp() {
    278     ADD_FAILURE() << "UNEXPECTED failure in SetUp().  "
    279                   << "We should never get here, as the test fixture c'tor "
    280                   << "had a fatal failure.";
    281   }
    282 
    283   virtual void TearDown() {
    284     ADD_FAILURE() << "UNEXPECTED failure in TearDown().  "
    285                   << "We should never get here, as the test fixture c'tor "
    286                   << "had a fatal failure.";
    287   }
    288  private:
    289   void Init() {
    290     FAIL() << "Expected failure #1, in the test fixture c'tor.";
    291   }
    292 };
    293 
    294 TEST_F(FatalFailureInFixtureConstructorTest, FailureInConstructor) {
    295   ADD_FAILURE() << "UNEXPECTED failure in the test body.  "
    296                 << "We should never get here, as the test fixture c'tor "
    297                 << "had a fatal failure.";
    298 }
    299 
    300 // Tests non-fatal failures in SetUp().
    301 class NonFatalFailureInSetUpTest : public testing::Test {
    302  protected:
    303   virtual ~NonFatalFailureInSetUpTest() {
    304     Deinit();
    305   }
    306 
    307   virtual void SetUp() {
    308     printf("(expecting 4 failures)\n");
    309     ADD_FAILURE() << "Expected failure #1, in SetUp().";
    310   }
    311 
    312   virtual void TearDown() {
    313     FAIL() << "Expected failure #3, in TearDown().";
    314   }
    315  private:
    316   void Deinit() {
    317     FAIL() << "Expected failure #4, in the test fixture d'tor.";
    318   }
    319 };
    320 
    321 TEST_F(NonFatalFailureInSetUpTest, FailureInSetUp) {
    322   FAIL() << "Expected failure #2, in the test function.";
    323 }
    324 
    325 // Tests fatal failures in SetUp().
    326 class FatalFailureInSetUpTest : public testing::Test {
    327  protected:
    328   virtual ~FatalFailureInSetUpTest() {
    329     Deinit();
    330   }
    331 
    332   virtual void SetUp() {
    333     printf("(expecting 3 failures)\n");
    334     FAIL() << "Expected failure #1, in SetUp().";
    335   }
    336 
    337   virtual void TearDown() {
    338     FAIL() << "Expected failure #2, in TearDown().";
    339   }
    340  private:
    341   void Deinit() {
    342     FAIL() << "Expected failure #3, in the test fixture d'tor.";
    343   }
    344 };
    345 
    346 TEST_F(FatalFailureInSetUpTest, FailureInSetUp) {
    347   FAIL() << "UNEXPECTED failure in the test function.  "
    348          << "We should never get here, as SetUp() failed.";
    349 }
    350 
    351 #if GTEST_OS_WINDOWS
    352 
    353 // This group of tests verifies that Google Test handles SEH and C++
    354 // exceptions correctly.
    355 
    356 // A function that throws an SEH exception.
    357 static void ThrowSEH() {
    358   int* p = NULL;
    359   *p = 0;  // Raises an access violation.
    360 }
    361 
    362 // Tests exceptions thrown in the test fixture constructor.
    363 class ExceptionInFixtureCtorTest : public testing::Test {
    364  protected:
    365   ExceptionInFixtureCtorTest() {
    366     printf("(expecting a failure on thrown exception "
    367            "in the test fixture's constructor)\n");
    368 
    369     ThrowSEH();
    370   }
    371 
    372   virtual ~ExceptionInFixtureCtorTest() {
    373     Deinit();
    374   }
    375 
    376   virtual void SetUp() {
    377     FAIL() << "UNEXPECTED failure in SetUp().  "
    378            << "We should never get here, as the test fixture c'tor threw.";
    379   }
    380 
    381   virtual void TearDown() {
    382     FAIL() << "UNEXPECTED failure in TearDown().  "
    383            << "We should never get here, as the test fixture c'tor threw.";
    384   }
    385  private:
    386   void Deinit() {
    387     FAIL() << "UNEXPECTED failure in the d'tor.  "
    388            << "We should never get here, as the test fixture c'tor threw.";
    389   }
    390 };
    391 
    392 TEST_F(ExceptionInFixtureCtorTest, ExceptionInFixtureCtor) {
    393   FAIL() << "UNEXPECTED failure in the test function.  "
    394          << "We should never get here, as the test fixture c'tor threw.";
    395 }
    396 
    397 // Tests exceptions thrown in SetUp().
    398 class ExceptionInSetUpTest : public testing::Test {
    399  protected:
    400   virtual ~ExceptionInSetUpTest() {
    401     Deinit();
    402   }
    403 
    404   virtual void SetUp() {
    405     printf("(expecting 3 failures)\n");
    406 
    407     ThrowSEH();
    408   }
    409 
    410   virtual void TearDown() {
    411     FAIL() << "Expected failure #2, in TearDown().";
    412   }
    413  private:
    414   void Deinit() {
    415     FAIL() << "Expected failure #3, in the test fixture d'tor.";
    416   }
    417 };
    418 
    419 TEST_F(ExceptionInSetUpTest, ExceptionInSetUp) {
    420   FAIL() << "UNEXPECTED failure in the test function.  "
    421          << "We should never get here, as SetUp() threw.";
    422 }
    423 
    424 // Tests that TearDown() and the test fixture d'tor are always called,
    425 // even when the test function throws an exception.
    426 class ExceptionInTestFunctionTest : public testing::Test {
    427  protected:
    428   virtual ~ExceptionInTestFunctionTest() {
    429     Deinit();
    430   }
    431 
    432   virtual void TearDown() {
    433     FAIL() << "Expected failure #2, in TearDown().";
    434   }
    435  private:
    436   void Deinit() {
    437     FAIL() << "Expected failure #3, in the test fixture d'tor.";
    438   }
    439 };
    440 
    441 // Tests that the test fixture d'tor is always called, even when the
    442 // test function throws an SEH exception.
    443 TEST_F(ExceptionInTestFunctionTest, SEH) {
    444   printf("(expecting 3 failures)\n");
    445 
    446   ThrowSEH();
    447 }
    448 
    449 #if GTEST_HAS_EXCEPTIONS
    450 
    451 // Tests that the test fixture d'tor is always called, even when the
    452 // test function throws a C++ exception.  We do this only when
    453 // GTEST_HAS_EXCEPTIONS is non-zero, i.e. C++ exceptions are enabled.
    454 TEST_F(ExceptionInTestFunctionTest, CppException) {
    455   throw 1;
    456 }
    457 
    458 // Tests exceptions thrown in TearDown().
    459 class ExceptionInTearDownTest : public testing::Test {
    460  protected:
    461   virtual ~ExceptionInTearDownTest() {
    462     Deinit();
    463   }
    464 
    465   virtual void TearDown() {
    466     throw 1;
    467   }
    468  private:
    469   void Deinit() {
    470     FAIL() << "Expected failure #2, in the test fixture d'tor.";
    471   }
    472 };
    473 
    474 TEST_F(ExceptionInTearDownTest, ExceptionInTearDown) {
    475   printf("(expecting 2 failures)\n");
    476 }
    477 
    478 #endif  // GTEST_HAS_EXCEPTIONS
    479 
    480 #endif  // GTEST_OS_WINDOWS
    481 
    482 // The MixedUpTestCaseTest test case verifies that Google Test will fail a
    483 // test if it uses a different fixture class than what other tests in
    484 // the same test case use.  It deliberately contains two fixture
    485 // classes with the same name but defined in different namespaces.
    486 
    487 // The MixedUpTestCaseWithSameTestNameTest test case verifies that
    488 // when the user defines two tests with the same test case name AND
    489 // same test name (but in different namespaces), the second test will
    490 // fail.
    491 
    492 namespace foo {
    493 
    494 class MixedUpTestCaseTest : public testing::Test {
    495 };
    496 
    497 TEST_F(MixedUpTestCaseTest, FirstTestFromNamespaceFoo) {}
    498 TEST_F(MixedUpTestCaseTest, SecondTestFromNamespaceFoo) {}
    499 
    500 class MixedUpTestCaseWithSameTestNameTest : public testing::Test {
    501 };
    502 
    503 TEST_F(MixedUpTestCaseWithSameTestNameTest,
    504        TheSecondTestWithThisNameShouldFail) {}
    505 
    506 }  // namespace foo
    507 
    508 namespace bar {
    509 
    510 class MixedUpTestCaseTest : public testing::Test {
    511 };
    512 
    513 // The following two tests are expected to fail.  We rely on the
    514 // golden file to check that Google Test generates the right error message.
    515 TEST_F(MixedUpTestCaseTest, ThisShouldFail) {}
    516 TEST_F(MixedUpTestCaseTest, ThisShouldFailToo) {}
    517 
    518 class MixedUpTestCaseWithSameTestNameTest : public testing::Test {
    519 };
    520 
    521 // Expected to fail.  We rely on the golden file to check that Google Test
    522 // generates the right error message.
    523 TEST_F(MixedUpTestCaseWithSameTestNameTest,
    524        TheSecondTestWithThisNameShouldFail) {}
    525 
    526 }  // namespace bar
    527 
    528 // The following two test cases verify that Google Test catches the user
    529 // error of mixing TEST and TEST_F in the same test case.  The first
    530 // test case checks the scenario where TEST_F appears before TEST, and
    531 // the second one checks where TEST appears before TEST_F.
    532 
    533 class TEST_F_before_TEST_in_same_test_case : public testing::Test {
    534 };
    535 
    536 TEST_F(TEST_F_before_TEST_in_same_test_case, DefinedUsingTEST_F) {}
    537 
    538 // Expected to fail.  We rely on the golden file to check that Google Test
    539 // generates the right error message.
    540 TEST(TEST_F_before_TEST_in_same_test_case, DefinedUsingTESTAndShouldFail) {}
    541 
    542 class TEST_before_TEST_F_in_same_test_case : public testing::Test {
    543 };
    544 
    545 TEST(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST) {}
    546 
    547 // Expected to fail.  We rely on the golden file to check that Google Test
    548 // generates the right error message.
    549 TEST_F(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST_FAndShouldFail) {
    550 }
    551 
    552 // Used for testing EXPECT_NONFATAL_FAILURE() and EXPECT_FATAL_FAILURE().
    553 int global_integer = 0;
    554 
    555 // Tests that EXPECT_NONFATAL_FAILURE() can reference global variables.
    556 TEST(ExpectNonfatalFailureTest, CanReferenceGlobalVariables) {
    557   global_integer = 0;
    558   EXPECT_NONFATAL_FAILURE({
    559     EXPECT_EQ(1, global_integer) << "Expected non-fatal failure.";
    560   }, "Expected non-fatal failure.");
    561 }
    562 
    563 // Tests that EXPECT_NONFATAL_FAILURE() can reference local variables
    564 // (static or not).
    565 TEST(ExpectNonfatalFailureTest, CanReferenceLocalVariables) {
    566   int m = 0;
    567   static int n;
    568   n = 1;
    569   EXPECT_NONFATAL_FAILURE({
    570     EXPECT_EQ(m, n) << "Expected non-fatal failure.";
    571   }, "Expected non-fatal failure.");
    572 }
    573 
    574 // Tests that EXPECT_NONFATAL_FAILURE() succeeds when there is exactly
    575 // one non-fatal failure and no fatal failure.
    576 TEST(ExpectNonfatalFailureTest, SucceedsWhenThereIsOneNonfatalFailure) {
    577   EXPECT_NONFATAL_FAILURE({
    578     ADD_FAILURE() << "Expected non-fatal failure.";
    579   }, "Expected non-fatal failure.");
    580 }
    581 
    582 // Tests that EXPECT_NONFATAL_FAILURE() fails when there is no
    583 // non-fatal failure.
    584 TEST(ExpectNonfatalFailureTest, FailsWhenThereIsNoNonfatalFailure) {
    585   printf("(expecting a failure)\n");
    586   EXPECT_NONFATAL_FAILURE({
    587   }, "");
    588 }
    589 
    590 // Tests that EXPECT_NONFATAL_FAILURE() fails when there are two
    591 // non-fatal failures.
    592 TEST(ExpectNonfatalFailureTest, FailsWhenThereAreTwoNonfatalFailures) {
    593   printf("(expecting a failure)\n");
    594   EXPECT_NONFATAL_FAILURE({
    595     ADD_FAILURE() << "Expected non-fatal failure 1.";
    596     ADD_FAILURE() << "Expected non-fatal failure 2.";
    597   }, "");
    598 }
    599 
    600 // Tests that EXPECT_NONFATAL_FAILURE() fails when there is one fatal
    601 // failure.
    602 TEST(ExpectNonfatalFailureTest, FailsWhenThereIsOneFatalFailure) {
    603   printf("(expecting a failure)\n");
    604   EXPECT_NONFATAL_FAILURE({
    605     FAIL() << "Expected fatal failure.";
    606   }, "");
    607 }
    608 
    609 // Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
    610 // tested returns.
    611 TEST(ExpectNonfatalFailureTest, FailsWhenStatementReturns) {
    612   printf("(expecting a failure)\n");
    613   EXPECT_NONFATAL_FAILURE({
    614     return;
    615   }, "");
    616 }
    617 
    618 #if GTEST_HAS_EXCEPTIONS
    619 
    620 // Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
    621 // tested throws.
    622 TEST(ExpectNonfatalFailureTest, FailsWhenStatementThrows) {
    623   printf("(expecting a failure)\n");
    624   try {
    625     EXPECT_NONFATAL_FAILURE({
    626       throw 0;
    627     }, "");
    628   } catch(int) {  // NOLINT
    629   }
    630 }
    631 
    632 #endif  // GTEST_HAS_EXCEPTIONS
    633 
    634 // Tests that EXPECT_FATAL_FAILURE() can reference global variables.
    635 TEST(ExpectFatalFailureTest, CanReferenceGlobalVariables) {
    636   global_integer = 0;
    637   EXPECT_FATAL_FAILURE({
    638     ASSERT_EQ(1, global_integer) << "Expected fatal failure.";
    639   }, "Expected fatal failure.");
    640 }
    641 
    642 // Tests that EXPECT_FATAL_FAILURE() can reference local static
    643 // variables.
    644 TEST(ExpectFatalFailureTest, CanReferenceLocalStaticVariables) {
    645   static int n;
    646   n = 1;
    647   EXPECT_FATAL_FAILURE({
    648     ASSERT_EQ(0, n) << "Expected fatal failure.";
    649   }, "Expected fatal failure.");
    650 }
    651 
    652 // Tests that EXPECT_FATAL_FAILURE() succeeds when there is exactly
    653 // one fatal failure and no non-fatal failure.
    654 TEST(ExpectFatalFailureTest, SucceedsWhenThereIsOneFatalFailure) {
    655   EXPECT_FATAL_FAILURE({
    656     FAIL() << "Expected fatal failure.";
    657   }, "Expected fatal failure.");
    658 }
    659 
    660 // Tests that EXPECT_FATAL_FAILURE() fails when there is no fatal
    661 // failure.
    662 TEST(ExpectFatalFailureTest, FailsWhenThereIsNoFatalFailure) {
    663   printf("(expecting a failure)\n");
    664   EXPECT_FATAL_FAILURE({
    665   }, "");
    666 }
    667 
    668 // A helper for generating a fatal failure.
    669 void FatalFailure() {
    670   FAIL() << "Expected fatal failure.";
    671 }
    672 
    673 // Tests that EXPECT_FATAL_FAILURE() fails when there are two
    674 // fatal failures.
    675 TEST(ExpectFatalFailureTest, FailsWhenThereAreTwoFatalFailures) {
    676   printf("(expecting a failure)\n");
    677   EXPECT_FATAL_FAILURE({
    678     FatalFailure();
    679     FatalFailure();
    680   }, "");
    681 }
    682 
    683 // Tests that EXPECT_FATAL_FAILURE() fails when there is one non-fatal
    684 // failure.
    685 TEST(ExpectFatalFailureTest, FailsWhenThereIsOneNonfatalFailure) {
    686   printf("(expecting a failure)\n");
    687   EXPECT_FATAL_FAILURE({
    688     ADD_FAILURE() << "Expected non-fatal failure.";
    689   }, "");
    690 }
    691 
    692 // Tests that EXPECT_FATAL_FAILURE() fails when the statement being
    693 // tested returns.
    694 TEST(ExpectFatalFailureTest, FailsWhenStatementReturns) {
    695   printf("(expecting a failure)\n");
    696   EXPECT_FATAL_FAILURE({
    697     return;
    698   }, "");
    699 }
    700 
    701 #if GTEST_HAS_EXCEPTIONS
    702 
    703 // Tests that EXPECT_FATAL_FAILURE() fails when the statement being
    704 // tested throws.
    705 TEST(ExpectFatalFailureTest, FailsWhenStatementThrows) {
    706   printf("(expecting a failure)\n");
    707   try {
    708     EXPECT_FATAL_FAILURE({
    709       throw 0;
    710     }, "");
    711   } catch(int) {  // NOLINT
    712   }
    713 }
    714 
    715 #endif  // GTEST_HAS_EXCEPTIONS
    716 
    717 // This #ifdef block tests the output of typed tests.
    718 #if GTEST_HAS_TYPED_TEST
    719 
    720 template <typename T>
    721 class TypedTest : public testing::Test {
    722 };
    723 
    724 TYPED_TEST_CASE(TypedTest, testing::Types<int>);
    725 
    726 TYPED_TEST(TypedTest, Success) {
    727   EXPECT_EQ(0, TypeParam());
    728 }
    729 
    730 TYPED_TEST(TypedTest, Failure) {
    731   EXPECT_EQ(1, TypeParam()) << "Expected failure";
    732 }
    733 
    734 #endif  // GTEST_HAS_TYPED_TEST
    735 
    736 // This #ifdef block tests the output of type-parameterized tests.
    737 #if GTEST_HAS_TYPED_TEST_P
    738 
    739 template <typename T>
    740 class TypedTestP : public testing::Test {
    741 };
    742 
    743 TYPED_TEST_CASE_P(TypedTestP);
    744 
    745 TYPED_TEST_P(TypedTestP, Success) {
    746   EXPECT_EQ(0U, TypeParam());
    747 }
    748 
    749 TYPED_TEST_P(TypedTestP, Failure) {
    750   EXPECT_EQ(1U, TypeParam()) << "Expected failure";
    751 }
    752 
    753 REGISTER_TYPED_TEST_CASE_P(TypedTestP, Success, Failure);
    754 
    755 typedef testing::Types<unsigned char, unsigned int> UnsignedTypes;
    756 INSTANTIATE_TYPED_TEST_CASE_P(Unsigned, TypedTestP, UnsignedTypes);
    757 
    758 #endif  // GTEST_HAS_TYPED_TEST_P
    759 
    760 #if GTEST_HAS_DEATH_TEST
    761 
    762 // We rely on the golden file to verify that tests whose test case
    763 // name ends with DeathTest are run first.
    764 
    765 TEST(ADeathTest, ShouldRunFirst) {
    766 }
    767 
    768 #if GTEST_HAS_TYPED_TEST
    769 
    770 // We rely on the golden file to verify that typed tests whose test
    771 // case name ends with DeathTest are run first.
    772 
    773 template <typename T>
    774 class ATypedDeathTest : public testing::Test {
    775 };
    776 
    777 typedef testing::Types<int, double> NumericTypes;
    778 TYPED_TEST_CASE(ATypedDeathTest, NumericTypes);
    779 
    780 TYPED_TEST(ATypedDeathTest, ShouldRunFirst) {
    781 }
    782 
    783 #endif  // GTEST_HAS_TYPED_TEST
    784 
    785 #if GTEST_HAS_TYPED_TEST_P
    786 
    787 
    788 // We rely on the golden file to verify that type-parameterized tests
    789 // whose test case name ends with DeathTest are run first.
    790 
    791 template <typename T>
    792 class ATypeParamDeathTest : public testing::Test {
    793 };
    794 
    795 TYPED_TEST_CASE_P(ATypeParamDeathTest);
    796 
    797 TYPED_TEST_P(ATypeParamDeathTest, ShouldRunFirst) {
    798 }
    799 
    800 REGISTER_TYPED_TEST_CASE_P(ATypeParamDeathTest, ShouldRunFirst);
    801 
    802 INSTANTIATE_TYPED_TEST_CASE_P(My, ATypeParamDeathTest, NumericTypes);
    803 
    804 #endif  // GTEST_HAS_TYPED_TEST_P
    805 
    806 #endif  // GTEST_HAS_DEATH_TEST
    807 
    808 // Tests various failure conditions of
    809 // EXPECT_{,NON}FATAL_FAILURE{,_ON_ALL_THREADS}.
    810 class ExpectFailureTest : public testing::Test {
    811  public:  // Must be public and not protected due to a bug in g++ 3.4.2.
    812   enum FailureMode {
    813     FATAL_FAILURE,
    814     NONFATAL_FAILURE
    815   };
    816   static void AddFailure(FailureMode failure) {
    817     if (failure == FATAL_FAILURE) {
    818       FAIL() << "Expected fatal failure.";
    819     } else {
    820       ADD_FAILURE() << "Expected non-fatal failure.";
    821     }
    822   }
    823 };
    824 
    825 TEST_F(ExpectFailureTest, ExpectFatalFailure) {
    826   // Expected fatal failure, but succeeds.
    827   printf("(expecting 1 failure)\n");
    828   EXPECT_FATAL_FAILURE(SUCCEED(), "Expected fatal failure.");
    829   // Expected fatal failure, but got a non-fatal failure.
    830   printf("(expecting 1 failure)\n");
    831   EXPECT_FATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Expected non-fatal "
    832                        "failure.");
    833   // Wrong message.
    834   printf("(expecting 1 failure)\n");
    835   EXPECT_FATAL_FAILURE(AddFailure(FATAL_FAILURE), "Some other fatal failure "
    836                        "expected.");
    837 }
    838 
    839 TEST_F(ExpectFailureTest, ExpectNonFatalFailure) {
    840   // Expected non-fatal failure, but succeeds.
    841   printf("(expecting 1 failure)\n");
    842   EXPECT_NONFATAL_FAILURE(SUCCEED(), "Expected non-fatal failure.");
    843   // Expected non-fatal failure, but got a fatal failure.
    844   printf("(expecting 1 failure)\n");
    845   EXPECT_NONFATAL_FAILURE(AddFailure(FATAL_FAILURE), "Expected fatal failure.");
    846   // Wrong message.
    847   printf("(expecting 1 failure)\n");
    848   EXPECT_NONFATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Some other non-fatal "
    849                           "failure.");
    850 }
    851 
    852 #if GTEST_IS_THREADSAFE && GTEST_HAS_PTHREAD
    853 
    854 class ExpectFailureWithThreadsTest : public ExpectFailureTest {
    855  protected:
    856   static void AddFailureInOtherThread(FailureMode failure) {
    857     pthread_t tid;
    858     pthread_create(&tid,
    859                    NULL,
    860                    ExpectFailureWithThreadsTest::FailureThread,
    861                    &failure);
    862     pthread_join(tid, NULL);
    863   }
    864  private:
    865   static void* FailureThread(void* attr) {
    866     FailureMode* failure = static_cast<FailureMode*>(attr);
    867     AddFailure(*failure);
    868     return NULL;
    869   }
    870 };
    871 
    872 TEST_F(ExpectFailureWithThreadsTest, ExpectFatalFailure) {
    873   // We only intercept the current thread.
    874   printf("(expecting 2 failures)\n");
    875   EXPECT_FATAL_FAILURE(AddFailureInOtherThread(FATAL_FAILURE),
    876                        "Expected fatal failure.");
    877 }
    878 
    879 TEST_F(ExpectFailureWithThreadsTest, ExpectNonFatalFailure) {
    880   // We only intercept the current thread.
    881   printf("(expecting 2 failures)\n");
    882   EXPECT_NONFATAL_FAILURE(AddFailureInOtherThread(NONFATAL_FAILURE),
    883                           "Expected non-fatal failure.");
    884 }
    885 
    886 typedef ExpectFailureWithThreadsTest ScopedFakeTestPartResultReporterTest;
    887 
    888 // Tests that the ScopedFakeTestPartResultReporter only catches failures from
    889 // the current thread if it is instantiated with INTERCEPT_ONLY_CURRENT_THREAD.
    890 TEST_F(ScopedFakeTestPartResultReporterTest, InterceptOnlyCurrentThread) {
    891   printf("(expecting 2 failures)\n");
    892   TestPartResultArray results;
    893   {
    894     ScopedFakeTestPartResultReporter reporter(
    895         ScopedFakeTestPartResultReporter::INTERCEPT_ONLY_CURRENT_THREAD,
    896         &results);
    897     AddFailureInOtherThread(FATAL_FAILURE);
    898     AddFailureInOtherThread(NONFATAL_FAILURE);
    899   }
    900   // The two failures should not have been intercepted.
    901   EXPECT_EQ(0, results.size()) << "This shouldn't fail.";
    902 }
    903 
    904 #endif  // GTEST_IS_THREADSAFE && GTEST_HAS_PTHREAD
    905 
    906 TEST_F(ExpectFailureTest, ExpectFatalFailureOnAllThreads) {
    907   // Expected fatal failure, but succeeds.
    908   printf("(expecting 1 failure)\n");
    909   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected fatal failure.");
    910   // Expected fatal failure, but got a non-fatal failure.
    911   printf("(expecting 1 failure)\n");
    912   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
    913                                       "Expected non-fatal failure.");
    914   // Wrong message.
    915   printf("(expecting 1 failure)\n");
    916   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
    917                                       "Some other fatal failure expected.");
    918 }
    919 
    920 TEST_F(ExpectFailureTest, ExpectNonFatalFailureOnAllThreads) {
    921   // Expected non-fatal failure, but succeeds.
    922   printf("(expecting 1 failure)\n");
    923   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected non-fatal "
    924                                          "failure.");
    925   // Expected non-fatal failure, but got a fatal failure.
    926   printf("(expecting 1 failure)\n");
    927   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
    928                                          "Expected fatal failure.");
    929   // Wrong message.
    930   printf("(expecting 1 failure)\n");
    931   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
    932                                          "Some other non-fatal failure.");
    933 }
    934 
    935 
    936 // Two test environments for testing testing::AddGlobalTestEnvironment().
    937 
    938 class FooEnvironment : public testing::Environment {
    939  public:
    940   virtual void SetUp() {
    941     printf("%s", "FooEnvironment::SetUp() called.\n");
    942   }
    943 
    944   virtual void TearDown() {
    945     printf("%s", "FooEnvironment::TearDown() called.\n");
    946     FAIL() << "Expected fatal failure.";
    947   }
    948 };
    949 
    950 class BarEnvironment : public testing::Environment {
    951  public:
    952   virtual void SetUp() {
    953     printf("%s", "BarEnvironment::SetUp() called.\n");
    954   }
    955 
    956   virtual void TearDown() {
    957     printf("%s", "BarEnvironment::TearDown() called.\n");
    958     ADD_FAILURE() << "Expected non-fatal failure.";
    959   }
    960 };
    961 
    962 GTEST_DEFINE_bool_(internal_skip_environment_and_ad_hoc_tests, false,
    963                    "This flag causes the program to skip test environment "
    964                    "tests and ad hoc tests.");
    965 
    966 // The main function.
    967 //
    968 // The idea is to use Google Test to run all the tests we have defined (some
    969 // of them are intended to fail), and then compare the test results
    970 // with the "golden" file.
    971 int main(int argc, char **argv) {
    972   testing::GTEST_FLAG(print_time) = false;
    973 
    974   // We just run the tests, knowing some of them are intended to fail.
    975   // We will use a separate Python script to compare the output of
    976   // this program with the golden file.
    977 
    978   // It's hard to test InitGoogleTest() directly, as it has many
    979   // global side effects.  The following line serves as a sanity test
    980   // for it.
    981   testing::InitGoogleTest(&argc, argv);
    982   if (argc >= 2 &&
    983       String(argv[1]) == "--gtest_internal_skip_environment_and_ad_hoc_tests")
    984     GTEST_FLAG(internal_skip_environment_and_ad_hoc_tests) = true;
    985 
    986 #if GTEST_HAS_DEATH_TEST
    987   if (testing::internal::GTEST_FLAG(internal_run_death_test) != "") {
    988     // Skip the usual output capturing if we're running as the child
    989     // process of an threadsafe-style death test.
    990 #if GTEST_OS_WINDOWS
    991     posix::FReopen("nul:", "w", stdout);
    992 #else
    993     posix::FReopen("/dev/null", "w", stdout);
    994 #endif  // GTEST_OS_WINDOWS
    995     return RUN_ALL_TESTS();
    996   }
    997 #endif  // GTEST_HAS_DEATH_TEST
    998 
    999   if (GTEST_FLAG(internal_skip_environment_and_ad_hoc_tests))
   1000     return RUN_ALL_TESTS();
   1001 
   1002   // Registers two global test environments.
   1003   // The golden file verifies that they are set up in the order they
   1004   // are registered, and torn down in the reverse order.
   1005   testing::AddGlobalTestEnvironment(new FooEnvironment);
   1006   testing::AddGlobalTestEnvironment(new BarEnvironment);
   1007 
   1008   return RunAllTests();
   1009 }
   1010