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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 // The purpose of this file is to generate Google Test output under
31 // various conditions.  The output will then be verified by
32 // gtest_output_test.py to ensure that Google Test generates the
33 // desired messages.  Therefore, most tests in this file are MEANT TO
34 // FAIL.
35 //
36 // Author: wan@google.com (Zhanyong Wan)
37 
38 #include "gtest/gtest-spi.h"
39 #include "gtest/gtest.h"
40 
41 // Indicates that this translation unit is part of Google Test's
42 // implementation.  It must come before gtest-internal-inl.h is
43 // included, or there will be a compiler error.  This trick is to
44 // prevent a user from accidentally including gtest-internal-inl.h in
45 // his code.
46 #define GTEST_IMPLEMENTATION_ 1
47 #include "src/gtest-internal-inl.h"
48 #undef GTEST_IMPLEMENTATION_
49 
50 #include <stdlib.h>
51 
52 #if GTEST_IS_THREADSAFE
53 using testing::ScopedFakeTestPartResultReporter;
54 using testing::TestPartResultArray;
55 
56 using testing::internal::Notification;
57 using testing::internal::ThreadWithParam;
58 #endif
59 
60 namespace posix = ::testing::internal::posix;
61 using testing::internal::scoped_ptr;
62 
63 // Tests catching fatal failures.
64 
65 // A subroutine used by the following test.
TestEq1(int x)66 void TestEq1(int x) {
67   ASSERT_EQ(1, x);
68 }
69 
70 // This function calls a test subroutine, catches the fatal failure it
71 // generates, and then returns early.
TryTestSubroutine()72 void TryTestSubroutine() {
73   // Calls a subrountine that yields a fatal failure.
74   TestEq1(2);
75 
76   // Catches the fatal failure and aborts the test.
77   //
78   // The testing::Test:: prefix is necessary when calling
79   // HasFatalFailure() outside of a TEST, TEST_F, or test fixture.
80   if (testing::Test::HasFatalFailure()) return;
81 
82   // If we get here, something is wrong.
83   FAIL() << "This should never be reached.";
84 }
85 
TEST(PassingTest,PassingTest1)86 TEST(PassingTest, PassingTest1) {
87 }
88 
TEST(PassingTest,PassingTest2)89 TEST(PassingTest, PassingTest2) {
90 }
91 
92 // Tests that parameters of failing parameterized tests are printed in the
93 // failing test summary.
94 class FailingParamTest : public testing::TestWithParam<int> {};
95 
TEST_P(FailingParamTest,Fails)96 TEST_P(FailingParamTest, Fails) {
97   EXPECT_EQ(1, GetParam());
98 }
99 
100 // This generates a test which will fail. Google Test is expected to print
101 // its parameter when it outputs the list of all failed tests.
102 INSTANTIATE_TEST_CASE_P(PrintingFailingParams,
103                         FailingParamTest,
104                         testing::Values(2));
105 
106 static const char kGoldenString[] = "\"Line\0 1\"\nLine 2";
107 
TEST(NonfatalFailureTest,EscapesStringOperands)108 TEST(NonfatalFailureTest, EscapesStringOperands) {
109   std::string actual = "actual \"string\"";
110   EXPECT_EQ(kGoldenString, actual);
111 
112   const char* golden = kGoldenString;
113   EXPECT_EQ(golden, actual);
114 }
115 
116 // Tests catching a fatal failure in a subroutine.
TEST(FatalFailureTest,FatalFailureInSubroutine)117 TEST(FatalFailureTest, FatalFailureInSubroutine) {
118   printf("(expecting a failure that x should be 1)\n");
119 
120   TryTestSubroutine();
121 }
122 
123 // Tests catching a fatal failure in a nested subroutine.
TEST(FatalFailureTest,FatalFailureInNestedSubroutine)124 TEST(FatalFailureTest, FatalFailureInNestedSubroutine) {
125   printf("(expecting a failure that x should be 1)\n");
126 
127   // Calls a subrountine that yields a fatal failure.
128   TryTestSubroutine();
129 
130   // Catches the fatal failure and aborts the test.
131   //
132   // When calling HasFatalFailure() inside a TEST, TEST_F, or test
133   // fixture, the testing::Test:: prefix is not needed.
134   if (HasFatalFailure()) return;
135 
136   // If we get here, something is wrong.
137   FAIL() << "This should never be reached.";
138 }
139 
140 // Tests HasFatalFailure() after a failed EXPECT check.
TEST(FatalFailureTest,NonfatalFailureInSubroutine)141 TEST(FatalFailureTest, NonfatalFailureInSubroutine) {
142   printf("(expecting a failure on false)\n");
143   EXPECT_TRUE(false);  // Generates a nonfatal failure
144   ASSERT_FALSE(HasFatalFailure());  // This should succeed.
145 }
146 
147 // Tests interleaving user logging and Google Test assertions.
TEST(LoggingTest,InterleavingLoggingAndAssertions)148 TEST(LoggingTest, InterleavingLoggingAndAssertions) {
149   static const int a[4] = {
150     3, 9, 2, 6
151   };
152 
153   printf("(expecting 2 failures on (3) >= (a[i]))\n");
154   for (int i = 0; i < static_cast<int>(sizeof(a)/sizeof(*a)); i++) {
155     printf("i == %d\n", i);
156     EXPECT_GE(3, a[i]);
157   }
158 }
159 
160 // Tests the SCOPED_TRACE macro.
161 
162 // A helper function for testing SCOPED_TRACE.
SubWithoutTrace(int n)163 void SubWithoutTrace(int n) {
164   EXPECT_EQ(1, n);
165   ASSERT_EQ(2, n);
166 }
167 
168 // Another helper function for testing SCOPED_TRACE.
SubWithTrace(int n)169 void SubWithTrace(int n) {
170   SCOPED_TRACE(testing::Message() << "n = " << n);
171 
172   SubWithoutTrace(n);
173 }
174 
175 // Tests that SCOPED_TRACE() obeys lexical scopes.
TEST(SCOPED_TRACETest,ObeysScopes)176 TEST(SCOPED_TRACETest, ObeysScopes) {
177   printf("(expected to fail)\n");
178 
179   // There should be no trace before SCOPED_TRACE() is invoked.
180   ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";
181 
182   {
183     SCOPED_TRACE("Expected trace");
184     // After SCOPED_TRACE(), a failure in the current scope should contain
185     // the trace.
186     ADD_FAILURE() << "This failure is expected, and should have a trace.";
187   }
188 
189   // Once the control leaves the scope of the SCOPED_TRACE(), there
190   // should be no trace again.
191   ADD_FAILURE() << "This failure is expected, and shouldn't have a trace.";
192 }
193 
194 // Tests that SCOPED_TRACE works inside a loop.
TEST(SCOPED_TRACETest,WorksInLoop)195 TEST(SCOPED_TRACETest, WorksInLoop) {
196   printf("(expected to fail)\n");
197 
198   for (int i = 1; i <= 2; i++) {
199     SCOPED_TRACE(testing::Message() << "i = " << i);
200 
201     SubWithoutTrace(i);
202   }
203 }
204 
205 // Tests that SCOPED_TRACE works in a subroutine.
TEST(SCOPED_TRACETest,WorksInSubroutine)206 TEST(SCOPED_TRACETest, WorksInSubroutine) {
207   printf("(expected to fail)\n");
208 
209   SubWithTrace(1);
210   SubWithTrace(2);
211 }
212 
213 // Tests that SCOPED_TRACE can be nested.
TEST(SCOPED_TRACETest,CanBeNested)214 TEST(SCOPED_TRACETest, CanBeNested) {
215   printf("(expected to fail)\n");
216 
217   SCOPED_TRACE("");  // A trace without a message.
218 
219   SubWithTrace(2);
220 }
221 
222 // Tests that multiple SCOPED_TRACEs can be used in the same scope.
TEST(SCOPED_TRACETest,CanBeRepeated)223 TEST(SCOPED_TRACETest, CanBeRepeated) {
224   printf("(expected to fail)\n");
225 
226   SCOPED_TRACE("A");
227   ADD_FAILURE()
228       << "This failure is expected, and should contain trace point A.";
229 
230   SCOPED_TRACE("B");
231   ADD_FAILURE()
232       << "This failure is expected, and should contain trace point A and B.";
233 
234   {
235     SCOPED_TRACE("C");
236     ADD_FAILURE() << "This failure is expected, and should "
237                   << "contain trace point A, B, and C.";
238   }
239 
240   SCOPED_TRACE("D");
241   ADD_FAILURE() << "This failure is expected, and should "
242                 << "contain trace point A, B, and D.";
243 }
244 
245 #if GTEST_IS_THREADSAFE
246 // Tests that SCOPED_TRACE()s can be used concurrently from multiple
247 // threads.  Namely, an assertion should be affected by
248 // SCOPED_TRACE()s in its own thread only.
249 
250 // Here's the sequence of actions that happen in the test:
251 //
252 //   Thread A (main)                | Thread B (spawned)
253 //   ===============================|================================
254 //   spawns thread B                |
255 //   -------------------------------+--------------------------------
256 //   waits for n1                   | SCOPED_TRACE("Trace B");
257 //                                  | generates failure #1
258 //                                  | notifies n1
259 //   -------------------------------+--------------------------------
260 //   SCOPED_TRACE("Trace A");       | waits for n2
261 //   generates failure #2           |
262 //   notifies n2                    |
263 //   -------------------------------|--------------------------------
264 //   waits for n3                   | generates failure #3
265 //                                  | trace B dies
266 //                                  | generates failure #4
267 //                                  | notifies n3
268 //   -------------------------------|--------------------------------
269 //   generates failure #5           | finishes
270 //   trace A dies                   |
271 //   generates failure #6           |
272 //   -------------------------------|--------------------------------
273 //   waits for thread B to finish   |
274 
275 struct CheckPoints {
276   Notification n1;
277   Notification n2;
278   Notification n3;
279 };
280 
ThreadWithScopedTrace(CheckPoints * check_points)281 static void ThreadWithScopedTrace(CheckPoints* check_points) {
282   {
283     SCOPED_TRACE("Trace B");
284     ADD_FAILURE()
285         << "Expected failure #1 (in thread B, only trace B alive).";
286     check_points->n1.Notify();
287     check_points->n2.WaitForNotification();
288 
289     ADD_FAILURE()
290         << "Expected failure #3 (in thread B, trace A & B both alive).";
291   }  // Trace B dies here.
292   ADD_FAILURE()
293       << "Expected failure #4 (in thread B, only trace A alive).";
294   check_points->n3.Notify();
295 }
296 
TEST(SCOPED_TRACETest,WorksConcurrently)297 TEST(SCOPED_TRACETest, WorksConcurrently) {
298   printf("(expecting 6 failures)\n");
299 
300   CheckPoints check_points;
301   ThreadWithParam<CheckPoints*> thread(&ThreadWithScopedTrace,
302                                        &check_points,
303                                        NULL);
304   check_points.n1.WaitForNotification();
305 
306   {
307     SCOPED_TRACE("Trace A");
308     ADD_FAILURE()
309         << "Expected failure #2 (in thread A, trace A & B both alive).";
310     check_points.n2.Notify();
311     check_points.n3.WaitForNotification();
312 
313     ADD_FAILURE()
314         << "Expected failure #5 (in thread A, only trace A alive).";
315   }  // Trace A dies here.
316   ADD_FAILURE()
317       << "Expected failure #6 (in thread A, no trace alive).";
318   thread.Join();
319 }
320 #endif  // GTEST_IS_THREADSAFE
321 
TEST(DisabledTestsWarningTest,DISABLED_AlsoRunDisabledTestsFlagSuppressesWarning)322 TEST(DisabledTestsWarningTest,
323      DISABLED_AlsoRunDisabledTestsFlagSuppressesWarning) {
324   // This test body is intentionally empty.  Its sole purpose is for
325   // verifying that the --gtest_also_run_disabled_tests flag
326   // suppresses the "YOU HAVE 12 DISABLED TESTS" warning at the end of
327   // the test output.
328 }
329 
330 // Tests using assertions outside of TEST and TEST_F.
331 //
332 // This function creates two failures intentionally.
AdHocTest()333 void AdHocTest() {
334   printf("The non-test part of the code is expected to have 2 failures.\n\n");
335   EXPECT_TRUE(false);
336   EXPECT_EQ(2, 3);
337 }
338 
339 // Runs all TESTs, all TEST_Fs, and the ad hoc test.
RunAllTests()340 int RunAllTests() {
341   AdHocTest();
342   return RUN_ALL_TESTS();
343 }
344 
345 // Tests non-fatal failures in the fixture constructor.
346 class NonFatalFailureInFixtureConstructorTest : public testing::Test {
347  protected:
NonFatalFailureInFixtureConstructorTest()348   NonFatalFailureInFixtureConstructorTest() {
349     printf("(expecting 5 failures)\n");
350     ADD_FAILURE() << "Expected failure #1, in the test fixture c'tor.";
351   }
352 
~NonFatalFailureInFixtureConstructorTest()353   ~NonFatalFailureInFixtureConstructorTest() {
354     ADD_FAILURE() << "Expected failure #5, in the test fixture d'tor.";
355   }
356 
SetUp()357   virtual void SetUp() {
358     ADD_FAILURE() << "Expected failure #2, in SetUp().";
359   }
360 
TearDown()361   virtual void TearDown() {
362     ADD_FAILURE() << "Expected failure #4, in TearDown.";
363   }
364 };
365 
TEST_F(NonFatalFailureInFixtureConstructorTest,FailureInConstructor)366 TEST_F(NonFatalFailureInFixtureConstructorTest, FailureInConstructor) {
367   ADD_FAILURE() << "Expected failure #3, in the test body.";
368 }
369 
370 // Tests fatal failures in the fixture constructor.
371 class FatalFailureInFixtureConstructorTest : public testing::Test {
372  protected:
FatalFailureInFixtureConstructorTest()373   FatalFailureInFixtureConstructorTest() {
374     printf("(expecting 2 failures)\n");
375     Init();
376   }
377 
~FatalFailureInFixtureConstructorTest()378   ~FatalFailureInFixtureConstructorTest() {
379     ADD_FAILURE() << "Expected failure #2, in the test fixture d'tor.";
380   }
381 
SetUp()382   virtual void SetUp() {
383     ADD_FAILURE() << "UNEXPECTED failure in SetUp().  "
384                   << "We should never get here, as the test fixture c'tor "
385                   << "had a fatal failure.";
386   }
387 
TearDown()388   virtual void TearDown() {
389     ADD_FAILURE() << "UNEXPECTED failure in TearDown().  "
390                   << "We should never get here, as the test fixture c'tor "
391                   << "had a fatal failure.";
392   }
393 
394  private:
Init()395   void Init() {
396     FAIL() << "Expected failure #1, in the test fixture c'tor.";
397   }
398 };
399 
TEST_F(FatalFailureInFixtureConstructorTest,FailureInConstructor)400 TEST_F(FatalFailureInFixtureConstructorTest, FailureInConstructor) {
401   ADD_FAILURE() << "UNEXPECTED failure in the test body.  "
402                 << "We should never get here, as the test fixture c'tor "
403                 << "had a fatal failure.";
404 }
405 
406 // Tests non-fatal failures in SetUp().
407 class NonFatalFailureInSetUpTest : public testing::Test {
408  protected:
~NonFatalFailureInSetUpTest()409   virtual ~NonFatalFailureInSetUpTest() {
410     Deinit();
411   }
412 
SetUp()413   virtual void SetUp() {
414     printf("(expecting 4 failures)\n");
415     ADD_FAILURE() << "Expected failure #1, in SetUp().";
416   }
417 
TearDown()418   virtual void TearDown() {
419     FAIL() << "Expected failure #3, in TearDown().";
420   }
421  private:
Deinit()422   void Deinit() {
423     FAIL() << "Expected failure #4, in the test fixture d'tor.";
424   }
425 };
426 
TEST_F(NonFatalFailureInSetUpTest,FailureInSetUp)427 TEST_F(NonFatalFailureInSetUpTest, FailureInSetUp) {
428   FAIL() << "Expected failure #2, in the test function.";
429 }
430 
431 // Tests fatal failures in SetUp().
432 class FatalFailureInSetUpTest : public testing::Test {
433  protected:
~FatalFailureInSetUpTest()434   virtual ~FatalFailureInSetUpTest() {
435     Deinit();
436   }
437 
SetUp()438   virtual void SetUp() {
439     printf("(expecting 3 failures)\n");
440     FAIL() << "Expected failure #1, in SetUp().";
441   }
442 
TearDown()443   virtual void TearDown() {
444     FAIL() << "Expected failure #2, in TearDown().";
445   }
446  private:
Deinit()447   void Deinit() {
448     FAIL() << "Expected failure #3, in the test fixture d'tor.";
449   }
450 };
451 
TEST_F(FatalFailureInSetUpTest,FailureInSetUp)452 TEST_F(FatalFailureInSetUpTest, FailureInSetUp) {
453   FAIL() << "UNEXPECTED failure in the test function.  "
454          << "We should never get here, as SetUp() failed.";
455 }
456 
TEST(AddFailureAtTest,MessageContainsSpecifiedFileAndLineNumber)457 TEST(AddFailureAtTest, MessageContainsSpecifiedFileAndLineNumber) {
458   ADD_FAILURE_AT("foo.cc", 42) << "Expected failure in foo.cc";
459 }
460 
461 #if GTEST_IS_THREADSAFE
462 
463 // A unary function that may die.
DieIf(bool should_die)464 void DieIf(bool should_die) {
465   GTEST_CHECK_(!should_die) << " - death inside DieIf().";
466 }
467 
468 // Tests running death tests in a multi-threaded context.
469 
470 // Used for coordination between the main and the spawn thread.
471 struct SpawnThreadNotifications {
SpawnThreadNotificationsSpawnThreadNotifications472   SpawnThreadNotifications() {}
473 
474   Notification spawn_thread_started;
475   Notification spawn_thread_ok_to_terminate;
476 
477  private:
478   GTEST_DISALLOW_COPY_AND_ASSIGN_(SpawnThreadNotifications);
479 };
480 
481 // The function to be executed in the thread spawn by the
482 // MultipleThreads test (below).
ThreadRoutine(SpawnThreadNotifications * notifications)483 static void ThreadRoutine(SpawnThreadNotifications* notifications) {
484   // Signals the main thread that this thread has started.
485   notifications->spawn_thread_started.Notify();
486 
487   // Waits for permission to finish from the main thread.
488   notifications->spawn_thread_ok_to_terminate.WaitForNotification();
489 }
490 
491 // This is a death-test test, but it's not named with a DeathTest
492 // suffix.  It starts threads which might interfere with later
493 // death tests, so it must run after all other death tests.
494 class DeathTestAndMultiThreadsTest : public testing::Test {
495  protected:
496   // Starts a thread and waits for it to begin.
SetUp()497   virtual void SetUp() {
498     thread_.reset(new ThreadWithParam<SpawnThreadNotifications*>(
499         &ThreadRoutine, &notifications_, NULL));
500     notifications_.spawn_thread_started.WaitForNotification();
501   }
502   // Tells the thread to finish, and reaps it.
503   // Depending on the version of the thread library in use,
504   // a manager thread might still be left running that will interfere
505   // with later death tests.  This is unfortunate, but this class
506   // cleans up after itself as best it can.
TearDown()507   virtual void TearDown() {
508     notifications_.spawn_thread_ok_to_terminate.Notify();
509   }
510 
511  private:
512   SpawnThreadNotifications notifications_;
513   scoped_ptr<ThreadWithParam<SpawnThreadNotifications*> > thread_;
514 };
515 
516 #endif  // GTEST_IS_THREADSAFE
517 
518 // The MixedUpTestCaseTest test case verifies that Google Test will fail a
519 // test if it uses a different fixture class than what other tests in
520 // the same test case use.  It deliberately contains two fixture
521 // classes with the same name but defined in different namespaces.
522 
523 // The MixedUpTestCaseWithSameTestNameTest test case verifies that
524 // when the user defines two tests with the same test case name AND
525 // same test name (but in different namespaces), the second test will
526 // fail.
527 
528 namespace foo {
529 
530 class MixedUpTestCaseTest : public testing::Test {
531 };
532 
TEST_F(MixedUpTestCaseTest,FirstTestFromNamespaceFoo)533 TEST_F(MixedUpTestCaseTest, FirstTestFromNamespaceFoo) {}
TEST_F(MixedUpTestCaseTest,SecondTestFromNamespaceFoo)534 TEST_F(MixedUpTestCaseTest, SecondTestFromNamespaceFoo) {}
535 
536 class MixedUpTestCaseWithSameTestNameTest : public testing::Test {
537 };
538 
TEST_F(MixedUpTestCaseWithSameTestNameTest,TheSecondTestWithThisNameShouldFail)539 TEST_F(MixedUpTestCaseWithSameTestNameTest,
540        TheSecondTestWithThisNameShouldFail) {}
541 
542 }  // namespace foo
543 
544 namespace bar {
545 
546 class MixedUpTestCaseTest : public testing::Test {
547 };
548 
549 // The following two tests are expected to fail.  We rely on the
550 // golden file to check that Google Test generates the right error message.
TEST_F(MixedUpTestCaseTest,ThisShouldFail)551 TEST_F(MixedUpTestCaseTest, ThisShouldFail) {}
TEST_F(MixedUpTestCaseTest,ThisShouldFailToo)552 TEST_F(MixedUpTestCaseTest, ThisShouldFailToo) {}
553 
554 class MixedUpTestCaseWithSameTestNameTest : public testing::Test {
555 };
556 
557 // Expected to fail.  We rely on the golden file to check that Google Test
558 // generates the right error message.
TEST_F(MixedUpTestCaseWithSameTestNameTest,TheSecondTestWithThisNameShouldFail)559 TEST_F(MixedUpTestCaseWithSameTestNameTest,
560        TheSecondTestWithThisNameShouldFail) {}
561 
562 }  // namespace bar
563 
564 // The following two test cases verify that Google Test catches the user
565 // error of mixing TEST and TEST_F in the same test case.  The first
566 // test case checks the scenario where TEST_F appears before TEST, and
567 // the second one checks where TEST appears before TEST_F.
568 
569 class TEST_F_before_TEST_in_same_test_case : public testing::Test {
570 };
571 
TEST_F(TEST_F_before_TEST_in_same_test_case,DefinedUsingTEST_F)572 TEST_F(TEST_F_before_TEST_in_same_test_case, DefinedUsingTEST_F) {}
573 
574 // Expected to fail.  We rely on the golden file to check that Google Test
575 // generates the right error message.
TEST(TEST_F_before_TEST_in_same_test_case,DefinedUsingTESTAndShouldFail)576 TEST(TEST_F_before_TEST_in_same_test_case, DefinedUsingTESTAndShouldFail) {}
577 
578 class TEST_before_TEST_F_in_same_test_case : public testing::Test {
579 };
580 
TEST(TEST_before_TEST_F_in_same_test_case,DefinedUsingTEST)581 TEST(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST) {}
582 
583 // Expected to fail.  We rely on the golden file to check that Google Test
584 // generates the right error message.
TEST_F(TEST_before_TEST_F_in_same_test_case,DefinedUsingTEST_FAndShouldFail)585 TEST_F(TEST_before_TEST_F_in_same_test_case, DefinedUsingTEST_FAndShouldFail) {
586 }
587 
588 // Used for testing EXPECT_NONFATAL_FAILURE() and EXPECT_FATAL_FAILURE().
589 int global_integer = 0;
590 
591 // Tests that EXPECT_NONFATAL_FAILURE() can reference global variables.
TEST(ExpectNonfatalFailureTest,CanReferenceGlobalVariables)592 TEST(ExpectNonfatalFailureTest, CanReferenceGlobalVariables) {
593   global_integer = 0;
594   EXPECT_NONFATAL_FAILURE({
595     EXPECT_EQ(1, global_integer) << "Expected non-fatal failure.";
596   }, "Expected non-fatal failure.");
597 }
598 
599 // Tests that EXPECT_NONFATAL_FAILURE() can reference local variables
600 // (static or not).
TEST(ExpectNonfatalFailureTest,CanReferenceLocalVariables)601 TEST(ExpectNonfatalFailureTest, CanReferenceLocalVariables) {
602   int m = 0;
603   static int n;
604   n = 1;
605   EXPECT_NONFATAL_FAILURE({
606     EXPECT_EQ(m, n) << "Expected non-fatal failure.";
607   }, "Expected non-fatal failure.");
608 }
609 
610 // Tests that EXPECT_NONFATAL_FAILURE() succeeds when there is exactly
611 // one non-fatal failure and no fatal failure.
TEST(ExpectNonfatalFailureTest,SucceedsWhenThereIsOneNonfatalFailure)612 TEST(ExpectNonfatalFailureTest, SucceedsWhenThereIsOneNonfatalFailure) {
613   EXPECT_NONFATAL_FAILURE({
614     ADD_FAILURE() << "Expected non-fatal failure.";
615   }, "Expected non-fatal failure.");
616 }
617 
618 // Tests that EXPECT_NONFATAL_FAILURE() fails when there is no
619 // non-fatal failure.
TEST(ExpectNonfatalFailureTest,FailsWhenThereIsNoNonfatalFailure)620 TEST(ExpectNonfatalFailureTest, FailsWhenThereIsNoNonfatalFailure) {
621   printf("(expecting a failure)\n");
622   EXPECT_NONFATAL_FAILURE({
623   }, "");
624 }
625 
626 // Tests that EXPECT_NONFATAL_FAILURE() fails when there are two
627 // non-fatal failures.
TEST(ExpectNonfatalFailureTest,FailsWhenThereAreTwoNonfatalFailures)628 TEST(ExpectNonfatalFailureTest, FailsWhenThereAreTwoNonfatalFailures) {
629   printf("(expecting a failure)\n");
630   EXPECT_NONFATAL_FAILURE({
631     ADD_FAILURE() << "Expected non-fatal failure 1.";
632     ADD_FAILURE() << "Expected non-fatal failure 2.";
633   }, "");
634 }
635 
636 // Tests that EXPECT_NONFATAL_FAILURE() fails when there is one fatal
637 // failure.
TEST(ExpectNonfatalFailureTest,FailsWhenThereIsOneFatalFailure)638 TEST(ExpectNonfatalFailureTest, FailsWhenThereIsOneFatalFailure) {
639   printf("(expecting a failure)\n");
640   EXPECT_NONFATAL_FAILURE({
641     FAIL() << "Expected fatal failure.";
642   }, "");
643 }
644 
645 // Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
646 // tested returns.
TEST(ExpectNonfatalFailureTest,FailsWhenStatementReturns)647 TEST(ExpectNonfatalFailureTest, FailsWhenStatementReturns) {
648   printf("(expecting a failure)\n");
649   EXPECT_NONFATAL_FAILURE({
650     return;
651   }, "");
652 }
653 
654 #if GTEST_HAS_EXCEPTIONS
655 
656 // Tests that EXPECT_NONFATAL_FAILURE() fails when the statement being
657 // tested throws.
TEST(ExpectNonfatalFailureTest,FailsWhenStatementThrows)658 TEST(ExpectNonfatalFailureTest, FailsWhenStatementThrows) {
659   printf("(expecting a failure)\n");
660   try {
661     EXPECT_NONFATAL_FAILURE({
662       throw 0;
663     }, "");
664   } catch(int) {  // NOLINT
665   }
666 }
667 
668 #endif  // GTEST_HAS_EXCEPTIONS
669 
670 // Tests that EXPECT_FATAL_FAILURE() can reference global variables.
TEST(ExpectFatalFailureTest,CanReferenceGlobalVariables)671 TEST(ExpectFatalFailureTest, CanReferenceGlobalVariables) {
672   global_integer = 0;
673   EXPECT_FATAL_FAILURE({
674     ASSERT_EQ(1, global_integer) << "Expected fatal failure.";
675   }, "Expected fatal failure.");
676 }
677 
678 // Tests that EXPECT_FATAL_FAILURE() can reference local static
679 // variables.
TEST(ExpectFatalFailureTest,CanReferenceLocalStaticVariables)680 TEST(ExpectFatalFailureTest, CanReferenceLocalStaticVariables) {
681   static int n;
682   n = 1;
683   EXPECT_FATAL_FAILURE({
684     ASSERT_EQ(0, n) << "Expected fatal failure.";
685   }, "Expected fatal failure.");
686 }
687 
688 // Tests that EXPECT_FATAL_FAILURE() succeeds when there is exactly
689 // one fatal failure and no non-fatal failure.
TEST(ExpectFatalFailureTest,SucceedsWhenThereIsOneFatalFailure)690 TEST(ExpectFatalFailureTest, SucceedsWhenThereIsOneFatalFailure) {
691   EXPECT_FATAL_FAILURE({
692     FAIL() << "Expected fatal failure.";
693   }, "Expected fatal failure.");
694 }
695 
696 // Tests that EXPECT_FATAL_FAILURE() fails when there is no fatal
697 // failure.
TEST(ExpectFatalFailureTest,FailsWhenThereIsNoFatalFailure)698 TEST(ExpectFatalFailureTest, FailsWhenThereIsNoFatalFailure) {
699   printf("(expecting a failure)\n");
700   EXPECT_FATAL_FAILURE({
701   }, "");
702 }
703 
704 // A helper for generating a fatal failure.
FatalFailure()705 void FatalFailure() {
706   FAIL() << "Expected fatal failure.";
707 }
708 
709 // Tests that EXPECT_FATAL_FAILURE() fails when there are two
710 // fatal failures.
TEST(ExpectFatalFailureTest,FailsWhenThereAreTwoFatalFailures)711 TEST(ExpectFatalFailureTest, FailsWhenThereAreTwoFatalFailures) {
712   printf("(expecting a failure)\n");
713   EXPECT_FATAL_FAILURE({
714     FatalFailure();
715     FatalFailure();
716   }, "");
717 }
718 
719 // Tests that EXPECT_FATAL_FAILURE() fails when there is one non-fatal
720 // failure.
TEST(ExpectFatalFailureTest,FailsWhenThereIsOneNonfatalFailure)721 TEST(ExpectFatalFailureTest, FailsWhenThereIsOneNonfatalFailure) {
722   printf("(expecting a failure)\n");
723   EXPECT_FATAL_FAILURE({
724     ADD_FAILURE() << "Expected non-fatal failure.";
725   }, "");
726 }
727 
728 // Tests that EXPECT_FATAL_FAILURE() fails when the statement being
729 // tested returns.
TEST(ExpectFatalFailureTest,FailsWhenStatementReturns)730 TEST(ExpectFatalFailureTest, FailsWhenStatementReturns) {
731   printf("(expecting a failure)\n");
732   EXPECT_FATAL_FAILURE({
733     return;
734   }, "");
735 }
736 
737 #if GTEST_HAS_EXCEPTIONS
738 
739 // Tests that EXPECT_FATAL_FAILURE() fails when the statement being
740 // tested throws.
TEST(ExpectFatalFailureTest,FailsWhenStatementThrows)741 TEST(ExpectFatalFailureTest, FailsWhenStatementThrows) {
742   printf("(expecting a failure)\n");
743   try {
744     EXPECT_FATAL_FAILURE({
745       throw 0;
746     }, "");
747   } catch(int) {  // NOLINT
748   }
749 }
750 
751 #endif  // GTEST_HAS_EXCEPTIONS
752 
753 // This #ifdef block tests the output of typed tests.
754 #if GTEST_HAS_TYPED_TEST
755 
756 template <typename T>
757 class TypedTest : public testing::Test {
758 };
759 
760 TYPED_TEST_CASE(TypedTest, testing::Types<int>);
761 
TYPED_TEST(TypedTest,Success)762 TYPED_TEST(TypedTest, Success) {
763   EXPECT_EQ(0, TypeParam());
764 }
765 
TYPED_TEST(TypedTest,Failure)766 TYPED_TEST(TypedTest, Failure) {
767   EXPECT_EQ(1, TypeParam()) << "Expected failure";
768 }
769 
770 #endif  // GTEST_HAS_TYPED_TEST
771 
772 // This #ifdef block tests the output of type-parameterized tests.
773 #if GTEST_HAS_TYPED_TEST_P
774 
775 template <typename T>
776 class TypedTestP : public testing::Test {
777 };
778 
779 TYPED_TEST_CASE_P(TypedTestP);
780 
TYPED_TEST_P(TypedTestP,Success)781 TYPED_TEST_P(TypedTestP, Success) {
782   EXPECT_EQ(0U, TypeParam());
783 }
784 
TYPED_TEST_P(TypedTestP,Failure)785 TYPED_TEST_P(TypedTestP, Failure) {
786   EXPECT_EQ(1U, TypeParam()) << "Expected failure";
787 }
788 
789 REGISTER_TYPED_TEST_CASE_P(TypedTestP, Success, Failure);
790 
791 typedef testing::Types<unsigned char, unsigned int> UnsignedTypes;
792 INSTANTIATE_TYPED_TEST_CASE_P(Unsigned, TypedTestP, UnsignedTypes);
793 
794 #endif  // GTEST_HAS_TYPED_TEST_P
795 
796 #if GTEST_HAS_DEATH_TEST
797 
798 // We rely on the golden file to verify that tests whose test case
799 // name ends with DeathTest are run first.
800 
TEST(ADeathTest,ShouldRunFirst)801 TEST(ADeathTest, ShouldRunFirst) {
802 }
803 
804 # if GTEST_HAS_TYPED_TEST
805 
806 // We rely on the golden file to verify that typed tests whose test
807 // case name ends with DeathTest are run first.
808 
809 template <typename T>
810 class ATypedDeathTest : public testing::Test {
811 };
812 
813 typedef testing::Types<int, double> NumericTypes;
814 TYPED_TEST_CASE(ATypedDeathTest, NumericTypes);
815 
TYPED_TEST(ATypedDeathTest,ShouldRunFirst)816 TYPED_TEST(ATypedDeathTest, ShouldRunFirst) {
817 }
818 
819 # endif  // GTEST_HAS_TYPED_TEST
820 
821 # if GTEST_HAS_TYPED_TEST_P
822 
823 
824 // We rely on the golden file to verify that type-parameterized tests
825 // whose test case name ends with DeathTest are run first.
826 
827 template <typename T>
828 class ATypeParamDeathTest : public testing::Test {
829 };
830 
831 TYPED_TEST_CASE_P(ATypeParamDeathTest);
832 
TYPED_TEST_P(ATypeParamDeathTest,ShouldRunFirst)833 TYPED_TEST_P(ATypeParamDeathTest, ShouldRunFirst) {
834 }
835 
836 REGISTER_TYPED_TEST_CASE_P(ATypeParamDeathTest, ShouldRunFirst);
837 
838 INSTANTIATE_TYPED_TEST_CASE_P(My, ATypeParamDeathTest, NumericTypes);
839 
840 # endif  // GTEST_HAS_TYPED_TEST_P
841 
842 #endif  // GTEST_HAS_DEATH_TEST
843 
844 // Tests various failure conditions of
845 // EXPECT_{,NON}FATAL_FAILURE{,_ON_ALL_THREADS}.
846 class ExpectFailureTest : public testing::Test {
847  public:  // Must be public and not protected due to a bug in g++ 3.4.2.
848   enum FailureMode {
849     FATAL_FAILURE,
850     NONFATAL_FAILURE
851   };
AddFailure(FailureMode failure)852   static void AddFailure(FailureMode failure) {
853     if (failure == FATAL_FAILURE) {
854       FAIL() << "Expected fatal failure.";
855     } else {
856       ADD_FAILURE() << "Expected non-fatal failure.";
857     }
858   }
859 };
860 
TEST_F(ExpectFailureTest,ExpectFatalFailure)861 TEST_F(ExpectFailureTest, ExpectFatalFailure) {
862   // Expected fatal failure, but succeeds.
863   printf("(expecting 1 failure)\n");
864   EXPECT_FATAL_FAILURE(SUCCEED(), "Expected fatal failure.");
865   // Expected fatal failure, but got a non-fatal failure.
866   printf("(expecting 1 failure)\n");
867   EXPECT_FATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Expected non-fatal "
868                        "failure.");
869   // Wrong message.
870   printf("(expecting 1 failure)\n");
871   EXPECT_FATAL_FAILURE(AddFailure(FATAL_FAILURE), "Some other fatal failure "
872                        "expected.");
873 }
874 
TEST_F(ExpectFailureTest,ExpectNonFatalFailure)875 TEST_F(ExpectFailureTest, ExpectNonFatalFailure) {
876   // Expected non-fatal failure, but succeeds.
877   printf("(expecting 1 failure)\n");
878   EXPECT_NONFATAL_FAILURE(SUCCEED(), "Expected non-fatal failure.");
879   // Expected non-fatal failure, but got a fatal failure.
880   printf("(expecting 1 failure)\n");
881   EXPECT_NONFATAL_FAILURE(AddFailure(FATAL_FAILURE), "Expected fatal failure.");
882   // Wrong message.
883   printf("(expecting 1 failure)\n");
884   EXPECT_NONFATAL_FAILURE(AddFailure(NONFATAL_FAILURE), "Some other non-fatal "
885                           "failure.");
886 }
887 
888 #if GTEST_IS_THREADSAFE
889 
890 class ExpectFailureWithThreadsTest : public ExpectFailureTest {
891  protected:
AddFailureInOtherThread(FailureMode failure)892   static void AddFailureInOtherThread(FailureMode failure) {
893     ThreadWithParam<FailureMode> thread(&AddFailure, failure, NULL);
894     thread.Join();
895   }
896 };
897 
TEST_F(ExpectFailureWithThreadsTest,ExpectFatalFailure)898 TEST_F(ExpectFailureWithThreadsTest, ExpectFatalFailure) {
899   // We only intercept the current thread.
900   printf("(expecting 2 failures)\n");
901   EXPECT_FATAL_FAILURE(AddFailureInOtherThread(FATAL_FAILURE),
902                        "Expected fatal failure.");
903 }
904 
TEST_F(ExpectFailureWithThreadsTest,ExpectNonFatalFailure)905 TEST_F(ExpectFailureWithThreadsTest, ExpectNonFatalFailure) {
906   // We only intercept the current thread.
907   printf("(expecting 2 failures)\n");
908   EXPECT_NONFATAL_FAILURE(AddFailureInOtherThread(NONFATAL_FAILURE),
909                           "Expected non-fatal failure.");
910 }
911 
912 typedef ExpectFailureWithThreadsTest ScopedFakeTestPartResultReporterTest;
913 
914 // Tests that the ScopedFakeTestPartResultReporter only catches failures from
915 // the current thread if it is instantiated with INTERCEPT_ONLY_CURRENT_THREAD.
TEST_F(ScopedFakeTestPartResultReporterTest,InterceptOnlyCurrentThread)916 TEST_F(ScopedFakeTestPartResultReporterTest, InterceptOnlyCurrentThread) {
917   printf("(expecting 2 failures)\n");
918   TestPartResultArray results;
919   {
920     ScopedFakeTestPartResultReporter reporter(
921         ScopedFakeTestPartResultReporter::INTERCEPT_ONLY_CURRENT_THREAD,
922         &results);
923     AddFailureInOtherThread(FATAL_FAILURE);
924     AddFailureInOtherThread(NONFATAL_FAILURE);
925   }
926   // The two failures should not have been intercepted.
927   EXPECT_EQ(0, results.size()) << "This shouldn't fail.";
928 }
929 
930 #endif  // GTEST_IS_THREADSAFE
931 
TEST_F(ExpectFailureTest,ExpectFatalFailureOnAllThreads)932 TEST_F(ExpectFailureTest, ExpectFatalFailureOnAllThreads) {
933   // Expected fatal failure, but succeeds.
934   printf("(expecting 1 failure)\n");
935   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected fatal failure.");
936   // Expected fatal failure, but got a non-fatal failure.
937   printf("(expecting 1 failure)\n");
938   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
939                                       "Expected non-fatal failure.");
940   // Wrong message.
941   printf("(expecting 1 failure)\n");
942   EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
943                                       "Some other fatal failure expected.");
944 }
945 
TEST_F(ExpectFailureTest,ExpectNonFatalFailureOnAllThreads)946 TEST_F(ExpectFailureTest, ExpectNonFatalFailureOnAllThreads) {
947   // Expected non-fatal failure, but succeeds.
948   printf("(expecting 1 failure)\n");
949   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(SUCCEED(), "Expected non-fatal "
950                                          "failure.");
951   // Expected non-fatal failure, but got a fatal failure.
952   printf("(expecting 1 failure)\n");
953   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(FATAL_FAILURE),
954                                          "Expected fatal failure.");
955   // Wrong message.
956   printf("(expecting 1 failure)\n");
957   EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddFailure(NONFATAL_FAILURE),
958                                          "Some other non-fatal failure.");
959 }
960 
961 
962 // Two test environments for testing testing::AddGlobalTestEnvironment().
963 
964 class FooEnvironment : public testing::Environment {
965  public:
SetUp()966   virtual void SetUp() {
967     printf("%s", "FooEnvironment::SetUp() called.\n");
968   }
969 
TearDown()970   virtual void TearDown() {
971     printf("%s", "FooEnvironment::TearDown() called.\n");
972     FAIL() << "Expected fatal failure.";
973   }
974 };
975 
976 class BarEnvironment : public testing::Environment {
977  public:
SetUp()978   virtual void SetUp() {
979     printf("%s", "BarEnvironment::SetUp() called.\n");
980   }
981 
TearDown()982   virtual void TearDown() {
983     printf("%s", "BarEnvironment::TearDown() called.\n");
984     ADD_FAILURE() << "Expected non-fatal failure.";
985   }
986 };
987 
988 bool GTEST_FLAG(internal_skip_environment_and_ad_hoc_tests) = false;
989 
990 // The main function.
991 //
992 // The idea is to use Google Test to run all the tests we have defined (some
993 // of them are intended to fail), and then compare the test results
994 // with the "golden" file.
main(int argc,char ** argv)995 int main(int argc, char **argv) {
996   testing::GTEST_FLAG(print_time) = false;
997 
998   // We just run the tests, knowing some of them are intended to fail.
999   // We will use a separate Python script to compare the output of
1000   // this program with the golden file.
1001 
1002   // It's hard to test InitGoogleTest() directly, as it has many
1003   // global side effects.  The following line serves as a sanity test
1004   // for it.
1005   testing::InitGoogleTest(&argc, argv);
1006   if (argc >= 2 &&
1007       (std::string(argv[1]) ==
1008        "--gtest_internal_skip_environment_and_ad_hoc_tests"))
1009     GTEST_FLAG(internal_skip_environment_and_ad_hoc_tests) = true;
1010 
1011 #if GTEST_HAS_DEATH_TEST
1012   if (testing::internal::GTEST_FLAG(internal_run_death_test) != "") {
1013     // Skip the usual output capturing if we're running as the child
1014     // process of an threadsafe-style death test.
1015 # if GTEST_OS_WINDOWS
1016     posix::FReopen("nul:", "w", stdout);
1017 # else
1018     posix::FReopen("/dev/null", "w", stdout);
1019 # endif  // GTEST_OS_WINDOWS
1020     return RUN_ALL_TESTS();
1021   }
1022 #endif  // GTEST_HAS_DEATH_TEST
1023 
1024   if (GTEST_FLAG(internal_skip_environment_and_ad_hoc_tests))
1025     return RUN_ALL_TESTS();
1026 
1027   // Registers two global test environments.
1028   // The golden file verifies that they are set up in the order they
1029   // are registered, and torn down in the reverse order.
1030   testing::AddGlobalTestEnvironment(new FooEnvironment);
1031   testing::AddGlobalTestEnvironment(new BarEnvironment);
1032 
1033   return RunAllTests();
1034 }
1035