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 // A unit test for Google Test itself. This verifies that the basic
31 // constructs of Google Test work.
32 //
33 // Author: wan@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.
TestEq1(int x)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.
TryTestSubroutine()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
TEST(PassingTest,PassingTest1)82 TEST(PassingTest, PassingTest1) {
83 }
84
TEST(PassingTest,PassingTest2)85 TEST(PassingTest, PassingTest2) {
86 }
87
88 // Tests catching a fatal failure in a subroutine.
TEST(FatalFailureTest,FatalFailureInSubroutine)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.
TEST(FatalFailureTest,FatalFailureInNestedSubroutine)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.
TEST(FatalFailureTest,NonfatalFailureInSubroutine)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.
TEST(LoggingTest,InterleavingLoggingAndAssertions)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.
SubWithoutTrace(int n)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.
SubWithTrace(int n)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.
TEST(SCOPED_TRACETest,ObeysScopes)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.
TEST(SCOPED_TRACETest,WorksInLoop)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.
TEST(SCOPED_TRACETest,WorksInSubroutine)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.
TEST(SCOPED_TRACETest,CanBeNested)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.
TEST(SCOPED_TRACETest,CanBeRepeated)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
TEST(DisabledTestsWarningTest,DISABLED_AlsoRunDisabledTestsFlagSuppressesWarning)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.
AdHocTest()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.
RunAllTests()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:
NonFatalFailureInFixtureConstructorTest()243 NonFatalFailureInFixtureConstructorTest() {
244 printf("(expecting 5 failures)\n");
245 ADD_FAILURE() << "Expected failure #1, in the test fixture c'tor.";
246 }
247
~NonFatalFailureInFixtureConstructorTest()248 ~NonFatalFailureInFixtureConstructorTest() {
249 ADD_FAILURE() << "Expected failure #5, in the test fixture d'tor.";
250 }
251
SetUp()252 virtual void SetUp() {
253 ADD_FAILURE() << "Expected failure #2, in SetUp().";
254 }
255
TearDown()256 virtual void TearDown() {
257 ADD_FAILURE() << "Expected failure #4, in TearDown.";
258 }
259 };
260
TEST_F(NonFatalFailureInFixtureConstructorTest,FailureInConstructor)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:
FatalFailureInFixtureConstructorTest()268 FatalFailureInFixtureConstructorTest() {
269 printf("(expecting 2 failures)\n");
270 Init();
271 }
272
~FatalFailureInFixtureConstructorTest()273 ~FatalFailureInFixtureConstructorTest() {
274 ADD_FAILURE() << "Expected failure #2, in the test fixture d'tor.";
275 }
276
SetUp()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
TearDown()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:
Init()289 void Init() {
290 FAIL() << "Expected failure #1, in the test fixture c'tor.";
291 }
292 };
293
TEST_F(FatalFailureInFixtureConstructorTest,FailureInConstructor)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:
~NonFatalFailureInSetUpTest()303 virtual ~NonFatalFailureInSetUpTest() {
304 Deinit();
305 }
306
SetUp()307 virtual void SetUp() {
308 printf("(expecting 4 failures)\n");
309 ADD_FAILURE() << "Expected failure #1, in SetUp().";
310 }
311
TearDown()312 virtual void TearDown() {
313 FAIL() << "Expected failure #3, in TearDown().";
314 }
315 private:
Deinit()316 void Deinit() {
317 FAIL() << "Expected failure #4, in the test fixture d'tor.";
318 }
319 };
320
TEST_F(NonFatalFailureInSetUpTest,FailureInSetUp)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:
~FatalFailureInSetUpTest()328 virtual ~FatalFailureInSetUpTest() {
329 Deinit();
330 }
331
SetUp()332 virtual void SetUp() {
333 printf("(expecting 3 failures)\n");
334 FAIL() << "Expected failure #1, in SetUp().";
335 }
336
TearDown()337 virtual void TearDown() {
338 FAIL() << "Expected failure #2, in TearDown().";
339 }
340 private:
Deinit()341 void Deinit() {
342 FAIL() << "Expected failure #3, in the test fixture d'tor.";
343 }
344 };
345
TEST_F(FatalFailureInSetUpTest,FailureInSetUp)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.
ThrowSEH()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:
ExceptionInFixtureCtorTest()365 ExceptionInFixtureCtorTest() {
366 printf("(expecting a failure on thrown exception "
367 "in the test fixture's constructor)\n");
368
369 ThrowSEH();
370 }
371
~ExceptionInFixtureCtorTest()372 virtual ~ExceptionInFixtureCtorTest() {
373 Deinit();
374 }
375
SetUp()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
TearDown()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:
Deinit()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
TEST_F(ExceptionInFixtureCtorTest,ExceptionInFixtureCtor)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:
~ExceptionInSetUpTest()400 virtual ~ExceptionInSetUpTest() {
401 Deinit();
402 }
403
SetUp()404 virtual void SetUp() {
405 printf("(expecting 3 failures)\n");
406
407 ThrowSEH();
408 }
409
TearDown()410 virtual void TearDown() {
411 FAIL() << "Expected failure #2, in TearDown().";
412 }
413 private:
Deinit()414 void Deinit() {
415 FAIL() << "Expected failure #3, in the test fixture d'tor.";
416 }
417 };
418
TEST_F(ExceptionInSetUpTest,ExceptionInSetUp)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:
~ExceptionInTestFunctionTest()428 virtual ~ExceptionInTestFunctionTest() {
429 Deinit();
430 }
431
TearDown()432 virtual void TearDown() {
433 FAIL() << "Expected failure #2, in TearDown().";
434 }
435 private:
Deinit()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.
TEST_F(ExceptionInTestFunctionTest,SEH)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.
TEST_F(ExceptionInTestFunctionTest,CppException)454 TEST_F(ExceptionInTestFunctionTest, CppException) {
455 throw 1;
456 }
457
458 // Tests exceptions thrown in TearDown().
459 class ExceptionInTearDownTest : public testing::Test {
460 protected:
~ExceptionInTearDownTest()461 virtual ~ExceptionInTearDownTest() {
462 Deinit();
463 }
464
TearDown()465 virtual void TearDown() {
466 throw 1;
467 }
468 private:
Deinit()469 void Deinit() {
470 FAIL() << "Expected failure #2, in the test fixture d'tor.";
471 }
472 };
473
TEST_F(ExceptionInTearDownTest,ExceptionInTearDown)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
TEST_F(MixedUpTestCaseTest,FirstTestFromNamespaceFoo)497 TEST_F(MixedUpTestCaseTest, FirstTestFromNamespaceFoo) {}
TEST_F(MixedUpTestCaseTest,SecondTestFromNamespaceFoo)498 TEST_F(MixedUpTestCaseTest, SecondTestFromNamespaceFoo) {}
499
500 class MixedUpTestCaseWithSameTestNameTest : public testing::Test {
501 };
502
TEST_F(MixedUpTestCaseWithSameTestNameTest,TheSecondTestWithThisNameShouldFail)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.
TEST_F(MixedUpTestCaseTest,ThisShouldFail)515 TEST_F(MixedUpTestCaseTest, ThisShouldFail) {}
TEST_F(MixedUpTestCaseTest,ThisShouldFailToo)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.
TEST_F(MixedUpTestCaseWithSameTestNameTest,TheSecondTestWithThisNameShouldFail)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
TEST_F(TEST_F_before_TEST_in_same_test_case,DefinedUsingTEST_F)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.
TEST(TEST_F_before_TEST_in_same_test_case,DefinedUsingTESTAndShouldFail)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
TEST(TEST_before_TEST_F_in_same_test_case,DefinedUsingTEST)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.
TEST_F(TEST_before_TEST_F_in_same_test_case,DefinedUsingTEST_FAndShouldFail)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.
TEST(ExpectNonfatalFailureTest,CanReferenceGlobalVariables)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).
TEST(ExpectNonfatalFailureTest,CanReferenceLocalVariables)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.
TEST(ExpectNonfatalFailureTest,SucceedsWhenThereIsOneNonfatalFailure)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.
TEST(ExpectNonfatalFailureTest,FailsWhenThereIsNoNonfatalFailure)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.
TEST(ExpectNonfatalFailureTest,FailsWhenThereAreTwoNonfatalFailures)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.
TEST(ExpectNonfatalFailureTest,FailsWhenThereIsOneFatalFailure)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.
TEST(ExpectNonfatalFailureTest,FailsWhenStatementReturns)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.
TEST(ExpectNonfatalFailureTest,FailsWhenStatementThrows)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.
TEST(ExpectFatalFailureTest,CanReferenceGlobalVariables)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.
TEST(ExpectFatalFailureTest,CanReferenceLocalStaticVariables)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.
TEST(ExpectFatalFailureTest,SucceedsWhenThereIsOneFatalFailure)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.
TEST(ExpectFatalFailureTest,FailsWhenThereIsNoFatalFailure)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.
FatalFailure()669 void FatalFailure() {
670 FAIL() << "Expected fatal failure.";
671 }
672
673 // Tests that EXPECT_FATAL_FAILURE() fails when there are two
674 // fatal failures.
TEST(ExpectFatalFailureTest,FailsWhenThereAreTwoFatalFailures)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.
TEST(ExpectFatalFailureTest,FailsWhenThereIsOneNonfatalFailure)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.
TEST(ExpectFatalFailureTest,FailsWhenStatementReturns)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.
TEST(ExpectFatalFailureTest,FailsWhenStatementThrows)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
TYPED_TEST(TypedTest,Success)726 TYPED_TEST(TypedTest, Success) {
727 EXPECT_EQ(0, TypeParam());
728 }
729
TYPED_TEST(TypedTest,Failure)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
TYPED_TEST_P(TypedTestP,Success)745 TYPED_TEST_P(TypedTestP, Success) {
746 EXPECT_EQ(0U, TypeParam());
747 }
748
TYPED_TEST_P(TypedTestP,Failure)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
TEST(ADeathTest,ShouldRunFirst)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
TYPED_TEST(ATypedDeathTest,ShouldRunFirst)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
TYPED_TEST_P(ATypeParamDeathTest,ShouldRunFirst)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 };
AddFailure(FailureMode failure)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
TEST_F(ExpectFailureTest,ExpectFatalFailure)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
TEST_F(ExpectFailureTest,ExpectNonFatalFailure)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:
AddFailureInOtherThread(FailureMode failure)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:
FailureThread(void * attr)865 static void* FailureThread(void* attr) {
866 FailureMode* failure = static_cast<FailureMode*>(attr);
867 AddFailure(*failure);
868 return NULL;
869 }
870 };
871
TEST_F(ExpectFailureWithThreadsTest,ExpectFatalFailure)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
TEST_F(ExpectFailureWithThreadsTest,ExpectNonFatalFailure)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.
TEST_F(ScopedFakeTestPartResultReporterTest,InterceptOnlyCurrentThread)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
TEST_F(ExpectFailureTest,ExpectFatalFailureOnAllThreads)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
TEST_F(ExpectFailureTest,ExpectNonFatalFailureOnAllThreads)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:
SetUp()940 virtual void SetUp() {
941 printf("%s", "FooEnvironment::SetUp() called.\n");
942 }
943
TearDown()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:
SetUp()952 virtual void SetUp() {
953 printf("%s", "BarEnvironment::SetUp() called.\n");
954 }
955
TearDown()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.
main(int argc,char ** argv)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