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Diffstat (limited to 'googletest/test/googletest-death-test-test.cc')
| -rw-r--r-- | googletest/test/googletest-death-test-test.cc | 1423 |
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diff --git a/googletest/test/googletest-death-test-test.cc b/googletest/test/googletest-death-test-test.cc new file mode 100644 index 0000000..c0c3026 --- /dev/null +++ b/googletest/test/googletest-death-test-test.cc @@ -0,0 +1,1423 @@ +// Copyright 2005, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// +// Tests for death tests. + +#include "gtest/gtest-death-test.h" +#include "gtest/gtest.h" +#include "gtest/internal/gtest-filepath.h" + +using testing::internal::AlwaysFalse; +using testing::internal::AlwaysTrue; + +#if GTEST_HAS_DEATH_TEST + +# if GTEST_OS_WINDOWS +# include <direct.h> // For chdir(). +# else +# include <unistd.h> +# include <sys/wait.h> // For waitpid. +# endif // GTEST_OS_WINDOWS + +# include <limits.h> +# include <signal.h> +# include <stdio.h> + +# if GTEST_OS_LINUX +# include <sys/time.h> +# endif // GTEST_OS_LINUX + +# include "gtest/gtest-spi.h" +# include "src/gtest-internal-inl.h" + +namespace posix = ::testing::internal::posix; + +using testing::Message; +using testing::internal::DeathTest; +using testing::internal::DeathTestFactory; +using testing::internal::FilePath; +using testing::internal::GetLastErrnoDescription; +using testing::internal::GetUnitTestImpl; +using testing::internal::InDeathTestChild; +using testing::internal::ParseNaturalNumber; + +namespace testing { +namespace internal { + +// A helper class whose objects replace the death test factory for a +// single UnitTest object during their lifetimes. +class ReplaceDeathTestFactory { + public: + explicit ReplaceDeathTestFactory(DeathTestFactory* new_factory) + : unit_test_impl_(GetUnitTestImpl()) { + old_factory_ = unit_test_impl_->death_test_factory_.release(); + unit_test_impl_->death_test_factory_.reset(new_factory); + } + + ~ReplaceDeathTestFactory() { + unit_test_impl_->death_test_factory_.release(); + unit_test_impl_->death_test_factory_.reset(old_factory_); + } + private: + // Prevents copying ReplaceDeathTestFactory objects. + ReplaceDeathTestFactory(const ReplaceDeathTestFactory&); + void operator=(const ReplaceDeathTestFactory&); + + UnitTestImpl* unit_test_impl_; + DeathTestFactory* old_factory_; +}; + +} // namespace internal +} // namespace testing + +void DieWithMessage(const ::std::string& message) { + fprintf(stderr, "%s", message.c_str()); + fflush(stderr); // Make sure the text is printed before the process exits. + + // We call _exit() instead of exit(), as the former is a direct + // system call and thus safer in the presence of threads. exit() + // will invoke user-defined exit-hooks, which may do dangerous + // things that conflict with death tests. + // + // Some compilers can recognize that _exit() never returns and issue the + // 'unreachable code' warning for code following this function, unless + // fooled by a fake condition. + if (AlwaysTrue()) + _exit(1); +} + +void DieInside(const ::std::string& function) { + DieWithMessage("death inside " + function + "()."); +} + +// Tests that death tests work. + +class TestForDeathTest : public testing::Test { + protected: + TestForDeathTest() : original_dir_(FilePath::GetCurrentDir()) {} + + virtual ~TestForDeathTest() { + posix::ChDir(original_dir_.c_str()); + } + + // A static member function that's expected to die. + static void StaticMemberFunction() { DieInside("StaticMemberFunction"); } + + // A method of the test fixture that may die. + void MemberFunction() { + if (should_die_) + DieInside("MemberFunction"); + } + + // True iff MemberFunction() should die. + bool should_die_; + const FilePath original_dir_; +}; + +// A class with a member function that may die. +class MayDie { + public: + explicit MayDie(bool should_die) : should_die_(should_die) {} + + // A member function that may die. + void MemberFunction() const { + if (should_die_) + DieInside("MayDie::MemberFunction"); + } + + private: + // True iff MemberFunction() should die. + bool should_die_; +}; + +// A global function that's expected to die. +void GlobalFunction() { DieInside("GlobalFunction"); } + +// A non-void function that's expected to die. +int NonVoidFunction() { + DieInside("NonVoidFunction"); + return 1; +} + +// A unary function that may die. +void DieIf(bool should_die) { + if (should_die) + DieInside("DieIf"); +} + +// A binary function that may die. +bool DieIfLessThan(int x, int y) { + if (x < y) { + DieInside("DieIfLessThan"); + } + return true; +} + +// Tests that ASSERT_DEATH can be used outside a TEST, TEST_F, or test fixture. +void DeathTestSubroutine() { + EXPECT_DEATH(GlobalFunction(), "death.*GlobalFunction"); + ASSERT_DEATH(GlobalFunction(), "death.*GlobalFunction"); +} + +// Death in dbg, not opt. +int DieInDebugElse12(int* sideeffect) { + if (sideeffect) *sideeffect = 12; + +# ifndef NDEBUG + + DieInside("DieInDebugElse12"); + +# endif // NDEBUG + + return 12; +} + +# if GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA + +// Tests the ExitedWithCode predicate. +TEST(ExitStatusPredicateTest, ExitedWithCode) { + // On Windows, the process's exit code is the same as its exit status, + // so the predicate just compares the its input with its parameter. + EXPECT_TRUE(testing::ExitedWithCode(0)(0)); + EXPECT_TRUE(testing::ExitedWithCode(1)(1)); + EXPECT_TRUE(testing::ExitedWithCode(42)(42)); + EXPECT_FALSE(testing::ExitedWithCode(0)(1)); + EXPECT_FALSE(testing::ExitedWithCode(1)(0)); +} + +# else + +// Returns the exit status of a process that calls _exit(2) with a +// given exit code. This is a helper function for the +// ExitStatusPredicateTest test suite. +static int NormalExitStatus(int exit_code) { + pid_t child_pid = fork(); + if (child_pid == 0) { + _exit(exit_code); + } + int status; + waitpid(child_pid, &status, 0); + return status; +} + +// Returns the exit status of a process that raises a given signal. +// If the signal does not cause the process to die, then it returns +// instead the exit status of a process that exits normally with exit +// code 1. This is a helper function for the ExitStatusPredicateTest +// test suite. +static int KilledExitStatus(int signum) { + pid_t child_pid = fork(); + if (child_pid == 0) { + raise(signum); + _exit(1); + } + int status; + waitpid(child_pid, &status, 0); + return status; +} + +// Tests the ExitedWithCode predicate. +TEST(ExitStatusPredicateTest, ExitedWithCode) { + const int status0 = NormalExitStatus(0); + const int status1 = NormalExitStatus(1); + const int status42 = NormalExitStatus(42); + const testing::ExitedWithCode pred0(0); + const testing::ExitedWithCode pred1(1); + const testing::ExitedWithCode pred42(42); + EXPECT_PRED1(pred0, status0); + EXPECT_PRED1(pred1, status1); + EXPECT_PRED1(pred42, status42); + EXPECT_FALSE(pred0(status1)); + EXPECT_FALSE(pred42(status0)); + EXPECT_FALSE(pred1(status42)); +} + +// Tests the KilledBySignal predicate. +TEST(ExitStatusPredicateTest, KilledBySignal) { + const int status_segv = KilledExitStatus(SIGSEGV); + const int status_kill = KilledExitStatus(SIGKILL); + const testing::KilledBySignal pred_segv(SIGSEGV); + const testing::KilledBySignal pred_kill(SIGKILL); + EXPECT_PRED1(pred_segv, status_segv); + EXPECT_PRED1(pred_kill, status_kill); + EXPECT_FALSE(pred_segv(status_kill)); + EXPECT_FALSE(pred_kill(status_segv)); +} + +# endif // GTEST_OS_WINDOWS || GTEST_OS_FUCHSIA + +// Tests that the death test macros expand to code which may or may not +// be followed by operator<<, and that in either case the complete text +// comprises only a single C++ statement. +TEST_F(TestForDeathTest, SingleStatement) { + if (AlwaysFalse()) + // This would fail if executed; this is a compilation test only + ASSERT_DEATH(return, ""); + + if (AlwaysTrue()) + EXPECT_DEATH(_exit(1), ""); + else + // This empty "else" branch is meant to ensure that EXPECT_DEATH + // doesn't expand into an "if" statement without an "else" + ; + + if (AlwaysFalse()) + ASSERT_DEATH(return, "") << "did not die"; + + if (AlwaysFalse()) + ; + else + EXPECT_DEATH(_exit(1), "") << 1 << 2 << 3; +} + +void DieWithEmbeddedNul() { + fprintf(stderr, "Hello%cmy null world.\n", '\0'); + fflush(stderr); + _exit(1); +} + +# if GTEST_USES_PCRE + +// Tests that EXPECT_DEATH and ASSERT_DEATH work when the error +// message has a NUL character in it. +TEST_F(TestForDeathTest, EmbeddedNulInMessage) { + EXPECT_DEATH(DieWithEmbeddedNul(), "my null world"); + ASSERT_DEATH(DieWithEmbeddedNul(), "my null world"); +} + +# endif // GTEST_USES_PCRE + +// Tests that death test macros expand to code which interacts well with switch +// statements. +TEST_F(TestForDeathTest, SwitchStatement) { + // Microsoft compiler usually complains about switch statements without + // case labels. We suppress that warning for this test. + GTEST_DISABLE_MSC_WARNINGS_PUSH_(4065) + + switch (0) + default: + ASSERT_DEATH(_exit(1), "") << "exit in default switch handler"; + + switch (0) + case 0: + EXPECT_DEATH(_exit(1), "") << "exit in switch case"; + + GTEST_DISABLE_MSC_WARNINGS_POP_() +} + +// Tests that a static member function can be used in a "fast" style +// death test. +TEST_F(TestForDeathTest, StaticMemberFunctionFastStyle) { + testing::GTEST_FLAG(death_test_style) = "fast"; + ASSERT_DEATH(StaticMemberFunction(), "death.*StaticMember"); +} + +// Tests that a method of the test fixture can be used in a "fast" +// style death test. +TEST_F(TestForDeathTest, MemberFunctionFastStyle) { + testing::GTEST_FLAG(death_test_style) = "fast"; + should_die_ = true; + EXPECT_DEATH(MemberFunction(), "inside.*MemberFunction"); +} + +void ChangeToRootDir() { posix::ChDir(GTEST_PATH_SEP_); } + +// Tests that death tests work even if the current directory has been +// changed. +TEST_F(TestForDeathTest, FastDeathTestInChangedDir) { + testing::GTEST_FLAG(death_test_style) = "fast"; + + ChangeToRootDir(); + EXPECT_EXIT(_exit(1), testing::ExitedWithCode(1), ""); + + ChangeToRootDir(); + ASSERT_DEATH(_exit(1), ""); +} + +# if GTEST_OS_LINUX +void SigprofAction(int, siginfo_t*, void*) { /* no op */ } + +// Sets SIGPROF action and ITIMER_PROF timer (interval: 1ms). +void SetSigprofActionAndTimer() { + struct itimerval timer; + timer.it_interval.tv_sec = 0; + timer.it_interval.tv_usec = 1; + timer.it_value = timer.it_interval; + ASSERT_EQ(0, setitimer(ITIMER_PROF, &timer, NULL)); + struct sigaction signal_action; + memset(&signal_action, 0, sizeof(signal_action)); + sigemptyset(&signal_action.sa_mask); + signal_action.sa_sigaction = SigprofAction; + signal_action.sa_flags = SA_RESTART | SA_SIGINFO; + ASSERT_EQ(0, sigaction(SIGPROF, &signal_action, NULL)); +} + +// Disables ITIMER_PROF timer and ignores SIGPROF signal. +void DisableSigprofActionAndTimer(struct sigaction* old_signal_action) { + struct itimerval timer; + timer.it_interval.tv_sec = 0; + timer.it_interval.tv_usec = 0; + timer.it_value = timer.it_interval; + ASSERT_EQ(0, setitimer(ITIMER_PROF, &timer, NULL)); + struct sigaction signal_action; + memset(&signal_action, 0, sizeof(signal_action)); + sigemptyset(&signal_action.sa_mask); + signal_action.sa_handler = SIG_IGN; + ASSERT_EQ(0, sigaction(SIGPROF, &signal_action, old_signal_action)); +} + +// Tests that death tests work when SIGPROF handler and timer are set. +TEST_F(TestForDeathTest, FastSigprofActionSet) { + testing::GTEST_FLAG(death_test_style) = "fast"; + SetSigprofActionAndTimer(); + EXPECT_DEATH(_exit(1), ""); + struct sigaction old_signal_action; + DisableSigprofActionAndTimer(&old_signal_action); + EXPECT_TRUE(old_signal_action.sa_sigaction == SigprofAction); +} + +TEST_F(TestForDeathTest, ThreadSafeSigprofActionSet) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + SetSigprofActionAndTimer(); + EXPECT_DEATH(_exit(1), ""); + struct sigaction old_signal_action; + DisableSigprofActionAndTimer(&old_signal_action); + EXPECT_TRUE(old_signal_action.sa_sigaction == SigprofAction); +} +# endif // GTEST_OS_LINUX + +// Repeats a representative sample of death tests in the "threadsafe" style: + +TEST_F(TestForDeathTest, StaticMemberFunctionThreadsafeStyle) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + ASSERT_DEATH(StaticMemberFunction(), "death.*StaticMember"); +} + +TEST_F(TestForDeathTest, MemberFunctionThreadsafeStyle) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + should_die_ = true; + EXPECT_DEATH(MemberFunction(), "inside.*MemberFunction"); +} + +TEST_F(TestForDeathTest, ThreadsafeDeathTestInLoop) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + + for (int i = 0; i < 3; ++i) + EXPECT_EXIT(_exit(i), testing::ExitedWithCode(i), "") << ": i = " << i; +} + +TEST_F(TestForDeathTest, ThreadsafeDeathTestInChangedDir) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + + ChangeToRootDir(); + EXPECT_EXIT(_exit(1), testing::ExitedWithCode(1), ""); + + ChangeToRootDir(); + ASSERT_DEATH(_exit(1), ""); +} + +TEST_F(TestForDeathTest, MixedStyles) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + EXPECT_DEATH(_exit(1), ""); + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_DEATH(_exit(1), ""); +} + +# if GTEST_HAS_CLONE && GTEST_HAS_PTHREAD + +namespace { + +bool pthread_flag; + +void SetPthreadFlag() { + pthread_flag = true; +} + +} // namespace + +TEST_F(TestForDeathTest, DoesNotExecuteAtforkHooks) { + if (!testing::GTEST_FLAG(death_test_use_fork)) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + pthread_flag = false; + ASSERT_EQ(0, pthread_atfork(&SetPthreadFlag, NULL, NULL)); + ASSERT_DEATH(_exit(1), ""); + ASSERT_FALSE(pthread_flag); + } +} + +# endif // GTEST_HAS_CLONE && GTEST_HAS_PTHREAD + +// Tests that a method of another class can be used in a death test. +TEST_F(TestForDeathTest, MethodOfAnotherClass) { + const MayDie x(true); + ASSERT_DEATH(x.MemberFunction(), "MayDie\\:\\:MemberFunction"); +} + +// Tests that a global function can be used in a death test. +TEST_F(TestForDeathTest, GlobalFunction) { + EXPECT_DEATH(GlobalFunction(), "GlobalFunction"); +} + +// Tests that any value convertible to an RE works as a second +// argument to EXPECT_DEATH. +TEST_F(TestForDeathTest, AcceptsAnythingConvertibleToRE) { + static const char regex_c_str[] = "GlobalFunction"; + EXPECT_DEATH(GlobalFunction(), regex_c_str); + + const testing::internal::RE regex(regex_c_str); + EXPECT_DEATH(GlobalFunction(), regex); + +# if GTEST_HAS_GLOBAL_STRING + + const ::string regex_str(regex_c_str); + EXPECT_DEATH(GlobalFunction(), regex_str); + +# endif // GTEST_HAS_GLOBAL_STRING + +# if !GTEST_USES_PCRE + + const ::std::string regex_std_str(regex_c_str); + EXPECT_DEATH(GlobalFunction(), regex_std_str); + +# endif // !GTEST_USES_PCRE +} + +// Tests that a non-void function can be used in a death test. +TEST_F(TestForDeathTest, NonVoidFunction) { + ASSERT_DEATH(NonVoidFunction(), "NonVoidFunction"); +} + +// Tests that functions that take parameter(s) can be used in a death test. +TEST_F(TestForDeathTest, FunctionWithParameter) { + EXPECT_DEATH(DieIf(true), "DieIf\\(\\)"); + EXPECT_DEATH(DieIfLessThan(2, 3), "DieIfLessThan"); +} + +// Tests that ASSERT_DEATH can be used outside a TEST, TEST_F, or test fixture. +TEST_F(TestForDeathTest, OutsideFixture) { + DeathTestSubroutine(); +} + +// Tests that death tests can be done inside a loop. +TEST_F(TestForDeathTest, InsideLoop) { + for (int i = 0; i < 5; i++) { + EXPECT_DEATH(DieIfLessThan(-1, i), "DieIfLessThan") << "where i == " << i; + } +} + +// Tests that a compound statement can be used in a death test. +TEST_F(TestForDeathTest, CompoundStatement) { + EXPECT_DEATH({ // NOLINT + const int x = 2; + const int y = x + 1; + DieIfLessThan(x, y); + }, + "DieIfLessThan"); +} + +// Tests that code that doesn't die causes a death test to fail. +TEST_F(TestForDeathTest, DoesNotDie) { + EXPECT_NONFATAL_FAILURE(EXPECT_DEATH(DieIf(false), "DieIf"), + "failed to die"); +} + +// Tests that a death test fails when the error message isn't expected. +TEST_F(TestForDeathTest, ErrorMessageMismatch) { + EXPECT_NONFATAL_FAILURE({ // NOLINT + EXPECT_DEATH(DieIf(true), "DieIfLessThan") << "End of death test message."; + }, "died but not with expected error"); +} + +// On exit, *aborted will be true iff the EXPECT_DEATH() statement +// aborted the function. +void ExpectDeathTestHelper(bool* aborted) { + *aborted = true; + EXPECT_DEATH(DieIf(false), "DieIf"); // This assertion should fail. + *aborted = false; +} + +// Tests that EXPECT_DEATH doesn't abort the test on failure. +TEST_F(TestForDeathTest, EXPECT_DEATH) { + bool aborted = true; + EXPECT_NONFATAL_FAILURE(ExpectDeathTestHelper(&aborted), + "failed to die"); + EXPECT_FALSE(aborted); +} + +// Tests that ASSERT_DEATH does abort the test on failure. +TEST_F(TestForDeathTest, ASSERT_DEATH) { + static bool aborted; + EXPECT_FATAL_FAILURE({ // NOLINT + aborted = true; + ASSERT_DEATH(DieIf(false), "DieIf"); // This assertion should fail. + aborted = false; + }, "failed to die"); + EXPECT_TRUE(aborted); +} + +// Tests that EXPECT_DEATH evaluates the arguments exactly once. +TEST_F(TestForDeathTest, SingleEvaluation) { + int x = 3; + EXPECT_DEATH(DieIf((++x) == 4), "DieIf"); + + const char* regex = "DieIf"; + const char* regex_save = regex; + EXPECT_DEATH(DieIfLessThan(3, 4), regex++); + EXPECT_EQ(regex_save + 1, regex); +} + +// Tests that run-away death tests are reported as failures. +TEST_F(TestForDeathTest, RunawayIsFailure) { + EXPECT_NONFATAL_FAILURE(EXPECT_DEATH(static_cast<void>(0), "Foo"), + "failed to die."); +} + +// Tests that death tests report executing 'return' in the statement as +// failure. +TEST_F(TestForDeathTest, ReturnIsFailure) { + EXPECT_FATAL_FAILURE(ASSERT_DEATH(return, "Bar"), + "illegal return in test statement."); +} + +// Tests that EXPECT_DEBUG_DEATH works as expected, that is, you can stream a +// message to it, and in debug mode it: +// 1. Asserts on death. +// 2. Has no side effect. +// +// And in opt mode, it: +// 1. Has side effects but does not assert. +TEST_F(TestForDeathTest, TestExpectDebugDeath) { + int sideeffect = 0; + + // Put the regex in a local variable to make sure we don't get an "unused" + // warning in opt mode. + const char* regex = "death.*DieInDebugElse12"; + + EXPECT_DEBUG_DEATH(DieInDebugElse12(&sideeffect), regex) + << "Must accept a streamed message"; + +# ifdef NDEBUG + + // Checks that the assignment occurs in opt mode (sideeffect). + EXPECT_EQ(12, sideeffect); + +# else + + // Checks that the assignment does not occur in dbg mode (no sideeffect). + EXPECT_EQ(0, sideeffect); + +# endif +} + +// Tests that ASSERT_DEBUG_DEATH works as expected, that is, you can stream a +// message to it, and in debug mode it: +// 1. Asserts on death. +// 2. Has no side effect. +// +// And in opt mode, it: +// 1. Has side effects but does not assert. +TEST_F(TestForDeathTest, TestAssertDebugDeath) { + int sideeffect = 0; + + ASSERT_DEBUG_DEATH(DieInDebugElse12(&sideeffect), "death.*DieInDebugElse12") + << "Must accept a streamed message"; + +# ifdef NDEBUG + + // Checks that the assignment occurs in opt mode (sideeffect). + EXPECT_EQ(12, sideeffect); + +# else + + // Checks that the assignment does not occur in dbg mode (no sideeffect). + EXPECT_EQ(0, sideeffect); + +# endif +} + +# ifndef NDEBUG + +void ExpectDebugDeathHelper(bool* aborted) { + *aborted = true; + EXPECT_DEBUG_DEATH(return, "") << "This is expected to fail."; + *aborted = false; +} + +# if GTEST_OS_WINDOWS +TEST(PopUpDeathTest, DoesNotShowPopUpOnAbort) { + printf("This test should be considered failing if it shows " + "any pop-up dialogs.\n"); + fflush(stdout); + + EXPECT_DEATH({ + testing::GTEST_FLAG(catch_exceptions) = false; + abort(); + }, ""); +} +# endif // GTEST_OS_WINDOWS + +// Tests that EXPECT_DEBUG_DEATH in debug mode does not abort +// the function. +TEST_F(TestForDeathTest, ExpectDebugDeathDoesNotAbort) { + bool aborted = true; + EXPECT_NONFATAL_FAILURE(ExpectDebugDeathHelper(&aborted), ""); + EXPECT_FALSE(aborted); +} + +void AssertDebugDeathHelper(bool* aborted) { + *aborted = true; + GTEST_LOG_(INFO) << "Before ASSERT_DEBUG_DEATH"; + ASSERT_DEBUG_DEATH(GTEST_LOG_(INFO) << "In ASSERT_DEBUG_DEATH"; return, "") + << "This is expected to fail."; + GTEST_LOG_(INFO) << "After ASSERT_DEBUG_DEATH"; + *aborted = false; +} + +// Tests that ASSERT_DEBUG_DEATH in debug mode aborts the function on +// failure. +TEST_F(TestForDeathTest, AssertDebugDeathAborts) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts2) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts3) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts4) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts5) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts6) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts7) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts8) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts9) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +TEST_F(TestForDeathTest, AssertDebugDeathAborts10) { + static bool aborted; + aborted = false; + EXPECT_FATAL_FAILURE(AssertDebugDeathHelper(&aborted), ""); + EXPECT_TRUE(aborted); +} + +# endif // _NDEBUG + +// Tests the *_EXIT family of macros, using a variety of predicates. +static void TestExitMacros() { + EXPECT_EXIT(_exit(1), testing::ExitedWithCode(1), ""); + ASSERT_EXIT(_exit(42), testing::ExitedWithCode(42), ""); + +# if GTEST_OS_WINDOWS + + // Of all signals effects on the process exit code, only those of SIGABRT + // are documented on Windows. + // See https://msdn.microsoft.com/en-us/query-bi/m/dwwzkt4c. + EXPECT_EXIT(raise(SIGABRT), testing::ExitedWithCode(3), "") << "b_ar"; + +# elif !GTEST_OS_FUCHSIA + + // Fuchsia has no unix signals. + EXPECT_EXIT(raise(SIGKILL), testing::KilledBySignal(SIGKILL), "") << "foo"; + ASSERT_EXIT(raise(SIGUSR2), testing::KilledBySignal(SIGUSR2), "") << "bar"; + + EXPECT_FATAL_FAILURE({ // NOLINT + ASSERT_EXIT(_exit(0), testing::KilledBySignal(SIGSEGV), "") + << "This failure is expected, too."; + }, "This failure is expected, too."); + +# endif // GTEST_OS_WINDOWS + + EXPECT_NONFATAL_FAILURE({ // NOLINT + EXPECT_EXIT(raise(SIGSEGV), testing::ExitedWithCode(0), "") + << "This failure is expected."; + }, "This failure is expected."); +} + +TEST_F(TestForDeathTest, ExitMacros) { + TestExitMacros(); +} + +TEST_F(TestForDeathTest, ExitMacrosUsingFork) { + testing::GTEST_FLAG(death_test_use_fork) = true; + TestExitMacros(); +} + +TEST_F(TestForDeathTest, InvalidStyle) { + testing::GTEST_FLAG(death_test_style) = "rococo"; + EXPECT_NONFATAL_FAILURE({ // NOLINT + EXPECT_DEATH(_exit(0), "") << "This failure is expected."; + }, "This failure is expected."); +} + +TEST_F(TestForDeathTest, DeathTestFailedOutput) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_NONFATAL_FAILURE( + EXPECT_DEATH(DieWithMessage("death\n"), + "expected message"), + "Actual msg:\n" + "[ DEATH ] death\n"); +} + +TEST_F(TestForDeathTest, DeathTestUnexpectedReturnOutput) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_NONFATAL_FAILURE( + EXPECT_DEATH({ + fprintf(stderr, "returning\n"); + fflush(stderr); + return; + }, ""), + " Result: illegal return in test statement.\n" + " Error msg:\n" + "[ DEATH ] returning\n"); +} + +TEST_F(TestForDeathTest, DeathTestBadExitCodeOutput) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_NONFATAL_FAILURE( + EXPECT_EXIT(DieWithMessage("exiting with rc 1\n"), + testing::ExitedWithCode(3), + "expected message"), + " Result: died but not with expected exit code:\n" + " Exited with exit status 1\n" + "Actual msg:\n" + "[ DEATH ] exiting with rc 1\n"); +} + +TEST_F(TestForDeathTest, DeathTestMultiLineMatchFail) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_NONFATAL_FAILURE( + EXPECT_DEATH(DieWithMessage("line 1\nline 2\nline 3\n"), + "line 1\nxyz\nline 3\n"), + "Actual msg:\n" + "[ DEATH ] line 1\n" + "[ DEATH ] line 2\n" + "[ DEATH ] line 3\n"); +} + +TEST_F(TestForDeathTest, DeathTestMultiLineMatchPass) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_DEATH(DieWithMessage("line 1\nline 2\nline 3\n"), + "line 1\nline 2\nline 3\n"); +} + +// A DeathTestFactory that returns MockDeathTests. +class MockDeathTestFactory : public DeathTestFactory { + public: + MockDeathTestFactory(); + virtual bool Create(const char* statement, + const ::testing::internal::RE* regex, + const char* file, int line, DeathTest** test); + + // Sets the parameters for subsequent calls to Create. + void SetParameters(bool create, DeathTest::TestRole role, + int status, bool passed); + + // Accessors. + int AssumeRoleCalls() const { return assume_role_calls_; } + int WaitCalls() const { return wait_calls_; } + size_t PassedCalls() const { return passed_args_.size(); } + bool PassedArgument(int n) const { return passed_args_[n]; } + size_t AbortCalls() const { return abort_args_.size(); } + DeathTest::AbortReason AbortArgument(int n) const { + return abort_args_[n]; + } + bool TestDeleted() const { return test_deleted_; } + + private: + friend class MockDeathTest; + // If true, Create will return a MockDeathTest; otherwise it returns + // NULL. + bool create_; + // The value a MockDeathTest will return from its AssumeRole method. + DeathTest::TestRole role_; + // The value a MockDeathTest will return from its Wait method. + int status_; + // The value a MockDeathTest will return from its Passed method. + bool passed_; + + // Number of times AssumeRole was called. + int assume_role_calls_; + // Number of times Wait was called. + int wait_calls_; + // The arguments to the calls to Passed since the last call to + // SetParameters. + std::vector<bool> passed_args_; + // The arguments to the calls to Abort since the last call to + // SetParameters. + std::vector<DeathTest::AbortReason> abort_args_; + // True if the last MockDeathTest returned by Create has been + // deleted. + bool test_deleted_; +}; + + +// A DeathTest implementation useful in testing. It returns values set +// at its creation from its various inherited DeathTest methods, and +// reports calls to those methods to its parent MockDeathTestFactory +// object. +class MockDeathTest : public DeathTest { + public: + MockDeathTest(MockDeathTestFactory *parent, + TestRole role, int status, bool passed) : + parent_(parent), role_(role), status_(status), passed_(passed) { + } + virtual ~MockDeathTest() { + parent_->test_deleted_ = true; + } + virtual TestRole AssumeRole() { + ++parent_->assume_role_calls_; + return role_; + } + virtual int Wait() { + ++parent_->wait_calls_; + return status_; + } + virtual bool Passed(bool exit_status_ok) { + parent_->passed_args_.push_back(exit_status_ok); + return passed_; + } + virtual void Abort(AbortReason reason) { + parent_->abort_args_.push_back(reason); + } + + private: + MockDeathTestFactory* const parent_; + const TestRole role_; + const int status_; + const bool passed_; +}; + + +// MockDeathTestFactory constructor. +MockDeathTestFactory::MockDeathTestFactory() + : create_(true), + role_(DeathTest::OVERSEE_TEST), + status_(0), + passed_(true), + assume_role_calls_(0), + wait_calls_(0), + passed_args_(), + abort_args_() { +} + + +// Sets the parameters for subsequent calls to Create. +void MockDeathTestFactory::SetParameters(bool create, + DeathTest::TestRole role, + int status, bool passed) { + create_ = create; + role_ = role; + status_ = status; + passed_ = passed; + + assume_role_calls_ = 0; + wait_calls_ = 0; + passed_args_.clear(); + abort_args_.clear(); +} + + +// Sets test to NULL (if create_ is false) or to the address of a new +// MockDeathTest object with parameters taken from the last call +// to SetParameters (if create_ is true). Always returns true. +bool MockDeathTestFactory::Create(const char* /*statement*/, + const ::testing::internal::RE* /*regex*/, + const char* /*file*/, + int /*line*/, + DeathTest** test) { + test_deleted_ = false; + if (create_) { + *test = new MockDeathTest(this, role_, status_, passed_); + } else { + *test = NULL; + } + return true; +} + +// A test fixture for testing the logic of the GTEST_DEATH_TEST_ macro. +// It installs a MockDeathTestFactory that is used for the duration +// of the test case. +class MacroLogicDeathTest : public testing::Test { + protected: + static testing::internal::ReplaceDeathTestFactory* replacer_; + static MockDeathTestFactory* factory_; + + static void SetUpTestCase() { + factory_ = new MockDeathTestFactory; + replacer_ = new testing::internal::ReplaceDeathTestFactory(factory_); + } + + static void TearDownTestCase() { + delete replacer_; + replacer_ = NULL; + delete factory_; + factory_ = NULL; + } + + // Runs a death test that breaks the rules by returning. Such a death + // test cannot be run directly from a test routine that uses a + // MockDeathTest, or the remainder of the routine will not be executed. + static void RunReturningDeathTest(bool* flag) { + ASSERT_DEATH({ // NOLINT + *flag = true; + return; + }, ""); + } +}; + +testing::internal::ReplaceDeathTestFactory* MacroLogicDeathTest::replacer_ + = NULL; +MockDeathTestFactory* MacroLogicDeathTest::factory_ = NULL; + + +// Test that nothing happens when the factory doesn't return a DeathTest: +TEST_F(MacroLogicDeathTest, NothingHappens) { + bool flag = false; + factory_->SetParameters(false, DeathTest::OVERSEE_TEST, 0, true); + EXPECT_DEATH(flag = true, ""); + EXPECT_FALSE(flag); + EXPECT_EQ(0, factory_->AssumeRoleCalls()); + EXPECT_EQ(0, factory_->WaitCalls()); + EXPECT_EQ(0U, factory_->PassedCalls()); + EXPECT_EQ(0U, factory_->AbortCalls()); + EXPECT_FALSE(factory_->TestDeleted()); +} + +// Test that the parent process doesn't run the death test code, +// and that the Passed method returns false when the (simulated) +// child process exits with status 0: +TEST_F(MacroLogicDeathTest, ChildExitsSuccessfully) { + bool flag = false; + factory_->SetParameters(true, DeathTest::OVERSEE_TEST, 0, true); + EXPECT_DEATH(flag = true, ""); + EXPECT_FALSE(flag); + EXPECT_EQ(1, factory_->AssumeRoleCalls()); + EXPECT_EQ(1, factory_->WaitCalls()); + ASSERT_EQ(1U, factory_->PassedCalls()); + EXPECT_FALSE(factory_->PassedArgument(0)); + EXPECT_EQ(0U, factory_->AbortCalls()); + EXPECT_TRUE(factory_->TestDeleted()); +} + +// Tests that the Passed method was given the argument "true" when +// the (simulated) child process exits with status 1: +TEST_F(MacroLogicDeathTest, ChildExitsUnsuccessfully) { + bool flag = false; + factory_->SetParameters(true, DeathTest::OVERSEE_TEST, 1, true); + EXPECT_DEATH(flag = true, ""); + EXPECT_FALSE(flag); + EXPECT_EQ(1, factory_->AssumeRoleCalls()); + EXPECT_EQ(1, factory_->WaitCalls()); + ASSERT_EQ(1U, factory_->PassedCalls()); + EXPECT_TRUE(factory_->PassedArgument(0)); + EXPECT_EQ(0U, factory_->AbortCalls()); + EXPECT_TRUE(factory_->TestDeleted()); +} + +// Tests that the (simulated) child process executes the death test +// code, and is aborted with the correct AbortReason if it +// executes a return statement. +TEST_F(MacroLogicDeathTest, ChildPerformsReturn) { + bool flag = false; + factory_->SetParameters(true, DeathTest::EXECUTE_TEST, 0, true); + RunReturningDeathTest(&flag); + EXPECT_TRUE(flag); + EXPECT_EQ(1, factory_->AssumeRoleCalls()); + EXPECT_EQ(0, factory_->WaitCalls()); + EXPECT_EQ(0U, factory_->PassedCalls()); + EXPECT_EQ(1U, factory_->AbortCalls()); + EXPECT_EQ(DeathTest::TEST_ENCOUNTERED_RETURN_STATEMENT, + factory_->AbortArgument(0)); + EXPECT_TRUE(factory_->TestDeleted()); +} + +// Tests that the (simulated) child process is aborted with the +// correct AbortReason if it does not die. +TEST_F(MacroLogicDeathTest, ChildDoesNotDie) { + bool flag = false; + factory_->SetParameters(true, DeathTest::EXECUTE_TEST, 0, true); + EXPECT_DEATH(flag = true, ""); + EXPECT_TRUE(flag); + EXPECT_EQ(1, factory_->AssumeRoleCalls()); + EXPECT_EQ(0, factory_->WaitCalls()); + EXPECT_EQ(0U, factory_->PassedCalls()); + // This time there are two calls to Abort: one since the test didn't + // die, and another from the ReturnSentinel when it's destroyed. The + // sentinel normally isn't destroyed if a test doesn't die, since + // _exit(2) is called in that case by ForkingDeathTest, but not by + // our MockDeathTest. + ASSERT_EQ(2U, factory_->AbortCalls()); + EXPECT_EQ(DeathTest::TEST_DID_NOT_DIE, + factory_->AbortArgument(0)); + EXPECT_EQ(DeathTest::TEST_ENCOUNTERED_RETURN_STATEMENT, + factory_->AbortArgument(1)); + EXPECT_TRUE(factory_->TestDeleted()); +} + +// Tests that a successful death test does not register a successful +// test part. +TEST(SuccessRegistrationDeathTest, NoSuccessPart) { + EXPECT_DEATH(_exit(1), ""); + EXPECT_EQ(0, GetUnitTestImpl()->current_test_result()->total_part_count()); +} + +TEST(StreamingAssertionsDeathTest, DeathTest) { + EXPECT_DEATH(_exit(1), "") << "unexpected failure"; + ASSERT_DEATH(_exit(1), "") << "unexpected failure"; + EXPECT_NONFATAL_FAILURE({ // NOLINT + EXPECT_DEATH(_exit(0), "") << "expected failure"; + }, "expected failure"); + EXPECT_FATAL_FAILURE({ // NOLINT + ASSERT_DEATH(_exit(0), "") << "expected failure"; + }, "expected failure"); +} + +// Tests that GetLastErrnoDescription returns an empty string when the +// last error is 0 and non-empty string when it is non-zero. +TEST(GetLastErrnoDescription, GetLastErrnoDescriptionWorks) { + errno = ENOENT; + EXPECT_STRNE("", GetLastErrnoDescription().c_str()); + errno = 0; + EXPECT_STREQ("", GetLastErrnoDescription().c_str()); +} + +# if GTEST_OS_WINDOWS +TEST(AutoHandleTest, AutoHandleWorks) { + HANDLE handle = ::CreateEvent(NULL, FALSE, FALSE, NULL); + ASSERT_NE(INVALID_HANDLE_VALUE, handle); + + // Tests that the AutoHandle is correctly initialized with a handle. + testing::internal::AutoHandle auto_handle(handle); + EXPECT_EQ(handle, auto_handle.Get()); + + // Tests that Reset assigns INVALID_HANDLE_VALUE. + // Note that this cannot verify whether the original handle is closed. + auto_handle.Reset(); + EXPECT_EQ(INVALID_HANDLE_VALUE, auto_handle.Get()); + + // Tests that Reset assigns the new handle. + // Note that this cannot verify whether the original handle is closed. + handle = ::CreateEvent(NULL, FALSE, FALSE, NULL); + ASSERT_NE(INVALID_HANDLE_VALUE, handle); + auto_handle.Reset(handle); + EXPECT_EQ(handle, auto_handle.Get()); + + // Tests that AutoHandle contains INVALID_HANDLE_VALUE by default. + testing::internal::AutoHandle auto_handle2; + EXPECT_EQ(INVALID_HANDLE_VALUE, auto_handle2.Get()); +} +# endif // GTEST_OS_WINDOWS + +# if GTEST_OS_WINDOWS +typedef unsigned __int64 BiggestParsable; +typedef signed __int64 BiggestSignedParsable; +# else +typedef unsigned long long BiggestParsable; +typedef signed long long BiggestSignedParsable; +# endif // GTEST_OS_WINDOWS + +// We cannot use std::numeric_limits<T>::max() as it clashes with the +// max() macro defined by <windows.h>. +const BiggestParsable kBiggestParsableMax = ULLONG_MAX; +const BiggestSignedParsable kBiggestSignedParsableMax = LLONG_MAX; + +TEST(ParseNaturalNumberTest, RejectsInvalidFormat) { + BiggestParsable result = 0; + + // Rejects non-numbers. + EXPECT_FALSE(ParseNaturalNumber("non-number string", &result)); + + // Rejects numbers with whitespace prefix. + EXPECT_FALSE(ParseNaturalNumber(" 123", &result)); + + // Rejects negative numbers. + EXPECT_FALSE(ParseNaturalNumber("-123", &result)); + + // Rejects numbers starting with a plus sign. + EXPECT_FALSE(ParseNaturalNumber("+123", &result)); + errno = 0; +} + +TEST(ParseNaturalNumberTest, RejectsOverflownNumbers) { + BiggestParsable result = 0; + + EXPECT_FALSE(ParseNaturalNumber("99999999999999999999999", &result)); + + signed char char_result = 0; + EXPECT_FALSE(ParseNaturalNumber("200", &char_result)); + errno = 0; +} + +TEST(ParseNaturalNumberTest, AcceptsValidNumbers) { + BiggestParsable result = 0; + + result = 0; + ASSERT_TRUE(ParseNaturalNumber("123", &result)); + EXPECT_EQ(123U, result); + + // Check 0 as an edge case. + result = 1; + ASSERT_TRUE(ParseNaturalNumber("0", &result)); + EXPECT_EQ(0U, result); + + result = 1; + ASSERT_TRUE(ParseNaturalNumber("00000", &result)); + EXPECT_EQ(0U, result); +} + +TEST(ParseNaturalNumberTest, AcceptsTypeLimits) { + Message msg; + msg << kBiggestParsableMax; + + BiggestParsable result = 0; + EXPECT_TRUE(ParseNaturalNumber(msg.GetString(), &result)); + EXPECT_EQ(kBiggestParsableMax, result); + + Message msg2; + msg2 << kBiggestSignedParsableMax; + + BiggestSignedParsable signed_result = 0; + EXPECT_TRUE(ParseNaturalNumber(msg2.GetString(), &signed_result)); + EXPECT_EQ(kBiggestSignedParsableMax, signed_result); + + Message msg3; + msg3 << INT_MAX; + + int int_result = 0; + EXPECT_TRUE(ParseNaturalNumber(msg3.GetString(), &int_result)); + EXPECT_EQ(INT_MAX, int_result); + + Message msg4; + msg4 << UINT_MAX; + + unsigned int uint_result = 0; + EXPECT_TRUE(ParseNaturalNumber(msg4.GetString(), &uint_result)); + EXPECT_EQ(UINT_MAX, uint_result); +} + +TEST(ParseNaturalNumberTest, WorksForShorterIntegers) { + short short_result = 0; + ASSERT_TRUE(ParseNaturalNumber("123", &short_result)); + EXPECT_EQ(123, short_result); + + signed char char_result = 0; + ASSERT_TRUE(ParseNaturalNumber("123", &char_result)); + EXPECT_EQ(123, char_result); +} + +# if GTEST_OS_WINDOWS +TEST(EnvironmentTest, HandleFitsIntoSizeT) { + // FIXME: Remove this test after this condition is verified + // in a static assertion in gtest-death-test.cc in the function + // GetStatusFileDescriptor. + ASSERT_TRUE(sizeof(HANDLE) <= sizeof(size_t)); +} +# endif // GTEST_OS_WINDOWS + +// Tests that EXPECT_DEATH_IF_SUPPORTED/ASSERT_DEATH_IF_SUPPORTED trigger +// failures when death tests are available on the system. +TEST(ConditionalDeathMacrosDeathTest, ExpectsDeathWhenDeathTestsAvailable) { + EXPECT_DEATH_IF_SUPPORTED(DieInside("CondDeathTestExpectMacro"), + "death inside CondDeathTestExpectMacro"); + ASSERT_DEATH_IF_SUPPORTED(DieInside("CondDeathTestAssertMacro"), + "death inside CondDeathTestAssertMacro"); + + // Empty statement will not crash, which must trigger a failure. + EXPECT_NONFATAL_FAILURE(EXPECT_DEATH_IF_SUPPORTED(;, ""), ""); + EXPECT_FATAL_FAILURE(ASSERT_DEATH_IF_SUPPORTED(;, ""), ""); +} + +TEST(InDeathTestChildDeathTest, ReportsDeathTestCorrectlyInFastStyle) { + testing::GTEST_FLAG(death_test_style) = "fast"; + EXPECT_FALSE(InDeathTestChild()); + EXPECT_DEATH({ + fprintf(stderr, InDeathTestChild() ? "Inside" : "Outside"); + fflush(stderr); + _exit(1); + }, "Inside"); +} + +TEST(InDeathTestChildDeathTest, ReportsDeathTestCorrectlyInThreadSafeStyle) { + testing::GTEST_FLAG(death_test_style) = "threadsafe"; + EXPECT_FALSE(InDeathTestChild()); + EXPECT_DEATH({ + fprintf(stderr, InDeathTestChild() ? "Inside" : "Outside"); + fflush(stderr); + _exit(1); + }, "Inside"); +} + +#else // !GTEST_HAS_DEATH_TEST follows + +using testing::internal::CaptureStderr; +using testing::internal::GetCapturedStderr; + +// Tests that EXPECT_DEATH_IF_SUPPORTED/ASSERT_DEATH_IF_SUPPORTED are still +// defined but do not trigger failures when death tests are not available on +// the system. +TEST(ConditionalDeathMacrosTest, WarnsWhenDeathTestsNotAvailable) { + // Empty statement will not crash, but that should not trigger a failure + // when death tests are not supported. + CaptureStderr(); + EXPECT_DEATH_IF_SUPPORTED(;, ""); + std::string output = GetCapturedStderr(); + ASSERT_TRUE(NULL != strstr(output.c_str(), + "Death tests are not supported on this platform")); + ASSERT_TRUE(NULL != strstr(output.c_str(), ";")); + + // The streamed message should not be printed as there is no test failure. + CaptureStderr(); + EXPECT_DEATH_IF_SUPPORTED(;, "") << "streamed message"; + output = GetCapturedStderr(); + ASSERT_TRUE(NULL == strstr(output.c_str(), "streamed message")); + + CaptureStderr(); + ASSERT_DEATH_IF_SUPPORTED(;, ""); // NOLINT + output = GetCapturedStderr(); + ASSERT_TRUE(NULL != strstr(output.c_str(), + "Death tests are not supported on this platform")); + ASSERT_TRUE(NULL != strstr(output.c_str(), ";")); + + CaptureStderr(); + ASSERT_DEATH_IF_SUPPORTED(;, "") << "streamed message"; // NOLINT + output = GetCapturedStderr(); + ASSERT_TRUE(NULL == strstr(output.c_str(), "streamed message")); +} + +void FuncWithAssert(int* n) { + ASSERT_DEATH_IF_SUPPORTED(return;, ""); + (*n)++; +} + +// Tests that ASSERT_DEATH_IF_SUPPORTED does not return from the current +// function (as ASSERT_DEATH does) if death tests are not supported. +TEST(ConditionalDeathMacrosTest, AssertDeatDoesNotReturnhIfUnsupported) { + int n = 0; + FuncWithAssert(&n); + EXPECT_EQ(1, n); +} + +#endif // !GTEST_HAS_DEATH_TEST + +// Tests that the death test macros expand to code which may or may not +// be followed by operator<<, and that in either case the complete text +// comprises only a single C++ statement. +// +// The syntax should work whether death tests are available or not. +TEST(ConditionalDeathMacrosSyntaxDeathTest, SingleStatement) { + if (AlwaysFalse()) + // This would fail if executed; this is a compilation test only + ASSERT_DEATH_IF_SUPPORTED(return, ""); + + if (AlwaysTrue()) + EXPECT_DEATH_IF_SUPPORTED(_exit(1), ""); + else + // This empty "else" branch is meant to ensure that EXPECT_DEATH + // doesn't expand into an "if" statement without an "else" + ; // NOLINT + + if (AlwaysFalse()) + ASSERT_DEATH_IF_SUPPORTED(return, "") << "did not die"; + + if (AlwaysFalse()) + ; // NOLINT + else + EXPECT_DEATH_IF_SUPPORTED(_exit(1), "") << 1 << 2 << 3; +} + +// Tests that conditional death test macros expand to code which interacts +// well with switch statements. +TEST(ConditionalDeathMacrosSyntaxDeathTest, SwitchStatement) { + // Microsoft compiler usually complains about switch statements without + // case labels. We suppress that warning for this test. + GTEST_DISABLE_MSC_WARNINGS_PUSH_(4065) + + switch (0) + default: + ASSERT_DEATH_IF_SUPPORTED(_exit(1), "") + << "exit in default switch handler"; + + switch (0) + case 0: + EXPECT_DEATH_IF_SUPPORTED(_exit(1), "") << "exit in switch case"; + + GTEST_DISABLE_MSC_WARNINGS_POP_() +} + +// Tests that a test case whose name ends with "DeathTest" works fine +// on Windows. +TEST(NotADeathTest, Test) { + SUCCEED(); +} |