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// 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. | |
// | |
// Author: wan@google.com (Zhanyong Wan) | |
// | |
// 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" | |
// Indicates that this translation unit is part of Google Test's | |
// implementation. It must come before gtest-internal-inl.h is | |
// included, or there will be a compiler error. This trick is to | |
// prevent a user from accidentally including gtest-internal-inl.h in | |
// his code. | |
# define GTEST_IMPLEMENTATION_ 1 | |
# include "src/gtest-internal-inl.h" | |
# undef GTEST_IMPLEMENTATION_ | |
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 | |
// 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 | |
// 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) { | |
// TODO(wan@google.com): <regex.h> doesn't support matching strings | |
// with embedded NUL characters - find a way to workaround it. | |
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. | |
# ifdef _MSC_VER | |
# pragma warning(push) | |
# pragma warning(disable: 4065) | |
# endif // _MSC_VER | |
switch (0) | |
default: | |
ASSERT_DEATH(_exit(1), "") << "exit in default switch handler"; | |
switch (0) | |
case 0: | |
EXPECT_DEATH(_exit(1), "") << "exit in switch case"; | |
# ifdef _MSC_VER | |
# pragma warning(pop) | |
# endif // _MSC_VER | |
} | |
// 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 | |
const ::std::string regex_std_str(regex_c_str); | |
EXPECT_DEATH(GlobalFunction(), regex_std_str); | |
} | |
// 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; | |
EXPECT_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 | |
} | |
// 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; | |
ASSERT_DEBUG_DEATH(return, "") << "This is expected to fail."; | |
*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); | |
} | |
# 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 http://msdn.microsoft.com/en-us/library/dwwzkt4c(VS.71).aspx. | |
EXPECT_EXIT(raise(SIGABRT), testing::ExitedWithCode(3), "") << "b_ar"; | |
# else | |
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_; } | |
int PassedCalls() const { return passed_args_.size(); } | |
bool PassedArgument(int n) const { return passed_args_[n]; } | |
int 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(0, factory_->PassedCalls()); | |
EXPECT_EQ(0, 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(1, factory_->PassedCalls()); | |
EXPECT_FALSE(factory_->PassedArgument(0)); | |
EXPECT_EQ(0, 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(1, factory_->PassedCalls()); | |
EXPECT_TRUE(factory_->PassedArgument(0)); | |
EXPECT_EQ(0, 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(0, factory_->PassedCalls()); | |
EXPECT_EQ(1, 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(0, 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(2, 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) { | |
// TODO(vladl@google.com): 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(;, ""), ""); | |
} | |
#else | |
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); | |
} | |
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"); | |
} | |
#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. | |
#ifdef _MSC_VER | |
# pragma warning(push) | |
# pragma warning(disable: 4065) | |
#endif // _MSC_VER | |
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"; | |
#ifdef _MSC_VER | |
# pragma warning(pop) | |
#endif // _MSC_VER | |
} | |
// Tests that a test case whose name ends with "DeathTest" works fine | |
// on Windows. | |
TEST(NotADeathTest, Test) { | |
SUCCEED(); | |
} |