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google/googletest/dist/googletest/test/googletest-death-test-test.cc
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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. | |||||
// | |||||
// 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(); | |||||
} |