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CentOS 6.9, G ++ 6.3.1에서 GTest 1.8을 사용하고 있습니다. 특정 메소드가있는 모의 객체에서 EXPECT_CALL을 호출하면 segfault를 트리거 할 수 있지만 다른 스레드는 같은 모의 객체에서 해당 메소드를 호출합니다.GTEST를 mock 및 multithreading과 함께 사용할 때 레이스 조건 segfault가 발생했습니다. 또 다른 기대치가 같은 방법으로 작동하는 동안 gtest EXPECT_CALL을 사용할 때 레이스 조건 segfault가 발생합니다.
#include <gmock/gmock.h>
#include <thread>
#include <atomic>
class MyMock
{
public:
MOCK_METHOD1(myMethod, void(int n));
};
TEST(MyClassTest, one)
{
MyMock mock;
std::atomic<int> g_arg(5);
bool keepRunning = true;
bool isRunning = false;
bool canEnd = false;
EXPECT_CALL(mock, myMethod(5))
.Times(::testing::AtLeast(1))
.WillRepeatedly(::testing::InvokeWithoutArgs([&isRunning](){ isRunning = true; }));
std::thread t1([&mock, &keepRunning, &g_arg]()
{
while (keepRunning)
{
mock.myMethod(g_arg.load());
}
});
while (!isRunning) {}
EXPECT_CALL(mock, myMethod(6))
.Times(::testing::AtLeast(1))
.WillRepeatedly(::testing::InvokeWithoutArgs([&canEnd](){ canEnd = true; }));
g_arg.store(6);
while (!canEnd) {}
keepRunning = false;
t1.join();
}
그것은 컴파일 할 수 있습니다 : g++ -lpthread -lgmock_main -g Gtest_test.cpp -o Gtest_test
때때로 문제가 때로는 더 문제를 몇 백 개 실행을 즉시 발생 여기에 최소한의 예입니다. 나는 이런 식으로 실행되었습니다
Repeating all tests (iteration 10) . . .
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from MyClassTest
[ RUN ] MyClassTest.one
[New Thread 0x7ffff6d8b700 (LWP 14092)]
Thread 11 "Gtest_test" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff6d8b700 (LWP 14092)]
0x00007ffff7bc8470 in pthread_mutex_lock() from /lib64/libpthread.so.0
Missing separate debuginfos, use: debuginfo-install libgcc-4.4.7-18.el6.x86_64 libstdc++-4.4.7-18.el6.x86_64
(gdb) bt
#0 0x00007ffff7bc8470 in pthread_mutex_lock() from /lib64/libpthread.so.0
#1 0x0000000000407b5b in testing::internal::MutexBase::Lock (this=0x98) at /usr/include/gtest/internal/gtest-port.h:1928
#2 0x0000000000407da8 in testing::internal::GTestMutexLock::GTestMutexLock (this=0x7ffff6d8a540, mutex=0x98) at /usr/include/gtest/internal/gtest-port.h:1999
#3 0x00007ffff7979628 in testing::internal::ExpectationBase::CheckActionCountIfNotDone() const() from /usr/lib64/libgmock_main.so
#4 0x000000000040ce9c in testing::internal::TypedExpectation<void (int)>::ShouldHandleArguments(std::tuple<int> const&) const (this=0x0, args=std::tuple containing = {...}) at /usr/include/gmock/gmock-spec-builders.h:1100
#5 0x000000000040c91a in testing::internal::FunctionMockerBase<void (int)>::FindMatchingExpectationLocked(std::tuple<int> const&) const (this=0x7fffffffd850, args=std::tuple containing = {...})
at /usr/include/gmock/gmock-spec-builders.h:1723
#6 0x000000000040c569 in testing::internal::FunctionMockerBase<void (int)>::UntypedFindMatchingExpectation(void const*, void const**, bool*, std::ostream*, std::ostream*) (this=0x7fffffffd850, untyped_args=0x7ffff6d8ad90,
untyped_action=0x7ffff6d8a7e8, is_excessive=0x7ffff6d8ac4f, what=0x7ffff6d8aae0, why=0x7ffff6d8a970) at /usr/include/gmock/gmock-spec-builders.h:1687
#7 0x00007ffff797a212 in testing::internal::UntypedFunctionMockerBase::UntypedInvokeWith(void const*)() from /usr/lib64/libgmock_main.so
#8 0x00000000004096cd in testing::internal::FunctionMockerBase<void (int)>::InvokeWith(std::tuple<int> const&) (this=0x7fffffffd850, args=std::tuple containing = {...}) at /usr/include/gmock/gmock-spec-builders.h:1585
#9 0x0000000000408ba1 in testing::internal::FunctionMocker<void (int)>::Invoke(int) (this=0x7fffffffd850, a1=5) at /usr/include/gmock/gmock-generated-function-mockers.h:101
#10 0x00000000004087a8 in MyMock::myMethod (this=0x7fffffffd850, gmock_a1=5) at Gtest_test.cpp:11
#11 0x0000000000406e25 in MyClassTest_one_Test::<lambda()>::operator()(void) const (__closure=0x618d48) at Gtest_test.cpp:28
#12 0x0000000000407a86 in std::_Bind_simple<MyClassTest_one_Test::TestBody()::<lambda()>()>::_M_invoke<>(std::_Index_tuple<>) (this=0x618d48) at /opt/rh/devtoolset-6/root/usr/include/c++/6.3.1/functional:1391
#13 0x00000000004079e7 in std::_Bind_simple<MyClassTest_one_Test::TestBody()::<lambda()>()>::operator()(void) (this=0x618d48) at /opt/rh/devtoolset-6/root/usr/include/c++/6.3.1/functional:1380
#14 0x0000000000407972 in std::thread::_State_impl<std::_Bind_simple<MyClassTest_one_Test::TestBody()::<lambda()>()> >::_M_run(void) (this=0x618d40) at /opt/rh/devtoolset-6/root/usr/include/c++/6.3.1/thread:197
#15 0x000000000040e33f in execute_native_thread_routine()
#16 0x00007ffff7bc6aa1 in start_thread() from /lib64/libpthread.so.0
#17 0x00007ffff6e74bcd in clone() from /lib64/libc.so.6
(gdb) info threads
Id Target Id Frame
1 Thread 0x7ffff7fdc720 (LWP 14079) "Gtest_test" MyClassTest_one_Test::TestBody (this=0x618510) at Gtest_test.cpp:36
* 11 Thread 0x7ffff6d8b700 (LWP 14092) "Gtest_test" 0x00007ffff7bc8470 in pthread_mutex_lock() from /lib64/libpthread.so.0
(gdb) t 1
[Switching to thread 1 (Thread 0x7ffff7fdc720 (LWP 14079))]
#0 MyClassTest_one_Test::TestBody (this=0x618510) at Gtest_test.cpp:36
36 while (!canEnd) {}
(gdb) bt
#0 MyClassTest_one_Test::TestBody (this=0x618510) at Gtest_test.cpp:36
#1 0x00007ffff7968edf in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)() from /usr/lib64/libgmock_main.so
#2 0x00007ffff7962cd4 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)() from /usr/lib64/libgmock_main.so
#3 0x00007ffff7947a7c in testing::Test::Run()() from /usr/lib64/libgmock_main.so
#4 0x00007ffff7948326 in testing::TestInfo::Run()() from /usr/lib64/libgmock_main.so
#5 0x00007ffff79489ff in testing::TestCase::Run()() from /usr/lib64/libgmock_main.so
#6 0x00007ffff794f5c9 in testing::internal::UnitTestImpl::RunAllTests()() from /usr/lib64/libgmock_main.so
#7 0x00007ffff796a2f2 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)()
from /usr/lib64/libgmock_main.so
#8 0x00007ffff7963a48 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)()
from /usr/lib64/libgmock_main.so
#9 0x00007ffff794e17f in testing::UnitTest::Run()() from /usr/lib64/libgmock_main.so
#10 0x00007ffff798702e in RUN_ALL_TESTS()() from /usr/lib64/libgmock_main.so
#11 0x00007ffff7986fbd in main() from /usr/lib64/libgmock_main.so
#12 0x00007ffff6daad1d in __libc_start_main() from /lib64/libc.so.6
#13 0x0000000000406cc9 in _start()
를 내가 전에 내 모든 EXPECT_CALLs을 추가하여 문제를 해결할 수 있음을 알고 있어요 : 여기 gdb --args ./Gtest_test --gtest_repeat=-1 --gtest_break_on_failure
는 세그멘트 폴트가 발생 GDB, 일부 출력 나는 실을 시작하지만 다른 사람이 그것을 겪었습니까? 진짜 버그입니까?
감사합니다. 설명서에서 발견하지 못했습니다. – Obiphil