Cannot mock destructors in Visual Studio 2015 C++

[eranpeer]

Cannot mock destructors in Visual Studio 2015 C++

[Gerark]

Hello, did you find any solution to this? I've a similar issue on visual studio 2013 but the crash happens on

        void *VirtualTableBase::getCookie(int index) {
            return _firstMethod[-2 - index];
        }

[tnovotny]

For me this is working. I am using the November 30 Update 1 and the MS testing tool. Test passes both x32 and x64. Dont't think its relevant, but OS is 8.1 Professional 64 bit.

[alexey-malov]

I have checked with Visual Studio 2015 update 3.
It crashes if the destructor is not the very first method of the interfaces:

If I place SomeMethod after the destructor, everything is OK:

	struct SomeInterface
	{
		virtual ~SomeInterface() = default;
		virtual void SomeMethod(int someParam) = 0;
	};

	void mock_virtual_dtor_with_when() {
		int a = 0;
		Mock<SomeInterface> mock;
		When(Dtor(mock)).Return().Do([&](){a++; });
		SomeInterface * i = &(mock.get());
		delete i; // do nothing
		delete i; // a++
		ASSERT_EQUAL(1, a);
	}

However, if I put SomeMethod above the destructor, it crashes:

	struct SomeInterface
	{
		virtual void SomeMethod(int someParam) = 0;
		virtual ~SomeInterface() = default;
	};
	void mock_virtual_dtor_with_when() {
		int a = 0;
		Mock<SomeInterface> mock;
		When(Dtor(mock)).Return().Do([&](){a++; });
		SomeInterface * i = &(mock.get());
		delete i; // do nothing
		delete i; // a++
		ASSERT_EQUAL(1, a);
	}

Error message is:

Exception thrown: read access violation.

invocationHandler was nullptr.

If there is a handler for this exception, the program may be safely continued.

Stack track is:

>	all_tests.exe!fakeit::MethodProxyCreator<void>::methodProxy(unsigned int id) Line 45	C++
 	all_tests.exe!fakeit::MethodProxyCreator<void>::methodProxyX<0>() Line 51	C++
 	all_tests.exe!fakeit::VirtualTable<DtorMocking::SomeInterface>::dtor(int __formal) Line 219	C++
 	all_tests.exe!DtorMocking::mock_virtual_dtor_with_when() Line 54	C++
 	all_tests.exe!tpunit::TestFixture::__do_tests(tpunit::TestFixture::fixture * f) Line 500	C++
 	all_tests.exe!tpunit::TestFixture::__do_run() Line 360	C++
 	all_tests.exe!tpunit::Tests::Run() Line 550	C++
 	all_tests.exe!main() Line 31	C++

[FranckRJ]

Should be fixed by #312, it will be available in FakeIt 2.3.3 or 2.4.0 depending on which is the first to be released.