Compile error when I #include "gmock/gmock.h"

Question

I'm attempting to integrate googlemock into my tests. I had already successfully built and run tests on googletest, and now am trying to incrementally add the gmock functionality into the tests as well, but I've hit a compile error that I utterly do not understand.

I am not attempting to use or define mocked classes, or use anything gmock.h provides. At the top of my (previously working) tests.cpp file I merely type

#include "gmock/gmock.h"

And I get the compile error:

gmock/gmock-matchers.h(2497) : error C2059: syntax error : 'sizeof'

gmock/gmock-matchers.h(2505) : see reference to class template instantiation 'testing::internal::ElementsAreMatcherImpl' being compiled

gmock/gmock-matchers.h(2497) : error C2059: syntax error : ')'

gmock/gmock-matchers.h(2497) : error C2143: syntax error : missing ')' before '{'

gmock/gmock-matchers.h(2497) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

gmock/gmock-matchers.h(2499) : warning C4183: 'Message': missing return type; assumed to be a member function returning 'int'

I'm compiling this using nmake/vc++ on Windows 7, and I can't fathom why I would get these compile errors simply from adding the core gmock include file to my test file. Has anyone seen this sort of thing before?

Answer 1

1. Did you init google mock with InitGoogleMock(&__argc, __argv) in test project's main function?
2. You should include only "gmock/gmock.h" in your test files (and where you call InitGoogleMock) - no need for inclusion of gtest.h.
3. Have you updated your googletest library to googlemock. (https://github.com/google/googletest)

If all the things above are true it should work.