Private Unit Test

PrivateUnitTest - The project demonstrates unit-testing of private methods.

Dependencies

• googletest

How to use

In project

For the class under test, add an include only for the test mode:

#ifdef UNIT_TESTING
#include <gtest/gtest_prod.h> 
#endif // UNIT_TESTING

Inside the class under test, add a macro for test mode only:

#ifdef UNIT_TESTING
	FRIEND_TEST(test_case_name, test_name);
#endif // UNIT_TESTING

In test

Include the testing class with test macro:

#define UNIT_TESTING
#include "TestClass.h"
#include "TestClass.cpp" // the linking error without this #include
#undef UNIT_TESTING

Add unit-test:

TEST(test_case_name, test_name)
{
    // here you can access to private methods of the class under test
}

Build local Windows/Linux

vcpkg install gtest
vcpkg integrate install

cd PrivateUnitTest
mkdir build && cd build

cmake .. -DCMAKE_TOOLCHAIN_FILE="path/to/vcpkg/scripts/buildsystems/vcpkg.cmake"

cmake --build . --config Release

Testing

ctest