Private Unit Test
PrivateUnitTest - The project demonstrates unit-testing of private methods.
Dependencies
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
#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
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
#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
}
{
// 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
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