AddGoogletest.cmake

#
#
# Includes GTest and provides a helper macro to add tests. Add make check, as well, which
# gives output on failed tests without having to set an environment variable.
#
#
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
set(BUILD_SHARED_LIBS OFF)

add_subdirectory("${CLI11_SOURCE_DIR}/extern/googletest" "${CLI11_BINARY_DIR}/extern/googletest" EXCLUDE_FROM_ALL)


if(GOOGLE_TEST_INDIVIDUAL)
    if(NOT CMAKE_VERSION VERSION_LESS 3.9)
        include(GoogleTest)
    else()
        set(GOOGLE_TEST_INDIVIDUAL OFF)
    endif()
endif()

# Target must already exist
macro(add_gtest TESTNAME)
    target_link_libraries(${TESTNAME} PUBLIC gtest gmock gtest_main)

    if(GOOGLE_TEST_INDIVIDUAL)
        if(CMAKE_VERSION VERSION_LESS 3.10)
            gtest_add_tests(TARGET ${TESTNAME}
                            TEST_PREFIX "${TESTNAME}."
                            TEST_LIST TmpTestList)
            set_tests_properties(${TmpTestList} PROPERTIES FOLDER "Tests")
        else()
            gtest_discover_tests(${TESTNAME}
                TEST_PREFIX "${TESTNAME}."
                PROPERTIES FOLDER "Tests")

        endif()
    else()
        add_test(${TESTNAME} ${TESTNAME})
        set_target_properties(${TESTNAME} PROPERTIES FOLDER "Tests")
        if (CLI11_FORCE_LIBCXX)
           set_property(TARGET ${T} APPEND_STRING
             PROPERTY LINK_FLAGS -stdlib=libc++)
         endif()
    endif()

endmacro()

set_target_properties(gtest gtest_main gmock gmock_main
    PROPERTIES FOLDER "Extern")