add_library_unity(test_common
                  OBJECT
                  test_cast.cpp
                  test_checksum.cpp
                  test_date.cpp
                  test_file_system.cpp
                  test_gzip_stream.cpp
                  test_timestamp.cpp
                  test_utf.cpp
                  test_string_util.cpp) # test_serializer.cpp
set(ALL_OBJECT_FILES
    ${ALL_OBJECT_FILES} $<TARGET_OBJECTS:test_common>
    PARENT_SCOPE)
