透過 Git Submodule 和 CMake 使用 GoogleTest

大概兩年前有練習一下 [CPP] Unit Test for C++ Usage via Google Test，連假來複習一下，著重在 CMakefile 的使用：

$ cd /path/project
$ git submodule add https://github.com/google/googletest/tree/master/googletest 3rdParty/googletest

$ vim CMakeLists.txt
...

add_subdirectory(3rdParty/googletest)
add_executable(your_unit_test
your_unit_test.cpp
)
add_dependencies(your_unit_test gtest)
include_directories(${gtest_SOURCE_DIR}/include)
target_link_libraries(your_unit_test
gtest
)