message: test: work on atsy setup
diff: [submodule "src/vendor/googletest"]
  path = src/vendor/googletest
  url = https://github.com/google/googletest.git
  +[submodule "test/atsy/atsy"]
  + path = test/atsy/atsy
  + url = https://github.com/EricRahm/atsy
  