Greenworks uses Mocha framework to test the steamworks APIs.
Since Greenworks is interacting with Steamworks, you need to create a
steam_appid.txt
file with a valid Steam Game Application ID
(your own AppID or Steamworks example AppID) in the
<greenworks_src_dir>/test
directory, in order to run the tests.
cd <greenworks_src_dir>
./test/run-test