commands: test: help: test description: execute ruby tests command: rake test phpunit: help: phpunit description: execute php tests command: ./bin/vendor/phpunit --configuration=tests/phpunit.xml ls: description: List /tmp folder command: ls /tmp ls_with_error: description: list folder that does not exist command: ls /tmp/file_that_does_not_exist # to be implemented groups: qa: - test - phpunit