Comment 0 for bug 1537063

Openstack infra gate-fuel-library-puppet gates call "bundle exec rake spec" for each submitted patch.
While the Rakefile in the fuel-library repo launches unit tests for all modules which is not optimal and only consumes more resources and time. It shall instead repeat the logic of the fuel_unit_tests script https://github.com/openstack/fuel-library/blob/master/utils/jenkins/fuel_unit_tests.sh#L83-L84 and run only unit tests for modules changed by the patch under test