Add unit tests for gen helpers
Add unit tests for gen helpers

mesosphere-mergebot/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,branden/dcos,surdy/dcos,mesosphere-mergebot/mergebot-test-dcos,mellenburg/dcos,mesosphere-mergebot/dcos,dcos/dcos,kensipe/dcos,mellenburg/dcos,kensipe/dcos,amitaekbote/dcos,mellenburg/dcos,kensipe/dcos,amitaekbote/dcos,branden/dcos,amitaekbote/dcos,branden/dcos,GoelDeepak/dcos,GoelDeepak/dcos,mellenburg/dcos,amitaekbote/dcos,surdy/dcos,mesosphere-mergebot/mergebot-test-dcos,dcos/dcos,GoelDeepak/dcos,dcos/dcos,mesosphere-mergebot/dcos,GoelDeepak/dcos,kensipe/dcos,branden/dcos,surdy/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,mesosphere-mergebot/dcos,dcos/dcos