add 3dt checks integration test
add 3dt checks integration test

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