Add tests for host-collection and content-host

Add tests for host-collection and content-host

Add tests for host-collection and content-host

Add tests for host-collection and content-host

Add tests for host-collection and content-host
replaced the name content_host to content_hosts in test_hostcollection
formatted the the code in host_collection.py
Merge pull request #1248 from tkolhar/test_cli

Added tests for host-collection content-host