0328373cfb
Following OpenStack Style Guidelines[1]: http://docs.openstack.org/developer/hacking/#unit-tests-and-assertraises [H203] Unit test assertions tend to give better messages for more specific assertions. As a result, assertIsNone(...) is preferred over assertEqual(...,None) Change-Id: I83fc81bb7ea91fe63e881f49b2347ff39b9c51e7