melissaml 0328373cfb Using assertIsNone() instead of assertEqual(None)
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
2016-11-26 16:31:32 +08:00
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