Comment 99 for bug 1280522

Reviewed: https://review.openstack.org/264206
Committed: https://git.openstack.org/cgit/openstack/os-client-config/commit/?id=0b270f0bc9f6dd31d9c17bcc4d49d15630ee999b
Submitter: Jenkins
Branch: master

commit 0b270f0bc9f6dd31d9c17bcc4d49d15630ee999b
Author: LiuNanke <email address hidden>
Date: Wed Jan 6 22:49:52 2016 +0800

    Replace assertEqual(None, *) with assertIsNone in tests

    Replace assertEqual(None, *) with assertIsNone in tests to have
    more clear messages in case of failure.

    There have one more place should be modified.

    Change-Id: I53a8f129db0108892b8377edce2dbf19b0b95f5d
    Closes-bug: #1280522