Comment 17 for bug 1280522

Reviewed: https://review.openstack.org/76067
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=17d7ea26dbe6e1e83cd9868ff1e373dee75031dc
Submitter: Jenkins
Branch: master

commit 17d7ea26dbe6e1e83cd9868ff1e373dee75031dc
Author: lvdongbing <email address hidden>
Date: Tue Feb 25 09:37:47 2014 +0800

    Replace assertEqual(None, *) with assertIsNone in tests

    Replace assertEqual(None, *) with assertIsNone in keystone's tests
    to havemore clear messages in case of failure.

    Closes-Bug: #1280522
    Change-Id: I5a857fcb3bfebc6ff14871df6b2cd1dee44596b2