TestAuthInfo class in test_v3_auth could be more efficient

[Henry Nash]

These tests are somewhat inefficient, since by using the test_v3.RestfulTestCase class to gain access to the auth building helper functions, they cause backend databases and fixtures to be loaded unnecessarily. Separating out the helper functions from . this base class would improve efficiency

[Dolph Mathews (dolph)]

I think the databases should be loaded but 'default_fixtures' should not.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/98072

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/98072
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=9722281cd7c720275e0e18b016428510bdbb27e4
Submitter: Jenkins
Branch: master

commit 9722281cd7c720275e0e18b016428510bdbb27e4
Author: ajayaa <email address hidden>
Date: Thu Jun 5 15:15:54 2014 +0530

    TestAuthInfo class in test_v3_auth made more efficient.

    The TestAuthInfo class inheriting from class RestfulTestCase
    is ineffcient because it causes backend databases and
    fixtures to be loaded unnecessarily.

    Moved auth building helper functions from RestfulTestCase to a new
    class AuthTestMixin

    Change-Id: If5c187e4f2a5871fd9ad41d90de4d5ddecd75153
    Closes-Bug: #1134836