Functional tests shouldn't inherit from Isolate IsolatedUnitTest

[Flavio Percoco]

There are some functional tests depending on IsolatedUnitTest which doesn't make much sense. For example:

https://github.com/openstack/glance/blob/master/glance/tests/functional/db/base.py#L63

The issue with this - besides making functional tests inherit from a Unit oriented TestCase - is that IsolatedUnitTests stubs some classes which makes it impossible to write functional tests depending on those classes.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/31232

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/31232
Committed: http://github.com/openstack/glance/commit/b1a7aca43df0853ea2b5c0fd8b60273e4ad36ed8
Submitter: Jenkins
Branch: master

commit b1a7aca43df0853ea2b5c0fd8b60273e4ad36ed8
Author: Flaper Fesp <email address hidden>
Date: Fri May 31 17:37:14 2013 +0200

    Don't make functional tests inherit from IsolatedUnitTest

    There were some functional tests inheriting from IsolatedUnitTest which
    doesn't make sense and was causing some issues in newer developments
    since IsolatedUnitTest stubs some classes (like Registry's client).

    Fixes bug: #1186291

    Change-Id: Icafac9edf8b0cec6a96532c609923de2c4d8d6bb