tree ad77cb737352d2f499fb2323a382403df13a2126
parent 28d3b05b396a5b6e593cf6c3c0adbda595ea4bd0
author Felipe Monteiro <felipe.monteiro@att.com> 1488574695 -0500
committer Felipe Monteiro <felipe.monteiro@att.com> 1488574695 -0500

Increase unit test coverage for rbac_utils.

With recent framework changes, need unit tests needed to be added
for full unit test coverage. This patch does just that.

Also made clear_rbac_roles a private class by prefixing it with
'_', and moved a validation method from __init__ which checked
whether admin_role_id or rbac_role_id were None to switch_role,
so that this check is performed more than just during the
initialization.

Change-Id: Iba261989d9cbffba9d33aec0d4f48c3fcc83092e