unit tests needed to validate policy exceptions for all available actions

[Tushar Kalra]

We need a suite of unit tests that iterate through each available rule in policy.json, converts them all into admin-only actions, and asserts if a valid policy exception is raised when those actions are performed by a non-admin.

Currently there are tests that validate if policy.enforce enforces fake admin only actions, but it doesn't test for the exceptions raised at the API level for all available actions in policy file.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/76597

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/76597
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=07af3e4e60f8d58b37ed70e448e0ec90749a8561
Submitter: Jenkins
Branch: master

commit 07af3e4e60f8d58b37ed70e448e0ec90749a8561
Author: Rohan Kanade <email address hidden>
Date: Wed Feb 26 13:35:49 2014 +0100

    Adds unit test for etc/nova/policy.json data

    * Test live etc/nova/policy.json data
    * Convert all actions in policy.json to admin-only actions
    * Check that Policy auth exception is raised when all above actions are
      called using non-admin context

    Change-Id: I1b97987f8e9e3bacc606385a56daad189cf6ce19
    Closes-Bug: #1262325