tests for Nova notifier fail because of nonexistent method

[Terri Yu]

When I run the Ceilometer unit tests, the tests for Nova notifier fail.

The relevant traceback from running the Ceilometer unit tests:

Traceback (most recent call last):
  File "/opt/stack/ceilometer/.tox/py27/local/lib/python2.7/site-packages/mock.py", line 1201, in patched
    return func(*args, **keywargs)
  File "/opt/stack/ceilometer/nova_tests/test_notifier.py", line 153, in setUp
    notifier_api.add_driver(self)
AttributeError: 'module' object has no attribute 'add_driver'

The reason for the failures is that the function add_driver() no longer exists in nova/openstack/common/notifier/api.py

This commit to the Nova repository deleted add_driver(): https://github.com/openstack/nova/commit/7b92cc75bb940be2c6b0c4b75abc8358941a4a6d

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/41628

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/41628
Committed: http://github.com/openstack/ceilometer/commit/486f723f43ace9342532397c75b75efe0e913a2c
Submitter: Jenkins
Branch: master

commit 486f723f43ace9342532397c75b75efe0e913a2c
Author: Julien Danjou <email address hidden>
Date: Tue Aug 13 11:15:03 2013 +0200

    Fix nova test_notifier wrt new notifier API

    The Oslo notifier api lost add_driver(), and nova copy of that code has
    been updated recently, so that broke Ceilometer testing of that piece.
    Fix it by using another mechanism to test.

    Change-Id: I0169fcc9955501d490dfcdd7742205ea5c9ba15b
    Closes-Bug: #1211532

[gordon chung (chungg)]

wow. good catch Terri