ofagent UT failure

[YAMAMOTO Takashi]

recent changes (the one in policy module) made ofagent UT fail.

note: the failure depends on execution order of tests.

eg. "tox -e py27 neutron.tests.unit.ofagent.test_ofa_neutron_agent"

Traceback (most recent call last):
  File "neutron/tests/unit/ofagent/test_ofa_neutron_agent.py", line 217, in setUp
    self.agent = self.mod_agent.OFANeutronAgent(self.ryuapp, **kwargs) File "neutron/plugins/ofagent/agent/ofa_neutron_agent.py", line 249, in __init__
    self.setup_rpc()
  File "neutron/plugins/ofagent/agent/ofa_neutron_agent.py", line 301, in setup_
rpc
    self.context = context.get_admin_context_without_session()
  File "neutron/context.py", line 177, in get_admin_context_without_session
    read_deleted=read_deleted)
  File "neutron/context.py", line 68, in __init__
    self.is_advsvc = policy.check_is_advsvc(self)
  File "neutron/policy.py", line 434, in check_is_advsvc
    init()
  File "neutron/policy.py", line 79, in init
    _ENFORCER.load_rules(True)
  File "neutron/openstack/common/policy.py", line 246, in load_rules
    path = self._get_policy_path(path)
  File "neutron/openstack/common/policy.py", line 282, in _get_policy_path
    policy_path = CONF.find_file(path)
  File "/disks/774373a2-e180-11e3-9fa1-08606e7f74e7/git/neutron/.tox/py27/lib/python2.7/site-packages/oslo/config/cfg.py", line 1958, in find_file
    if self.config_dir:
  File "/disks/774373a2-e180-11e3-9fa1-08606e7f74e7/git/neutron/.tox/py27/lib/python2.7/site-packages/oslo/config/cfg.py", line 1697, in __getattr__
    raise NoSuchOptError(name)
NoSuchOptError: no such option: config_dir

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/134435

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/134435
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5da567f6035a97cd989f1da9f6bafc4c4396bfa2
Submitter: Jenkins
Branch: master

commit 5da567f6035a97cd989f1da9f6bafc4c4396bfa2
Author: YAMAMOTO Takashi <email address hidden>
Date: Fri Nov 14 12:39:37 2014 +0900

    ofa_test_base: Fix NoSuchOptError in UT

    Ensure setting up cfg.CONF.
    Otherwise, depending on the execution order of tests,
    some tests in test_ofa_neutron_agent can fail with
    the following exception:

        NoSuchOptError: no such option: config_dir

    The problem has been exposed by the recently merged change
    for policy module, commit d83731a96d3b47fab1295de1fb53cfe30576619c .

    Closes-Bug: #1392569
    Change-Id: I0d38df0510b95160c67ea7b76ed413138fa3d770