old_contents: # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright 2013 Mirantis, Inc.
  # Copyright 2013 OpenStack Foundation
  # All Rights Reserved.
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  from oslo.config import cfg
  
  from openstack.common.fixture import config
  from tests.utils import BaseTestCase
  
  conf = cfg.CONF
  
  
  class ConfigTestCase(BaseTestCase):
      def setUp(self):
          super(ConfigTestCase, self).setUp()
          self.config = self.useFixture(config.Config(conf)).config
          self.config_fixture = config.Config(conf)
          conf.register_opt(cfg.StrOpt(
              'testing_option', default='initial_value'))
  
      def test_overriden_value(self):
          self.assertEquals(conf.get('testing_option'), 'initial_value')
          self.config(testing_option='changed_value')
          self.assertEquals(conf.get('testing_option'),
                            self.config_fixture.conf.get('testing_option'))
  
      def test_cleanup(self):
          self.config(testing_option='changed_value')
          self.assertEquals(self.config_fixture.conf.get('testing_option'),
                            'changed_value')
          self.config_fixture.conf.reset()
          self.assertEquals(conf.get('testing_option'), 'initial_value')
  
new_contents: # vim: tabstop=4 shiftwidth=4 softtabstop=4
  #
  # Copyright 2013 Mirantis, Inc.
  # Copyright 2013 OpenStack Foundation
  # All Rights Reserved.
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  from oslo.config import cfg
  
  from openstack.common.fixture import config
  from tests.utils import BaseTestCase
  
  conf = cfg.CONF
  
  
  class ConfigTestCase(BaseTestCase):
      def setUp(self):
          super(ConfigTestCase, self).setUp()
          self.config = self.useFixture(config.Config(conf)).config
          self.config_fixture = config.Config(conf)
          conf.register_opt(cfg.StrOpt(
              'testing_option', default='initial_value'))
  
      def test_overriden_value(self):
          self.assertEqual(conf.get('testing_option'), 'initial_value')
          self.config(testing_option='changed_value')
          self.assertEqual(conf.get('testing_option'),
                           self.config_fixture.conf.get('testing_option'))
  
      def test_cleanup(self):
          self.config(testing_option='changed_value')
          self.assertEqual(self.config_fixture.conf.get('testing_option'),
                           'changed_value')
          self.config_fixture.conf.reset()
          self.assertEqual(conf.get('testing_option'), 'initial_value')
  
subject: Bump hacking to 0.7.0