old_contents: # 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.
  
  import mock
  
  from keystone import catalog
  from keystone.common import manager
  from keystone.tests import unit
  
  
  class TestCreateLegacyDriver(unit.BaseTestCase):
  
      @mock.patch('oslo_log.versionutils.report_deprecated_feature')
      def test_class_is_properly_deprecated(self, mock_reporter):
          Driver = manager.create_legacy_driver(catalog.CatalogDriverV8)
  
          # NOTE(dstanek): I want to subvert the requirement for this
          # class to implement all of the abstract methods.
          Driver.__abstractmethods__ = set()
          impl = Driver()
  
          details = {
              'as_of': 'Liberty',
              'what': 'keystone.catalog.core.Driver',
              'in_favor_of': 'keystone.catalog.core.CatalogDriverV8',
              'remove_in': 'N',
          }
          mock_reporter.assert_called_with(mock.ANY, mock.ANY, details)
  
          self.assertIsInstance(impl, catalog.CatalogDriverV8)
  
new_contents: # 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.
  
  import mock
  
  from keystone import catalog
  from keystone.common import manager
  from keystone.tests import unit
  
  
  class TestCreateLegacyDriver(unit.BaseTestCase):
  
      @mock.patch('oslo_log.versionutils.report_deprecated_feature')
      def test_class_is_properly_deprecated(self, mock_reporter):
          Driver = manager.create_legacy_driver(catalog.CatalogDriverV8)
  
          # NOTE(dstanek): I want to subvert the requirement for this
          # class to implement all of the abstract methods.
          Driver.__abstractmethods__ = set()
          impl = Driver()
  
          details = {
              'as_of': 'Liberty',
              'what': 'keystone.catalog.core.Driver',
              'in_favor_of': 'keystone.catalog.core.CatalogDriverV8',
              'remove_in': mock.ANY,
          }
          mock_reporter.assert_called_with(mock.ANY, mock.ANY, details)
          self.assertEqual('N', mock_reporter.call_args[0][2]['remove_in'][0])
  
          self.assertIsInstance(impl, catalog.CatalogDriverV8)
  
subject: Correct test to support changing N release name