old_contents: # Copyright (c) 2012 NTT DOCOMO, INC.
  # 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.
  
  """Bare-metal DB test base class."""
  
  from nova import context as nova_context
  from nova.openstack.common import cfg
  from nova import test
  from nova.virt.baremetal.db import migration as bm_migration
  from nova.virt.baremetal.db.sqlalchemy import session as bm_session
  
  _DB = None
  
  CONF = cfg.CONF
  CONF.import_opt('baremetal_sql_connection',
                  'nova.virt.baremetal.db.sqlalchemy.session')
  
  
  def _reset_bmdb():
      global _DB
      engine = bm_session.get_engine()
      engine.dispose()
      conn = engine.connect()
      if _DB is None:
          if bm_migration.db_version() > bm_migration.INIT_VERSION:
              return
          bm_migration.db_sync()
          _DB = "".join(line for line in conn.connection.iterdump())
      else:
          conn.connection.executescript(_DB)
  
  
  class BMDBTestCase(test.TestCase):
  
      def setUp(self):
          super(BMDBTestCase, self).setUp()
          self.flags(baremetal_sql_connection='sqlite:///:memory:')
          _reset_bmdb()
          self.context = nova_context.get_admin_context()
  
new_contents: # Copyright (c) 2012 NTT DOCOMO, INC.
  # 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.
  
  """Bare-metal DB test base class."""
  
  import fixtures
  
  from nova import context as nova_context
  from nova.openstack.common import cfg
  from nova import test
  from nova.virt.baremetal.db import migration as bm_migration
  from nova.virt.baremetal.db.sqlalchemy import session as bm_session
  
  _DB_CACHE = None
  
  CONF = cfg.CONF
  CONF.import_opt('baremetal_sql_connection',
                  'nova.virt.baremetal.db.sqlalchemy.session')
  
  
  class Database(test.Database):
  
      def post_migrations(self):
          pass
  
  
  class BMDBTestCase(test.TestCase):
  
      def setUp(self):
          super(BMDBTestCase, self).setUp()
          self.flags(baremetal_sql_connection='sqlite:///:memory:')
          global _DB_CACHE
          if not _DB_CACHE:
              _DB_CACHE = Database(bm_session, bm_migration)
          self.useFixture(_DB_CACHE)
          self.context = nova_context.get_admin_context()
  
subject: Move baremetal database tests to fixtures.