'Test adding volume_admin_metadata table works correctly.'

def _check_020(self, engine, data):

    self.assertTrue(engine.dialect.has_table(engine.connect(), 'volume_admin_metadata'))
    volume_admin_metadata = db_utils.get_table(engine, 'volume_admin_metadata')
    self.assertIsInstance(volume_admin_metadata.c.created_at.type, self.TIME_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.updated_at.type, self.TIME_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.deleted_at.type, self.TIME_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.deleted.type, self.BOOL_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.id.type, self.INTEGER_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.volume_id.type, self.VARCHAR_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.key.type, self.VARCHAR_TYPE)
    self.assertIsInstance(volume_admin_metadata.c.value.type, self.VARCHAR_TYPE)
