'Test adding default data for consistencygroups quota class.'

def _pre_upgrade_026(self, engine):

    quota_class_metadata = db_utils.get_table(engine, 'quota_classes')
    num_defaults = quota_class_metadata.count().where((quota_class_metadata.c.class_name == 'default')).execute().scalar()
    self.assertEqual(3, num_defaults)
