def setUp(self):
        self.rule = Rule('hjkl', 7, 8, '9.9.9.9/99')
        self.openstack_instance = Mock()

        self.ec2_connection = Mock(EC2Connection)
        self.openstack_rule_service = Mock(OpenstackRuleService)
        self.ec2_rule_service = Mock(EC2RuleService)

        self.group_rule_refresher = GroupRuleRefresher(
            self.ec2_connection, self.openstack_rule_service,
            self.ec2_rule_service)