def test_invalid_mtu(self, mocker, deckhand_ingester, drydock_state,
                         input_files):

        input_file = input_files.join("invalid_mtu.yaml")
        design_ref = "file://%s" % str(input_file)

        orch = Orchestrator(state_manager=drydock_state,
                            ingester=deckhand_ingester)

        status, site_design = Orchestrator.get_effective_site(orch, design_ref)

        message_list = Validator.mtu_rational(site_design)

        regex = re.compile(
            'Mtu Error: Mtu must be between 1400 and 64000; on Network .+')
        regex_1 = re.compile(
            'Mtu Error: Mtu must be <= the parent Network Link; for Network .+'
        )

        for msg in message_list:
            msg = msg.to_dict()
            assert msg.get('error')
            assert regex.match(
                msg.get('message')) is not None or regex_1.match(
                    msg.get('message')) is not None

        assert len(message_list) == 4
    def test_mtu(self, mocker, deckhand_ingester, drydock_state, input_files):

        input_file = input_files.join("mtu_rational.yaml")
        design_ref = "file://%s" % str(input_file)

        orch = Orchestrator(state_manager=drydock_state,
                            ingester=deckhand_ingester)

        status, site_design = Orchestrator.get_effective_site(orch, design_ref)

        message_list = Validator.mtu_rational(site_design)
        msg = message_list[0].to_dict()

        assert msg.get('message') == 'Mtu'
        assert msg.get('error') is False
        assert len(message_list) == 1