public static Criterion matchUdpDst(TpPort udpPort) {
        return new UdpPortCriterion(udpPort, Type.UDP_DST);
    }
@Test
    public void testMatchUdpDstMethod() {
        Criterion matchUdpDst = Criteria.matchUdpDst(tpPort1);
        UdpPortCriterion udpPortCriterion =
                checkAndConvert(matchUdpDst,
                                Criterion.Type.UDP_DST,
                                UdpPortCriterion.class);
        assertThat(udpPortCriterion.udpPort(), is(equalTo(tpPort1)));
    }