@Test
public void testMatchIpRangeMatchWhenIpWrongException() throws UnknownHostException {

    UnknownHostException thrown =
            assertThrows(UnknownHostException.class, () ->
                    NetUtils.matchIpRange("192.168.1.63", "192.168.1.ff", 90));
    assertTrue(thrown.getMessage().contains("192.168.1.ff"));
}