// Test sequence numbers
    long seq1 = registration.getNextSequenceNumber();
    long seq2 = registration.getNextSequenceNumber();
    assertEquals(seq1 + 1, seq2);
}

@Test
public void testWitnessNotification() {
    WitnessNotification notification = new WitnessNotification(
        WitnessEventType.CLIENT_MOVE, "TestResource");
    
    notification.addNewIPAddress(InetAddress.getByName("192.168.1.101"));