SHARE_MOVE(3),            // Share moved to different node
    IP_CHANGE(4),             // IP address changed
    SHARE_DELETE(5),          // Share deleted
    NODE_UNAVAILABLE(6),      // Cluster node unavailable
    NODE_AVAILABLE(7);        // Cluster node available
    
    private final int value;
    
    WitnessEventType(int value) {
        this.value = value;
    }
    
    public int getValue() { return value; }
}
```

        mockService.sendNotification(WitnessEventType.CLIENT_MOVE, "\\\\cluster\\share");
        mockService.sendNotification(WitnessEventType.NODE_AVAILABLE, "\\\\cluster\\share");

        // 4. Cleanup and unregistration
        assertTrue(mockService.unregisterWitness(regId));
        assertEquals(0, mockService.getRegistrationCount());