RouterPort mockRPort = mock(RouterPort.class);
when(mockRPort.getId()).thenReturn(UUID.fromString("550e8400-e29b-41d4-a716-446655440000"));
//mockBPort
BridgePort mockBPort = mock(BridgePort.class);
when(mockBPort.link(any(UUID.class))).thenReturn(mockBPort);
//mockPort
Port mockPort = mock(Port.class);
ResourceCollection<Port> peerPorts = new ResourceCollection<Port>(new ArrayList<Port>());