public void testAssignController() throws Exception { TractionControlRequestMessage msg = TractionControlRequestMessage.createAssignController(src, dst); byte[] payload = msg.getPayload(); assertEquals("20 01 00 06 05 05 04 04 03", Utilities.toHexSpaceString(payload)); assertEquals(src, msg.getSourceNodeID()); assertEquals(dst, msg.getDestNodeID()); }