surgeonMapping2.init(surgeonPart2);
contactMapping.finish(contactPart);
doctorMapping.finish(doctorPart);
surgeonMapping1.finish(surgeonPart1);
surgeonMapping2.finish(surgeonPart2);
assertEquals(contactMsg, contactMapping.findMessage(contactClass));
assertEquals(doctorMsg, contactMapping.findMessage(doctorClass));
assertEquals(doctorMsg, contactMapping.findMessage(surgeonClass));
assertEquals(doctorMsg, doctorMapping.findMessage(surgeonClass));