### Question:
NetworkDefinition { public List<Bus> getBus() { if (bus == null) { bus = new ArrayList<Bus>(); } return this.bus; }  Document getDocument(); void setDocument(Document value); List<Node> getNode(); List<Bus> getBus();  }### Answer:
@Test public void testGetBus() { List<String> busList = new ArrayList<String>(); busList.add(new String("Motor")); busList.add(new String("Instrumentation")); busList.add(new String("Comfort")); List<String> msgList = new ArrayList<String>(); msgList.add(new String("Airbag")); msgList.add(new String("ABS")); msgList.add(new String("CruiseControlStatus")); msgList.add(new String("Emission")); msgList.add(new String("SteeringInfo")); msgList.add(new String("AntiTheft")); msgList.add(new String("Gear")); msgList.add(new String("Headlights")); msgList.add(new String("Wiper")); msgList.add(new String("BCC")); msgList.add(new String("TankController")); msgList.add(new String("ParksensorFront")); msgList.add(new String("ParksensorBack")); msgList.add(new String("Temperature")); msgList.add(new String("AirCondition")); msgList.add(new String("FrontLeftDoor")); msgList.add(new String("FrontRightDoor")); msgList.add(new String("BackLeftDoor")); msgList.add(new String("BackRightDoor")); msgList.add(new String("TrunkLid")); msgList.add(new String("DriverSeat")); msgList.add(new String("CodriverSeat")); msgList.add(new String("Radio")); msgList.add(new String("Navigation")); msgList.add(new String("DateTime")); for (Bus b : netdef.getBus()) { assertTrue("Unexpected bus", busList.contains(b.getName())); for (Message m : b.getMessage()) { assertTrue("Unexpected message", msgList.contains(m.getName())); } } }