public void testUpateAircraftTaxiInObjectAttributes() {

    // set the attributes to be updated
    //
    AircraftTaxiIn newAircraftTaxiIn = new AircraftTaxiIn();

    // NOTE: Used only since the unit testing is conducted in the VM.
    // Changing
    // this emulates what would happen if the objects were residing on
    // separate
    // machines and thus address spaces.

    newAircraftTaxiIn.setDataObjectUUID(aircraftTaxiIn.getDataObjectUUID());

    newAircraftTaxiIn.setCallSign(callSign);
    newAircraftTaxiIn.setTailNumber(tailNumber);

    newAircraftTaxiIn.setTaxiInGate(newTaxiInGate);
    newAircraftTaxiIn.setTaxiInTimeMSecs(System.currentTimeMillis());

    Set<String> fieldsToUpdate = new HashSet<String>();
    fieldsToUpdate.add(EventAttributeName.taxiInGate.toString());
    fieldsToUpdate.add(EventAttributeName.taxiInTimeMSecs.toString());

    try {
      objectService.updateObjectAttributes(
          federationExecutionID, newAircraftTaxiIn, fieldsToUpdate);
    } catch (MuthurException e) {
      fail(e.getLocalizedMessage());
    }

    // will retrieve the updated object from the object service and compare
    // it
    // to the object which should accurately test whether the update was
    // applied

    assertObjectExists(aircraftTaxiIn);
  }
  public void testAddAircraftTaxiInObject() {

    aircraftTaxiIn = null;

    try {
      aircraftTaxiIn = new AircraftTaxiIn(tailNumber, callSign);
    } catch (MuthurException e) {
      fail(e.getLocalizedMessage());
    }

    aircraftTaxiIn.setTaxiInTimeMSecs(System.currentTimeMillis());
    aircraftTaxiIn.setTaxiInGate(taxiInGate);

    // add the aircraft taxi in

    try {
      objectService.addDataObject(federationExecutionID, aircraftTaxiIn);
    } catch (MuthurException e) {
      fail(e.getLocalizedMessage());
    }

    assertObjectExists(aircraftTaxiIn);
  }
  @Test
  public void testCreateOrUpdateObjectRequestWithAircraftTaxInObject() {

    AircraftTaxiIn aircraftTaxiInData = null;

    try {
      aircraftTaxiInData = new AircraftTaxiIn(tailNumber, acid);
    } catch (Exception e) {
      fail(e.getLocalizedMessage());
    }

    assertNotNull(aircraftTaxiInData);

    assertEquals(aircraftTaxiInData.getCallSign(), acid);
    assertEquals(aircraftTaxiInData.getTailNumber(), tailNumber);
    assertNotNull(aircraftTaxiInData.getDataObjectUUID());
    assertFalse(aircraftTaxiInData.getDataObjectUUID().equalsIgnoreCase(""));
    assertTrue(aircraftTaxiInData.getObjectCreateTimeMSecs() != 0L);

    // gate taxiing to

    aircraftTaxiInData.setTaxiInGate("D5");

    // taxi in data

    aircraftTaxiInData.setTaxiInTimeMSecs(System.currentTimeMillis() + 30);

    // create a CreateOrUpdateObjectRequest

    CreateOrUpdateObjectRequest cor = new CreateOrUpdateObjectRequest();
    assertNotNull(cor);

    cor.setFederationExecutionHandle(UUID.randomUUID().toString());
    cor.setFederateRegistrationHandle(UUID.randomUUID().toString());
    cor.setFederationExecutionModelHandle(UUID.randomUUID().toString());
    cor.setSourceOfEvent("NexSim");
    cor.setDataObject(aircraftTaxiInData);

    // serialize the object

    String corAsXML = cor.serialize();

    // do standard validation

    assertNotNull(corAsXML);
    assertFalse(corAsXML.equals(""));

    // create another object from previous object's serialized form

    CreateOrUpdateObjectRequest objectFromXML = new CreateOrUpdateObjectRequest();

    try {
      objectFromXML.initialization(corAsXML);
    } catch (MuthurException e) {
      fail(e.getLocalizedMessage());
    }

    // ensure that the two objects are equal

    assertTrue(objectFromXML.equals(cor));

    // get the serialized version of the new object

    String newObjSerializedAsXML = objectFromXML.serialize();

    assertNotNull(newObjSerializedAsXML);
    assertFalse(newObjSerializedAsXML.equals(""));

    IBaseDataObject bdo = objectFromXML.getDataObject();

    assertNotNull(bdo);
    assertTrue(bdo instanceof AircraftTaxiIn);

    /** Initialize the internal data object from the serialized containing object */
    try {
      bdo.initialization(newObjSerializedAsXML);
    } catch (MuthurException e) {
      fail(e.getLocalizedMessage());
    }

    // check the serialized form of the data object
    String bdoSerialized = bdo.serialize();
    assertNotNull(bdoSerialized);
  }