/**
* @author Robert Dempsey, Student Number: N5400872 Tests if firstCarriage() followed by
* subsequent nextCarriage() calls traverses all carriages on train
* @throws TrainException
*/
@Test
public void testFirstThenNextCarriageFullTraversalOfTrain() throws TrainException {
final Integer SEATS = 20;
final Integer GROSS_WEIGHT = 90;
final String CLASSIFICATION = "4S";
final Locomotive LOCOMOTIVE = new Locomotive(GROSS_WEIGHT, CLASSIFICATION);
final PassengerCar PASSENGERCAR_01 = new PassengerCar(GROSS_WEIGHT, SEATS);
final PassengerCar PASSENGERCAR_02 = new PassengerCar(GROSS_WEIGHT, SEATS);
final PassengerCar PASSENGERCAR_03 = new PassengerCar(GROSS_WEIGHT, SEATS);
final PassengerCar PASSENGERCAR_04 = new PassengerCar(GROSS_WEIGHT, SEATS);
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCOMOTIVE);
departingTrain.addCarriage(PASSENGERCAR_01);
departingTrain.addCarriage(PASSENGERCAR_02);
departingTrain.addCarriage(PASSENGERCAR_03);
departingTrain.addCarriage(PASSENGERCAR_04);
assertEquals(LOCOMOTIVE, departingTrain.firstCarriage());
assertEquals(PASSENGERCAR_01, departingTrain.nextCarriage());
assertEquals(PASSENGERCAR_02, departingTrain.nextCarriage());
assertEquals(PASSENGERCAR_03, departingTrain.nextCarriage());
assertEquals(PASSENGERCAR_04, departingTrain.nextCarriage());
}
/**
* Tests Add PassengerCar to Departing Train with Loco Only
*
* @throws TrainException
*/
@Test
public void testAddPassenger() throws TrainException {
final Locomotive LOCO = new Locomotive(90, "4S");
final PassengerCar PASSENGER = new PassengerCar(90, 20);
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCO);
departingTrain.addCarriage(PASSENGER);
assertEquals(departingTrain.firstCarriage(), LOCO);
assertEquals(departingTrain.nextCarriage(), PASSENGER);
}
/**
* Tests Add FreightCar to Departing Train with Loco Only
*
* @throws TrainException
*/
@Test
public void testAddFreight() throws TrainException {
final Locomotive LOCO = new Locomotive(90, "4S");
final FreightCar FREIGHT = new FreightCar(90, "G");
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCO);
departingTrain.addCarriage(FREIGHT);
assertEquals(departingTrain.firstCarriage(), LOCO);
assertEquals(departingTrain.nextCarriage(), FREIGHT);
}
/**
* Test Get Third or higher Carriage on a Train with Multiple Carriages but doesn't exist and
* returns null
*
* @throws TrainException
*/
@Test
public void testGetNextCarriage_Null() throws TrainException {
final Integer GROSS_WEIGHT = 90;
final String POWER_CLASS = "4S";
final Integer SEATS = 20;
final String GOODS_TYPE = "G";
final Locomotive LOCO = new Locomotive(GROSS_WEIGHT, POWER_CLASS);
final PassengerCar PASSENGER = new PassengerCar(GROSS_WEIGHT, SEATS);
final FreightCar FREIGHT = new FreightCar(GROSS_WEIGHT, GOODS_TYPE);
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCO);
departingTrain.addCarriage(PASSENGER);
departingTrain.addCarriage(FREIGHT);
assertEquals(departingTrain.firstCarriage(), LOCO);
assertEquals(departingTrain.nextCarriage(), PASSENGER);
assertEquals(departingTrain.nextCarriage(), FREIGHT);
assertNull(departingTrain.nextCarriage());
}
/**
* @author Robert Dempsey, Student Number: N5400872 Tests that a freight car at the end will be
* successfully removed
* @throws TrainException
*/
@Test
public void testRemoveCarriageLastCarriageFreight() throws TrainException {
final Integer GROSS_WEIGHT = 90;
final String CLASSIFICATION = "4S";
final String GOODS_TYPE = "G";
final Locomotive LOCOMOTIVE = new Locomotive(GROSS_WEIGHT, CLASSIFICATION);
final FreightCar FREIGHTCAR = new FreightCar(GROSS_WEIGHT, GOODS_TYPE);
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCOMOTIVE);
departingTrain.addCarriage(FREIGHTCAR);
departingTrain.removeCarriage();
assertEquals(LOCOMOTIVE, departingTrain.firstCarriage());
assertNull(departingTrain.nextCarriage());
}
/**
* @author Robert Dempsey, Student Number: N5400872 Tests that a passenger car at the end will be
* successfully removed
* @throws TrainException
*/
@Test
public void testRemoveCarriageLastCarriagePassenger() throws TrainException {
final Integer SEATS = 20;
final Integer GROSS_WEIGHT = 90;
final String CLASSIFICATION = "4S";
final Locomotive LOCOMOTIVE = new Locomotive(GROSS_WEIGHT, CLASSIFICATION);
final PassengerCar PASSENGERCAR_01 = new PassengerCar(GROSS_WEIGHT, SEATS);
DepartingTrain departingTrain = new DepartingTrain();
departingTrain.addCarriage(LOCOMOTIVE);
departingTrain.addCarriage(PASSENGERCAR_01);
departingTrain.removeCarriage();
assertEquals(LOCOMOTIVE, departingTrain.firstCarriage());
assertNull(departingTrain.nextCarriage());
}