public void testLockTwice() {
   fleetManager.lock(v1);
   Collection<Vehicle> vehicles = fleetManager.getAvailableVehicles();
   assertEquals(1, vehicles.size());
   try {
     fleetManager.lock(v1);
     @SuppressWarnings("unused")
     Collection<Vehicle> vehicles_ = fleetManager.getAvailableVehicles();
     assertFalse(true);
   } catch (IllegalStateException e) {
     assertTrue(true);
   }
 }
  public void
      testWithPenalty_whenHavingTwoRegularVehicleAvailablePlusOnePenaltyVehicle_andOneIsLocked_returnTheOtherRegularVehicle() {
    VehicleTypeImpl penaltyType = VehicleTypeImpl.Builder.newInstance("standard").build();
    PenaltyVehicleType penaltyVehicleType = new PenaltyVehicleType(penaltyType);

    Vehicle penalty4standard =
        VehicleImpl.Builder.newInstance("standard_penalty")
            .setStartLocationId("loc")
            .setType(penaltyVehicleType)
            .build();

    Vehicle v3 =
        VehicleImpl.Builder.newInstance("standard_v3")
            .setStartLocationId("loc")
            .setType(penaltyType)
            .build();

    List<Vehicle> vehicles = new ArrayList<Vehicle>();
    vehicles.add(v1);
    vehicles.add(v2);
    vehicles.add(penalty4standard);
    vehicles.add(v3);
    VehicleFleetManager fleetManager = new FiniteFleetManagerFactory(vehicles).createFleetManager();
    fleetManager.lock(v1);
    fleetManager.lock(v2);
    Collection<Vehicle> availableVehicles = fleetManager.getAvailableVehicles();
    assertEquals(1, availableVehicles.size());
    assertEquals(v3, availableVehicles.iterator().next());
  }
 public void testUnlock() {
   fleetManager.lock(v1);
   Collection<Vehicle> vehicles = fleetManager.getAvailableVehicles();
   assertEquals(1, vehicles.size());
   fleetManager.unlock(v1);
   Collection<Vehicle> vehicles_ = fleetManager.getAvailableVehicles();
   assertEquals(2, vehicles_.size());
 }
  public void testWithPenalty_whenHavingNoRegularVehicleAvailable_penaltyVehicleIsReturned() {
    VehicleTypeImpl penaltyType = VehicleTypeImpl.Builder.newInstance("standard").build();

    Vehicle penalty4standard =
        VehicleImpl.Builder.newInstance("standard_penalty")
            .setStartLocationId("loc")
            .setType(penaltyType)
            .build();

    List<Vehicle> vehicles = new ArrayList<Vehicle>();
    vehicles.add(v1);
    vehicles.add(v2);
    vehicles.add(penalty4standard);
    VehicleFleetManager fleetManager = new FiniteFleetManagerFactory(vehicles).createFleetManager();
    fleetManager.lock(v1);
    fleetManager.lock(v2);
    Collection<Vehicle> availableVehicles = fleetManager.getAvailableVehicles();
    assertEquals(penalty4standard, availableVehicles.iterator().next());
  }