/*******************************************************************************
* Copyright (c) 2014 Stefan Schroeder.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Contributors:
* Stefan Schroeder - initial API and implementation
******************************************************************************/
package jsprit.core.algorithm.recreate;
import jsprit.core.problem.cost.VehicleRoutingActivityCosts;
import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
import jsprit.core.problem.misc.JobInsertionContext;
import jsprit.core.problem.solution.route.VehicleRoute;
import jsprit.core.problem.solution.route.activity.End;
import jsprit.core.problem.solution.route.activity.TourActivity;
import jsprit.core.problem.vehicle.Vehicle;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class TestLocalActivityInsertionCostsCalculator {
VehicleRoutingTransportCosts tpCosts;
VehicleRoutingActivityCosts actCosts;
LocalActivityInsertionCostsCalculator calc;
Vehicle vehicle;
VehicleRoute route;
JobInsertionContext jic;
@Before
public void doBefore(){
vehicle = mock(Vehicle.class);
route = mock(VehicleRoute.class);
when(route.isEmpty()).thenReturn(false);
when(route.getVehicle()).thenReturn(vehicle);
jic = mock(JobInsertionContext.class);
when(jic.getRoute()).thenReturn(route);
when(jic.getNewVehicle()).thenReturn(vehicle);
tpCosts = mock(VehicleRoutingTransportCosts.class);
when(tpCosts.getTransportCost("i", "j", 0.0, null, vehicle)).thenReturn(2.0);
when(tpCosts.getTransportTime("i", "j", 0.0, null, vehicle)).thenReturn(0.0);
when(tpCosts.getTransportCost("i", "k", 0.0, null, vehicle)).thenReturn(3.0);
when(tpCosts.getTransportTime("i", "k", 0.0, null, vehicle)).thenReturn(0.0);
when(tpCosts.getTransportCost("k", "j", 0.0, null, vehicle)).thenReturn(3.0);
when(tpCosts.getTransportTime("k", "j", 0.0, null, vehicle)).thenReturn(0.0);
actCosts = mock(VehicleRoutingActivityCosts.class);
calc = new LocalActivityInsertionCostsCalculator(tpCosts, actCosts);
}
@Test
public void whenInsertingActBetweenTwoRouteActs_itCalcsMarginalTpCosts(){
TourActivity prevAct = mock(TourActivity.class);
when(prevAct.getLocationId()).thenReturn("i");
TourActivity nextAct = mock(TourActivity.class);
when(nextAct.getLocationId()).thenReturn("j");
TourActivity newAct = mock(TourActivity.class);
when(newAct.getLocationId()).thenReturn("k");
when(vehicle.isReturnToDepot()).thenReturn(true);
double costs = calc.getCosts(jic, prevAct, nextAct, newAct, 0.0);
assertEquals(4.0,costs,0.01);
}
@Test
public void whenInsertingActBetweenLastActAndEnd_itCalcsMarginalTpCosts(){
TourActivity prevAct = mock(TourActivity.class);
when(prevAct.getLocationId()).thenReturn("i");
End nextAct = End.newInstance("j", 0.0, 0.0);
TourActivity newAct = mock(TourActivity.class);
when(newAct.getLocationId()).thenReturn("k");
when(vehicle.isReturnToDepot()).thenReturn(true);
double costs = calc.getCosts(jic, prevAct, nextAct, newAct, 0.0);
assertEquals(4.0,costs,0.01);
}
@Test
public void whenInsertingActBetweenTwoRouteActsAndRouteIsOpen_itCalcsMarginalTpCosts(){
TourActivity prevAct = mock(TourActivity.class);
when(prevAct.getLocationId()).thenReturn("i");
TourActivity nextAct = mock(TourActivity.class);
when(nextAct.getLocationId()).thenReturn("j");
TourActivity newAct = mock(TourActivity.class);
when(newAct.getLocationId()).thenReturn("k");
when(vehicle.isReturnToDepot()).thenReturn(false);
double costs = calc.getCosts(jic, prevAct, nextAct, newAct, 0.0);
assertEquals(4.0,costs,0.01);
}
@Test
public void whenInsertingActBetweenLastActAndEndAndRouteIsOpen_itCalculatesTpCostsFromPrevToNewAct(){
TourActivity prevAct = mock(TourActivity.class);
when(prevAct.getLocationId()).thenReturn("i");
End nextAct = End.newInstance("j", 0.0, 0.0);
TourActivity newAct = mock(TourActivity.class);
when(newAct.getLocationId()).thenReturn("k");
when(vehicle.isReturnToDepot()).thenReturn(false);
double costs = calc.getCosts(jic, prevAct, nextAct, newAct, 0.0);
assertEquals(3.0,costs,0.01);
}
}