/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.core.impl.solver.termination;
import org.junit.Test;
import org.optaplanner.core.impl.phase.scope.AbstractPhaseScope;
import org.optaplanner.core.impl.phase.scope.AbstractStepScope;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
public class UnimprovedStepCountTerminationTest {
@Test
public void phaseTermination() {
Termination termination = new UnimprovedStepCountTermination(4);
AbstractPhaseScope phaseScope = mock(AbstractPhaseScope.class);
AbstractStepScope lastCompletedStepScope = mock(AbstractStepScope.class);
when(phaseScope.getLastCompletedStepScope()).thenReturn(lastCompletedStepScope);
when(phaseScope.getBestSolutionStepIndex()).thenReturn(10);
when(lastCompletedStepScope.getStepIndex()).thenReturn(10);
when(phaseScope.getNextStepIndex()).thenReturn(11);
assertEquals(false, termination.isPhaseTerminated(phaseScope));
assertEquals(0.0, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
when(lastCompletedStepScope.getStepIndex()).thenReturn(11);
when(phaseScope.getNextStepIndex()).thenReturn(12);
assertEquals(false, termination.isPhaseTerminated(phaseScope));
assertEquals(0.25, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
when(lastCompletedStepScope.getStepIndex()).thenReturn(12);
when(phaseScope.getNextStepIndex()).thenReturn(13);
assertEquals(false, termination.isPhaseTerminated(phaseScope));
assertEquals(0.5, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
when(lastCompletedStepScope.getStepIndex()).thenReturn(13);
when(phaseScope.getNextStepIndex()).thenReturn(14);
assertEquals(false, termination.isPhaseTerminated(phaseScope));
assertEquals(0.75, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
when(lastCompletedStepScope.getStepIndex()).thenReturn(14);
when(phaseScope.getNextStepIndex()).thenReturn(15);
assertEquals(true, termination.isPhaseTerminated(phaseScope));
assertEquals(1.0, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
when(lastCompletedStepScope.getStepIndex()).thenReturn(15);
when(phaseScope.getNextStepIndex()).thenReturn(16);
assertEquals(true, termination.isPhaseTerminated(phaseScope));
assertEquals(1.0, termination.calculatePhaseTimeGradient(phaseScope), 0.0);
}
}