/*
* Copyright 2010 JBoss Inc
*
* 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.drools.planner.core.localsearch.decider.acceptor.greatdeluge;
import java.util.Random;
import org.drools.planner.core.localsearch.scope.LocalSearchMoveScope;
import org.drools.planner.core.localsearch.scope.LocalSearchSolverPhaseScope;
import org.drools.planner.core.localsearch.scope.LocalSearchStepScope;
import org.drools.planner.core.localsearch.decider.acceptor.Acceptor;
import org.drools.planner.core.move.DummyMove;
import org.drools.planner.core.score.buildin.simple.DefaultSimpleScore;
import org.drools.planner.core.score.Score;
import org.drools.planner.core.score.buildin.simple.SimpleScoreDefinition;
import org.drools.planner.core.score.director.drools.DroolsScoreDirectorFactory;
import org.drools.planner.core.solver.scope.DefaultSolverScope;
import org.drools.planner.core.testdata.domain.TestdataSolution;
import org.junit.Test;
import static org.junit.Assert.*;
public class GreatDelugeAcceptorTest {
@Test
public void testIsAccepted() {
// Setup
Acceptor acceptor = new GreatDelugeAcceptor(1.20, 0.01);
LocalSearchSolverPhaseScope localSearchSolverPhaseScope = createLocalSearchSolverPhaseScope();
acceptor.phaseStarted(localSearchSolverPhaseScope);
LocalSearchStepScope localSearchStepScope = new LocalSearchStepScope(localSearchSolverPhaseScope);
localSearchStepScope.setStepIndex(0);
acceptor.stepStarted(localSearchStepScope);
// Pre conditions
LocalSearchMoveScope a1 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-2000));
LocalSearchMoveScope a2 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-1300));
LocalSearchMoveScope a3 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-1200));
LocalSearchMoveScope b1 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-1200));
LocalSearchMoveScope b2 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-100));
LocalSearchMoveScope c1 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-1100));
LocalSearchMoveScope c2 = createMoveScope(localSearchStepScope, DefaultSimpleScore.valueOf(-120));
// Do stuff
assertEquals(false, acceptor.isAccepted(a1));
assertEquals(false, acceptor.isAccepted(a2));
assertEquals(true, acceptor.isAccepted(a3));
// TODO reable a thorough test of great deluge
// acceptor.stepEnded(localSearchStepScope);
// assertEquals(false, acceptor.isAccepted(b1));
// assertEquals(true, acceptor.isAccepted(b2));
// acceptor.stepEnded(localSearchStepScope);
// assertEquals(false, acceptor.isAccepted(c1));
// acceptor.stepEnded(localSearchStepScope);
// assertEquals(true, acceptor.isAccepted(c2));
// acceptor.stepEnded(localSearchStepScope);
// // Post conditions
// acceptor.phaseEnded(localSearchSolverPhaseScope);
}
private LocalSearchSolverPhaseScope createLocalSearchSolverPhaseScope() {
DefaultSolverScope solverScope = new DefaultSolverScope();
LocalSearchSolverPhaseScope phaseScope = new LocalSearchSolverPhaseScope(solverScope);
DroolsScoreDirectorFactory scoreDirectorFactory = new DroolsScoreDirectorFactory();
scoreDirectorFactory.setSolutionDescriptor(TestdataSolution.buildSolutionDescriptor());
scoreDirectorFactory.setScoreDefinition(new SimpleScoreDefinition());
solverScope.setScoreDirector(scoreDirectorFactory.buildScoreDirector());
solverScope.setWorkingRandom(new Random() {
public double nextDouble() {
return 0.2;
}
});
solverScope.setBestScore(DefaultSimpleScore.valueOf(-1000));
LocalSearchStepScope lastLocalSearchStepScope = new LocalSearchStepScope(phaseScope);
lastLocalSearchStepScope.setScore(DefaultSimpleScore.valueOf(-1000));
phaseScope.setLastCompletedStepScope(lastLocalSearchStepScope);
return phaseScope;
}
public LocalSearchMoveScope createMoveScope(LocalSearchStepScope localSearchStepScope, Score score) {
LocalSearchMoveScope moveScope = new LocalSearchMoveScope(localSearchStepScope);
moveScope.setMove(new DummyMove());
moveScope.setScore(score);
return moveScope;
}
}