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add new and unique random instance to ensure reproducibility of several run within the same jvm

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oblonski 2015-04-24 19:56:06 +02:00
parent 7016f3baa3
commit 4efbd1cd1e
8 changed files with 216 additions and 82 deletions
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99
jsprit-core/src/test/java/jsprit/core/algorithm/box/JspritTest.java
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@ -511,6 +511,7 @@ public class JspritTest {
Assert.assertEquals(Solutions.bestOf(firstSolutions).getCost(),Solutions.bestOf(secondSolutions).getCost());
}
@Test
public void whenTerminatingWithVariationCoefficient_terminationShouldBeReproducible(){
@ -558,4 +559,102 @@ public class JspritTest {
Assert.assertEquals(Solutions.bestOf(firstSolutions).getCost(),Solutions.bestOf(secondSolutions).getCost());
}
@Test
public void whenBiggerProblem_insertioPositionsShouldBeReproducibleWithoutResetingRNGExplicitly(){
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
new VrpXMLReader(vrpBuilder).read("src/test/resources/vrpnc1-jsprit-with-deliveries.xml");
VehicleRoutingProblem vrp = vrpBuilder.build();
RandomNumberGeneration.reset();
VehicleRoutingAlgorithm vra = Jsprit.createAlgorithm(vrp);
vra.setMaxIterations(200);
final List<Integer> firstRecord = new ArrayList<Integer>();
vra.addListener(new BeforeJobInsertionListener() {
@Override
public void informBeforeJobInsertion(Job job, InsertionData data, VehicleRoute route) {
firstRecord.add(data.getDeliveryInsertionIndex());
}
});
Collection<VehicleRoutingProblemSolution> firstSolutions = vra.searchSolutions();
// RandomNumberGeneration.reset();
VehicleRoutingAlgorithm second = Jsprit.createAlgorithm(vrp);
second.setMaxIterations(200);
final List<Integer> secondRecord = new ArrayList<Integer>();
second.addListener(new BeforeJobInsertionListener() {
@Override
public void informBeforeJobInsertion(Job job, InsertionData data, VehicleRoute route) {
secondRecord.add(data.getDeliveryInsertionIndex());
}
});
Collection<VehicleRoutingProblemSolution> secondSolutions = second.searchSolutions();
Assert.assertEquals(secondRecord.size(),firstRecord.size());
for(int i=0;i<firstRecord.size();i++){
if(!firstRecord.get(i).equals(secondRecord.get(i))){
Assert.assertFalse(true);
}
}
Assert.assertTrue(true);
Assert.assertEquals(Solutions.bestOf(firstSolutions).getCost(),Solutions.bestOf(secondSolutions).getCost());
}
@Test
public void whenBiggerProblem_ruinedJobsShouldBeReproducibleWithoutResetingRNGExplicitly(){
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
new VrpXMLReader(vrpBuilder).read("src/test/resources/vrpnc1-jsprit-with-deliveries.xml");
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = Jsprit.createAlgorithm(vrp);
vra.setMaxIterations(200);
final List<String> firstRecord = new ArrayList<String>();
vra.addListener(new RuinListener() {
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {
}
@Override
public void ruinEnds(Collection<VehicleRoute> routes, Collection<Job> unassignedJobs) {
}
@Override
public void removed(Job job, VehicleRoute fromRoute) {
firstRecord.add(job.getId());
}
});
vra.searchSolutions();
// RandomNumberGeneration.reset();
VehicleRoutingAlgorithm second = Jsprit.createAlgorithm(vrp);
second.setMaxIterations(200);
final List<String> secondRecord = new ArrayList<String>();
second.addListener(new RuinListener() {
@Override
public void ruinStarts(Collection<VehicleRoute> routes) {
}
@Override
public void ruinEnds(Collection<VehicleRoute> routes, Collection<Job> unassignedJobs) {
}
@Override
public void removed(Job job, VehicleRoute fromRoute) {
secondRecord.add(job.getId());
}
});
second.searchSolutions();
Assert.assertEquals(secondRecord.size(),firstRecord.size());
for(int i=0;i<firstRecord.size();i++){
if(!firstRecord.get(i).equals(secondRecord.get(i))){
Assert.assertFalse(true);
}
}
Assert.assertTrue(true);
}
}