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clean, test and document core.algorithm.termination.IterationWithoutImprovementTermination

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oblonski 2014-08-12 12:45:33 +02:00
parent b3dd790be2
commit dce8019b80
2 changed files with 82 additions and 10 deletions
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jsprit-core/src/test/java/jsprit/core/algorithm/termination/IterationsWithoutImprovementTest.java Normal file
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package jsprit.core.algorithm.termination;
import jsprit.core.algorithm.SearchStrategy;
import junit.framework.Assert;
import org.junit.Test;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class IterationsWithoutImprovementTest {
@Test
public void itShouldTerminateAfter100(){
IterationWithoutImprovementTermination termination = new IterationWithoutImprovementTermination(100);
SearchStrategy.DiscoveredSolution discoveredSolution = mock(SearchStrategy.DiscoveredSolution.class);
when(discoveredSolution.isAccepted()).thenReturn(false);
int terminatedAfter = 0;
for(int i=0;i<200;i++){
boolean terminate = termination.isPrematureBreak(discoveredSolution);
if(terminate) {
terminatedAfter = i;
break;
}
}
Assert.assertEquals(100,terminatedAfter);
}
@Test
public void itShouldTerminateAfter1(){
IterationWithoutImprovementTermination termination = new IterationWithoutImprovementTermination(1);
SearchStrategy.DiscoveredSolution discoveredSolution = mock(SearchStrategy.DiscoveredSolution.class);
when(discoveredSolution.isAccepted()).thenReturn(false);
int terminatedAfter = 0;
for(int i=0;i<200;i++){
boolean terminate = termination.isPrematureBreak(discoveredSolution);
if(terminate) {
terminatedAfter = i;
break;
}
}
Assert.assertEquals(1,terminatedAfter);
}
@Test
public void itShouldTerminateAfter150(){
IterationWithoutImprovementTermination termination = new IterationWithoutImprovementTermination(100);
SearchStrategy.DiscoveredSolution discoveredSolution = mock(SearchStrategy.DiscoveredSolution.class);
int terminatedAfter = 0;
for(int i=0;i<200;i++){
when(discoveredSolution.isAccepted()).thenReturn(false);
if(i == 49) when(discoveredSolution.isAccepted()).thenReturn(true);
boolean terminate = termination.isPrematureBreak(discoveredSolution);
if(terminate) {
terminatedAfter = i;
break;
}
}
Assert.assertEquals(150,terminatedAfter);
}
}