/*
* This file is part of JGAP.
*
* JGAP offers a dual license model containing the LGPL as well as the MPL.
*
* For licensing information please see the file license.txt included with JGAP
* or have a look at the top of class org.jgap.Chromosome which representatively
* includes the JGAP license policy applicable for any file delivered with JGAP.
*/
package org.jgap.eval;
import java.util.*;
import org.jgap.*;
import org.jgap.impl.*;
import junit.framework.*;
/**
* Tests the PopulationHistory class.
*
* @author Klaus Meffert
* @since 1.1
*/
public class PopulationHistoryTest
extends JGAPTestCase {
/** String containing the CVS revision. Read out via reflection!*/
private final static String CVS_REVISION = "$Revision: 1.12 $";
public static Test suite() {
TestSuite suite = new TestSuite(PopulationHistoryTest.class);
return suite;
}
/**
* Test if construction possible.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testConstruct_0() {
new PopulationHistory(0);
new PopulationHistory(1);
new PopulationHistory(100);
new PopulationHistory(1000);
}
/**
* Test if construction fails correctly.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testConstruct_1() {
try {
new PopulationHistory( -1);
fail();
}
catch (IllegalArgumentException iex) {
; //this is OK
}
}
/**
* @author Klaus Meffert
* @since 2.1
*/
public void testGetPopulation_0() {
Population pop = new PopulationHistory(0).getPopulation(0);
assertEquals(null, pop);
}
/**
* @author Klaus Meffert
* @since 2.1
*/
public void testGetPopulation_1()
throws Exception {
Population pop = new Population(conf);
Gene gene = new BooleanGene(conf);
Chromosome chrom = new Chromosome(conf, gene, 4);
chrom.setFitnessValue(17);
pop.addChromosome(chrom);
Population pop2 = new Population(conf);
gene = new IntegerGene(conf);
chrom = new Chromosome(conf, gene, 3);
chrom.setFitnessValue(3);
pop2.addChromosome(chrom);
//ensure we have not two populations seen as equal.
assertFalse(pop.equals(pop2));
PopulationHistory ph = new PopulationHistory(0);
ph.addPopulation(pop);
ph.addPopulation(pop2);
assertEquals(2, ph.size());
//lastly added population has index 0!
Population result = ph.getPopulation(1);
assertEquals(pop, result);
result = ph.getPopulation(0);
assertEquals(pop2, result);
}
/**
* @author Klaus Meffert
* @since 2.1
*/
public void testRemoveAllPopulations_0()
throws Exception {
PopulationHistory ph = new PopulationHistory(0);
Population pop = new Population(conf);
Population pop2 = new Population(conf);
ph.addPopulation(pop);
ph.addPopulation(pop2);
ph.removeAllPopulations();
assertEquals(0, ph.size());
}
/**
* Limited capacity of 2 Population objects.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testAddPopulation_0()
throws Exception {
PopulationHistory ph = new PopulationHistory(2);
Population pop = new Population(conf);
Population pop2 = new Population(conf);
Population pop3 = new Population(conf);
ph.addPopulation(pop);
assertEquals(1, ph.size());
ph.addPopulation(pop2);
assertEquals(2, ph.size());
ph.addPopulation(pop3);
assertEquals(2, ph.size());
}
/**
* Unlimited capacity of Population objects.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testAddPopulation_1()
throws Exception {
PopulationHistory ph = new PopulationHistory(0);
Population pop = new Population(conf);
Population pop2 = new Population(conf);
Population pop3 = new Population(conf);
ph.addPopulation(pop);
assertEquals(1, ph.size());
ph.addPopulation(pop2);
assertEquals(2, ph.size());
ph.addPopulation(pop3);
assertEquals(3, ph.size());
}
/**
* Unlimited capacity of Population objects.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testSetPopulations_0()
throws Exception {
Population pop = new Population(conf);
Population pop2 = new Population(conf);
Population pop3 = new Population(conf);
List pops = new Vector();
pops.add(pop);
pops.add(pop2);
pops.add(pop3);
PopulationHistory ph = new PopulationHistory(0);
ph.setPopulations(pops);
assertEquals(3, ph.size());
assertEquals(pop, ph.getPopulation(0));
assertEquals(pop2, ph.getPopulation(1));
assertEquals(pop3, ph.getPopulation(2));
}
/**
* Limited capacity of Population objects.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testSetPopulations_1()
throws Exception {
Population pop = new Population(conf);
Population pop2 = new Population(conf);
Population pop3 = new Population(conf);
List pops = new Vector();
pops.add(pop);
pops.add(pop2);
pops.add(pop3);
PopulationHistory ph = new PopulationHistory(2);
ph.setPopulations(pops);
assertEquals(2, ph.size());
assertEquals(pop, ph.getPopulation(0));
assertEquals(pop2, ph.getPopulation(1));
}
/**
* Limited capacity of Population objects.
*
* @author Klaus Meffert
* @since 2.1
*/
public void testSize_0()
throws Exception {
Population pop = new Population(conf);
Population pop2 = new Population(conf);
PopulationHistory ph = new PopulationHistory(2);
ph.addPopulation(pop);
assertEquals(1, ph.size());
ph.addPopulation(pop2);
assertEquals(2, ph.size());
ph.addPopulation(pop2);
assertEquals(2, ph.size());
ph.removeAllPopulations();
assertEquals(0, ph.size());
ph.addPopulation(pop);
assertEquals(1, ph.size());
ph.addPopulation(pop);
assertEquals(2, ph.size());
}
/**
* @author Klaus Meffert
*/
public void testGetPopulations_0()
throws Exception {
PopulationHistory ph = new PopulationHistory(3);
List l = ph.getPopulations();
assertEquals(0, l.size());
Population pop = new Population(conf);
ph.addPopulation(pop);
assertEquals(1, l.size());
Population pop2 = new Population(conf);
ph.addPopulation(pop2);
assertEquals(2, l.size());
ph.addPopulation(pop2);
assertEquals(3, l.size());
l = ph.getPopulations();
assertEquals(pop2, l.get(0));
assertEquals(pop2, l.get(1));
assertEquals(pop, l.get(2));
}
}