/*
* 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.impl;
import org.jgap.*;
import junit.framework.*;
/**
* Tests the DefaultCrossoverRateCalculator class.
*
* @author Klaus Meffert
* @since 2.0
*/
public class DefaultCrossoverRateCalculatorTest
extends JGAPTestCase {
/** String containing the CVS revision. Read out via reflection!*/
private static final String CVS_REVISION = "$Revision: 1.12 $";
public static Test suite() {
TestSuite suite = new TestSuite(DefaultCrossoverRateCalculatorTest.class);
return suite;
}
public void setUp() {
super.setUp();
// reset the configurational parameters set
Configuration.reset();
}
/**
* @throws Exception
*
* @author Klaus Meffert
* @since 2.0
*/
public void testCalculateCurrentRate_0()
throws Exception {
IUniversalRateCalculator calc = new DefaultCrossoverRateCalculator(conf);
Gene gene = new IntegerGene(conf, 1, 5);
Chromosome chrom = new Chromosome(conf, gene, 50);
conf.setSampleChromosome(chrom);
int rate = calc.calculateCurrentRate();
assertEquals(conf.getChromosomeSize(), rate);
}
/**
* @throws Exception
*
* @author Klaus Meffert
* @since 2.0
*/
public void testCalculateCurrentRate_01()
throws Exception {
IUniversalRateCalculator calc = new DefaultCrossoverRateCalculator(conf);
Gene gene = new IntegerGene(conf, 1, 5);
Chromosome chrom = new Chromosome(conf, gene, 30);
conf.setSampleChromosome(chrom);
int rate = calc.calculateCurrentRate();
assertEquals(conf.getChromosomeSize(), rate);
}
/**
* If there are zero chromosomes in the config., the crossover rate
* nevertheless should be 1, because Random needs positive integers as input
* (see CrossoverOperator.operate for calling Random class)
* @throws Exception
*
* @author Klaus Meffert
* @since 2.0
*/
public void testCalculateCurrentRate_1()
throws Exception {
IUniversalRateCalculator calc = new DefaultCrossoverRateCalculator(conf);
int rate = calc.calculateCurrentRate();
assertEquals(1, rate);
}
/**
* @throws Exception
*
* @author Klaus Meffert
* @since 2.2
*/
public void testToBePermutated_0()
throws Exception {
IUniversalRateCalculator calc = new DefaultCrossoverRateCalculator(conf);
assertTrue(calc.toBePermutated(null, 0));
}
}