| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.commons.math3.genetics; |
| |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class ChromosomeTest { |
| |
| @Test |
| public void testCompareTo() { |
| Chromosome c1 = new Chromosome() { |
| public double fitness() { |
| return 0; |
| } |
| }; |
| Chromosome c2 = new Chromosome() { |
| public double fitness() { |
| return 10; |
| } |
| }; |
| Chromosome c3 = new Chromosome() { |
| public double fitness() { |
| return 10; |
| } |
| }; |
| |
| Assert.assertTrue(c1.compareTo(c2) < 0); |
| Assert.assertTrue(c2.compareTo(c1) > 0); |
| Assert.assertEquals(0,c3.compareTo(c2)); |
| Assert.assertEquals(0,c2.compareTo(c3)); |
| } |
| |
| private abstract static class DummyChromosome extends Chromosome { |
| private final int repr; |
| |
| public DummyChromosome(final int repr) { |
| this.repr = repr; |
| } |
| @Override |
| protected boolean isSame(Chromosome another) { |
| return ((DummyChromosome) another).repr == repr; |
| } |
| } |
| |
| @Test |
| public void testFindSameChromosome() { |
| Chromosome c1 = new DummyChromosome(1) { |
| public double fitness() { |
| return 1; |
| } |
| }; |
| Chromosome c2 = new DummyChromosome(2) { |
| public double fitness() { |
| return 2; |
| } |
| }; |
| Chromosome c3 = new DummyChromosome(3) { |
| public double fitness() { |
| return 3; |
| } |
| }; |
| Chromosome c4 = new DummyChromosome(1) { |
| public double fitness() { |
| return 5; |
| } |
| }; |
| Chromosome c5 = new DummyChromosome(15) { |
| public double fitness() { |
| return 15; |
| } |
| }; |
| |
| List<Chromosome> popChr = new ArrayList<Chromosome>(); |
| popChr.add(c1); |
| popChr.add(c2); |
| popChr.add(c3); |
| Population pop = new ListPopulation(popChr,3) { |
| public Population nextGeneration() { |
| // not important |
| return null; |
| } |
| }; |
| |
| Assert.assertNull(c5.findSameChromosome(pop)); |
| Assert.assertEquals(c1, c4.findSameChromosome(pop)); |
| |
| c4.searchForFitnessUpdate(pop); |
| Assert.assertEquals(1, c4.getFitness(),0); |
| } |
| |
| } |
| |