/** Test of setOperation method, of class SimpleReplacementStrategy. */
@Test
public void testSetOperation() {
System.out.println("* SimpleReplacementStrategy: setOperation");
Operation op = new ReplacementOperation(1);
SimpleReplacementStrategy instance = new SimpleReplacementStrategy();
instance.setOperation(op);
assertEquals(true, instance.replacementOperation instanceof ReplacementOperation);
}
/** Test of perform method, of class SimpleReplacementStrategy. */
@Test
public void testPerform() {
System.out.println("* SimpleReplacementStrategy: perform");
// population < incomingPopulation
int populationSize = 10;
int incomingpopulationSize = 15;
List<Individual> operands = new ArrayList<Individual>();
for (int i = incomingpopulationSize; i > 0; i--) {
operands.add(IndividualMaker.makeIndividual());
operands.get(incomingpopulationSize - i).getFitness().setDouble(i + populationSize / 2);
}
Population incommingPopulation = new SimplePopulation();
incommingPopulation.addAll(operands);
List<Individual> operands2 = new ArrayList<Individual>();
for (int i = populationSize; i > 0; i--) {
operands2.add(IndividualMaker.makeIndividual());
operands2.get(populationSize - i).getFitness().setDouble(i);
}
Population population = new SimplePopulation();
population.addAll(operands2);
SimpleReplacementStrategy instance = new SimpleReplacementStrategy();
instance.setOperation(new ReplacementOperation(populationSize));
instance.setPopulation(population);
instance.setIncomingPopulation(incommingPopulation);
instance.perform();
assertEquals(instance.population.size(), populationSize);
assertEquals(instance.incomingPopulation.size(), 0);
assertEquals(instance.population.get(0).getAge(), 1);
Individual[] pA = instance.population.getAll().toArray(new Individual[0]);
Individual[] ipA =
operands
.subList(incomingpopulationSize - populationSize, incomingpopulationSize)
.toArray(new Individual[0]);
assertArrayEquals(pA, ipA);
// population = incommingPopulation
populationSize = 10;
incomingpopulationSize = 10;
operands = new ArrayList<Individual>();
for (int i = incomingpopulationSize; i > 0; i--) {
operands.add(IndividualMaker.makeIndividual());
operands.get(incomingpopulationSize - i).getFitness().setDouble(i + populationSize / 2);
}
incommingPopulation = new SimplePopulation();
incommingPopulation.addAll(operands);
operands2 = new ArrayList<Individual>();
for (int i = populationSize; i > 0; i--) {
operands2.add(IndividualMaker.makeIndividual());
operands2.get(populationSize - i).getFitness().setDouble(i);
}
population = new SimplePopulation();
population.addAll(operands2);
instance = new SimpleReplacementStrategy();
instance.setOperation(new ReplacementOperation(populationSize));
instance.setPopulation(population);
instance.setIncomingPopulation(incommingPopulation);
instance.perform();
assertEquals(instance.population.size(), populationSize);
assertEquals(instance.incomingPopulation.size(), 0);
assertEquals(instance.population.get(0).getAge(), 1);
pA = instance.population.getAll().toArray(new Individual[0]);
ipA =
operands
.subList(incomingpopulationSize - populationSize, incomingpopulationSize)
.toArray(new Individual[0]);
assertArrayEquals(pA, ipA);
// population > incommingPopulation
populationSize = 15;
incomingpopulationSize = 10;
operands = new ArrayList<Individual>();
for (int i = incomingpopulationSize; i > 0; i--) {
operands.add(IndividualMaker.makeIndividual());
operands.get(incomingpopulationSize - i).getFitness().setDouble(i + populationSize / 2);
}
incommingPopulation = new SimplePopulation();
incommingPopulation.addAll(operands);
operands2 = new ArrayList<Individual>();
for (int i = populationSize; i > 0; i--) {
operands2.add(IndividualMaker.makeIndividual());
operands2.get(populationSize - i).getFitness().setDouble(i);
}
population = new SimplePopulation();
population.addAll(operands2);
instance = new SimpleReplacementStrategy();
instance.setOperation(new ReplacementOperation(populationSize));
instance.setPopulation(population);
instance.setIncomingPopulation(incommingPopulation);
instance.perform();
assertEquals(instance.population.size(), incomingpopulationSize);
assertEquals(instance.incomingPopulation.size(), 0);
assertEquals(instance.population.get(0).getAge(), 1);
pA = instance.population.getAll().toArray(new Individual[0]);
ipA = operands.subList(0, incomingpopulationSize).toArray(new Individual[0]);
assertArrayEquals(pA, ipA);
}