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-rw-r--r--src/jcgp/tests/PopulationTests.java94
1 files changed, 33 insertions, 61 deletions
diff --git a/src/jcgp/tests/PopulationTests.java b/src/jcgp/tests/PopulationTests.java
index d646b90..474b8d5 100644
--- a/src/jcgp/tests/PopulationTests.java
+++ b/src/jcgp/tests/PopulationTests.java
@@ -1,13 +1,7 @@
package jcgp.tests;
-import static org.junit.Assert.*;
-
-import java.util.Random;
-
-import jcgp.Utilities;
-import jcgp.modules.function.Arithmetic;
-import jcgp.modules.function.FunctionSet;
-import jcgp.parameters.Parameters;
+import static org.junit.Assert.assertTrue;
+import jcgp.CGP.Resources;
import jcgp.population.Chromosome;
import jcgp.population.Population;
@@ -19,9 +13,7 @@ import org.junit.Test;
*
* Tests which cover the behaviour specified for a population.
*
- * - A population should be able to return parents and offspring separately.
- * - It should be possible to iterate through all the chromosomes in a population
- * with one indexing system - parents then offspring.
+ * - It should be possible to iterate through all the chromosomes in a population.
* - When constructed with no arguments, it should generate populationSize
* random chromosomes, distributed according to the EA parameters.
* - If one or more chromosomes are passed into the constructor, it should use them
@@ -34,81 +26,61 @@ import org.junit.Test;
public class PopulationTests {
private Population population;
+ private static Resources resources;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
- // initialise function set
- FunctionSet functionSet = new FunctionSet(new Arithmetic.Addition(), new Arithmetic.Subtraction());
-
- // initialise utilities
- Utilities.setResources(new Random(1234), functionSet);
-
- // initialise parameters
- Parameters.setColumns(20);
- Parameters.setRows(20);
- Parameters.setInputs(2);
- Parameters.setOutputs(4);
- Parameters.setLevelsBack(1);
- Parameters.setMutationRate(10);
- Parameters.setTotalGenerations(100);
- Parameters.setTotalRuns(5);
- Parameters.setPopulationSize(1, 4);
- Parameters.setMaxArity(functionSet.getMaxArity());
+ resources = new Resources();
+
+
+// // initialise function set
+// FunctionSet functionSet = new FunctionSet(new Arithmetic.Addition(), new Arithmetic.Subtraction());
+//
+// // initialise utilities
+// Utilities.setResources(new Random(1234), functionSet);
+//
+// // initialise parameters
+// Resources.setColumns(20);
+// Resources.setRows(20);
+// Resources.setInputs(2);
+// Resources.setOutputs(4);
+// Resources.setLevelsBack(1);
+// Resources.setMutationRate(10);
+// Resources.setTotalGenerations(100);
+// Resources.setTotalRuns(5);
+// Resources.setPopulationSize(1, 4);
+// Resources.setMaxArity(functionSet.getMaxArity());
}
@Before
public void setUp() throws Exception {
- population = new Population();
+ population = new Population(resources);
}
@Test
public void defaultPopulationTest() {
// check that the constructor really generates populationSize chromosomes when none is given
- int offspring = 0, parent = 0;
- while (true) {
- try {
- population.getOffspring(offspring);
- } catch (IndexOutOfBoundsException e) {
- break;
- }
- offspring++;
- }
+ int chromosomes = 0;
while (true) {
try {
- population.getParent(parent);
+ population.getChromosome(chromosomes);
} catch (IndexOutOfBoundsException e) {
break;
}
- parent++;
+ chromosomes++;
}
- assertTrue("Incorrect number of chromosomes generated.", offspring + parent == Parameters.getPopulationSize());
- }
-
- @Test
- public void offspringParentTest() {
- // the first parent should not be the same as the first offspring
- assertTrue("Same chromosome returned as parent and offspring", population.getOffspring(0) != population.getParent(0));
+
+ assertTrue("Incorrect number of chromosomes generated.", chromosomes == (int) resources.get("popSize"));
}
@Test
- public void singleIndexTest() {
- // assuming 1+4
- // the first chromosome should be the first (and only) parent
- assertTrue("Incorrect chromosome returned.", population.getChromosome(0) == population.getParent(0));
- // the next 4 chromosomes should be the offspring, in order
- for (int i = 0; i < Parameters.getOffspringCount(); i++) {
- assertTrue("Incorrect chromosome returned.", population.getChromosome(i + 1) == population.getOffspring(i));
- }
- }
-
- @Test
public void preinitialisedChromosomeTest() {
// the original chromosome that will be cloned
- Chromosome oc = new Chromosome();
+ Chromosome oc = new Chromosome(resources);
// initialise a population with a copy of it
- population = new Population(oc);
+ population = new Population(oc, resources);
// check that the first parent chromosome is identical to, but not the same instance as, the one given
- assertTrue("Incorrect chromosome in population.", population.getParent(0).compareTo(oc) && population.getParent(0) != oc);
+ assertTrue("Incorrect chromosome in population.", population.getChromosome(0).compareTo(oc) && population.getChromosome(0) != oc);
}
}