/*
* Encog(tm) Core v3.3 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2014 Heaton Research, Inc.
*
* Licensed 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.persist;
import java.io.File;
import java.io.IOException;
import java.util.List;
import junit.framework.Assert;
import org.encog.ml.ea.genome.Genome;
import org.encog.ml.ea.species.Species;
import org.encog.ml.prg.EncogProgram;
import org.encog.ml.prg.EncogProgramContext;
import org.encog.ml.prg.extension.StandardExtensions;
import org.encog.ml.prg.train.PrgPopulation;
import org.encog.parse.expression.common.RenderCommonExpression;
import org.encog.util.TempDir;
import org.encog.util.obj.SerializeObject;
import org.junit.After;
import org.junit.Test;
public class TestPersistEPLPopulation {
public final TempDir TEMP_DIR = new TempDir();
public final File EG_FILENAME = TEMP_DIR.createFile("encogtest.eg");
public final File SERIAL_FILENAME = TEMP_DIR.createFile("encogtest.ser");
private PrgPopulation create()
{
EncogProgramContext context = new EncogProgramContext();
context.defineVariable("x");
StandardExtensions.createAll(context);
PrgPopulation pop = new PrgPopulation(context,10);
EncogProgram prg1 = new EncogProgram(context);
EncogProgram prg2 = new EncogProgram(context);
prg1.compileExpression("x+1");
prg2.compileExpression("(x+5)/2");
Species defaultSpecies = pop.createSpecies();
defaultSpecies.add(prg1);
defaultSpecies.add(prg2);
return pop;
}
@Test
public void testPersistEG()
{
PrgPopulation pop = create();
EncogDirectoryPersistence.saveObject(EG_FILENAME, pop);
PrgPopulation pop2 = (PrgPopulation)EncogDirectoryPersistence.loadObject(EG_FILENAME);
validate(pop2);
}
@Test
public void testPersistSerial() throws IOException, ClassNotFoundException
{
PrgPopulation pop = create();
validate(pop);
SerializeObject.save(SERIAL_FILENAME, pop);
PrgPopulation pop2 = (PrgPopulation)SerializeObject.load(SERIAL_FILENAME);
validate(pop2);
}
private void validate(PrgPopulation pop)
{
List<Genome> list = pop.flatten();
Assert.assertEquals(2, list.size());
EncogProgram prg1 = (EncogProgram)list.get(0);
EncogProgram prg2 = (EncogProgram)list.get(1);
RenderCommonExpression render = new RenderCommonExpression();
Assert.assertEquals("(x+1)", render.render(prg1));
Assert.assertEquals("((x+5)/2)", render.render(prg2));
}
@After
public void tearDown() throws Exception {
TEMP_DIR.dispose();
}
}