Package org.encog.persist

Source Code of org.encog.persist.TestPersistBayes

/*
* 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 junit.framework.Assert;
import junit.framework.TestCase;

import org.encog.ml.bayesian.BayesianEvent;
import org.encog.ml.bayesian.BayesianNetwork;
import org.encog.util.TempDir;
import org.encog.util.obj.SerializeObject;

public class TestPersistBayes extends TestCase {
 
  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");
   
  public BayesianNetwork create()
  {
    BayesianNetwork network = new BayesianNetwork();
    BayesianEvent a = network.createEvent("a");
    BayesianEvent b = network.createEvent("b");

    network.createDependency(a, b);
    network.finalizeStructure();
    a.getTable().addLine(0.5, true); // P(A) = 0.5
    b.getTable().addLine(0.2, true, true); // p(b|a) = 0.2
    b.getTable().addLine(0.8, true, false);// p(b|~a) = 0.8   
    network.validate();
    return network;
  }
 
  public void validate(BayesianNetwork network)
  {
    Assert.assertEquals(3, network.calculateParameterCount());
  }
 
  public void testPersistEG()
  {
    BayesianNetwork network = create();

    EncogDirectoryPersistence.saveObject(EG_FILENAME, network);
    BayesianNetwork network2 = (BayesianNetwork)EncogDirectoryPersistence.loadObject(EG_FILENAME);

    validate(network2);
  }
 
  public void testPersistSerial() throws IOException, ClassNotFoundException
  {
    BayesianNetwork network = create();
   
    SerializeObject.save(SERIAL_FILENAME, network);
    BayesianNetwork network2 = (BayesianNetwork)SerializeObject.load(SERIAL_FILENAME);
       
    validate(network2);
  }
 
  @Override
  protected void tearDown() throws Exception {
    super.tearDown();
    TEMP_DIR.dispose();
  }

 
}
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