/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Copyright (C) 2002 University of Waikato
*/
package weka.filters.supervised.attribute;
import weka.core.Instances;
import weka.filters.AbstractFilterTest;
import weka.filters.Filter;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Tests NominalToBinary. Run from the command line with:<p>
* java weka.filters.supervised.attribute.NominalToBinaryTest
*
* @author <a href="mailto:len@reeltwo.com">Len Trigg</a>
* @version $Revision: 1.3 $
*/
public class NominalToBinaryTest extends AbstractFilterTest {
public NominalToBinaryTest(String name) { super(name); }
/** Creates an example NominalToBinary */
public Filter getFilter() {
NominalToBinary f = new NominalToBinary();
return f;
}
/** Remove string attributes from default fixture instances */
protected void setUp() throws Exception {
super.setUp();
// NominalToBinary requires a class attribute be set
m_Instances.setClassIndex(m_Instances.numAttributes() - 1);
}
public void testTypical() {
Instances result = useFilter();
// Number of attributes changes
assertEquals(m_Instances.numAttributes() + 3, result.numAttributes());
// Number of instances shouldn't change
assertEquals(m_Instances.numInstances(), result.numInstances());
// Eibe can enhance this to check the binarizing is correct.
}
public static Test suite() {
return new TestSuite(NominalToBinaryTest.class);
}
public static void main(String[] args){
junit.textui.TestRunner.run(suite());
}
}