/*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright (C) 2002 University of Waikato
*/
package weka.filters.unsupervised.attribute;
import weka.core.Instances;
import weka.filters.AbstractFilterTest;
import weka.filters.Filter;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Tests Reorder. Run from the command line with:<p>
* java weka.filters.unsupervised.attribute.ReorderTest
*
* @author FracPete (fracpete at waikato dot ac dot nz)
* @version $Revision: 8034 $
*/
public class ReorderTest extends AbstractFilterTest {
public ReorderTest(String name) {
super(name);
}
/** Creates a default Reorder */
public Filter getFilter() {
return getFilter("first-last");
}
/** Creates a specialized Reorder */
public Filter getFilter(String rangelist) {
try {
Reorder af = new Reorder();
af.setAttributeIndices(rangelist);
return af;
} catch (Exception ex) {
ex.printStackTrace();
fail("Exception setting attribute range: " + rangelist
+ "\n" + ex.getMessage());
}
return null;
}
public void testTypical() {
m_Filter = getFilter("2,1");
Instances result = useFilter();
int origNum = m_Instances.numAttributes();
assertEquals(2, result.numAttributes());
assertTrue(result.attribute(1).name().endsWith(m_Instances.attribute(0).name()));
assertTrue(result.attribute(0).name().endsWith(m_Instances.attribute(1).name()));
}
public void testTypical2() {
m_Filter = getFilter("3-4");
Instances result = useFilter();
int origNum = m_Instances.numAttributes();
assertEquals(2, result.numAttributes());
assertTrue(result.attribute(0).name().endsWith(m_Instances.attribute(2).name()));
assertTrue(result.attribute(1).name().endsWith(m_Instances.attribute(3).name()));
}
public void testTypical3() {
m_Filter = getFilter("2-last,1");
Instances result = useFilter();
int origNum = m_Instances.numAttributes();
assertEquals(origNum, result.numAttributes());
assertTrue(result.attribute(0).name().endsWith(m_Instances.attribute(1).name()));
assertTrue(result.attribute(1).name().endsWith(m_Instances.attribute(2).name()));
assertTrue(result.attribute(origNum - 1).name().endsWith(m_Instances.attribute(0).name()));
}
public static Test suite() {
return new TestSuite(ReorderTest.class);
}
public static void main(String[] args){
junit.textui.TestRunner.run(suite());
}
}