/*
* 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.unsupervised.attribute;
import weka.core.Attribute;
import weka.core.Instances;
import weka.core.SelectedTag;
import weka.filters.AbstractFilterTest;
import weka.filters.Filter;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Tests Add. Run from the command line with:<p>
* java weka.filters.unsupervised.attribute.AddTest
*
* @author <a href="mailto:len@reeltwo.com">Len Trigg</a>
* @version $Revision: 1.6 $
*/
public class AddTest extends AbstractFilterTest {
public AddTest(String name) { super(name); }
/** Creates a default Add */
public Filter getFilter() {
return new Add();
}
/** Creates a specialized Add */
public Filter getFilter(int pos) {
Add af = new Add();
af.setAttributeIndex("" + (pos + 1));
return af;
}
public void testAddFirst() {
m_Filter = getFilter(0);
testBuffered();
}
public void testAddLast() {
m_Filter = getFilter(m_Instances.numAttributes() - 1);
testBuffered();
}
/**
* Checks the generated attribute type.
*/
protected void testType(int attType) {
Instances icopy = new Instances(m_Instances);
Instances result = null;
try {
m_Filter.setInputFormat(icopy);
} catch (Exception ex) {
ex.printStackTrace();
fail("Exception thrown on setInputFormat(): \n" + ex.getMessage());
}
try {
result = Filter.useFilter(icopy, m_Filter);
assertNotNull(result);
} catch (Exception ex) {
ex.printStackTrace();
fail("Exception thrown on useFilter(): \n" + ex.getMessage());
}
assertEquals(attType, result.attribute(result.numAttributes() - 1).type());
}
public void testAddNominal() {
m_Filter = getFilter();
((Add)m_Filter).setNominalLabels("hello,there,bob");
testBuffered();
testType(Attribute.NOMINAL);
}
public void testAddString() {
m_Filter = getFilter();
((Add) m_Filter).setAttributeType(new SelectedTag(Attribute.STRING, Add.TAGS_TYPE));
testBuffered();
testType(Attribute.STRING);
}
public void testAddDate() {
m_Filter = getFilter();
((Add) m_Filter).setAttributeType(new SelectedTag(Attribute.DATE, Add.TAGS_TYPE));
testBuffered();
testType(Attribute.DATE);
}
public static Test suite() {
return new TestSuite(AddTest.class);
}
public static void main(String[] args){
junit.textui.TestRunner.run(suite());
}
}