// Tags: JDK1.4
// Copyright (C) 2005 David Gilbert <david.gilbert@object-refinery.com>
// Mauve 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, or (at your option)
// any later version.
// Mauve 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 Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
package gnu.testlet.javax.swing.DefaultComboBoxModel;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.util.List;
import javax.swing.DefaultComboBoxModel;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;
/**
* Some checks for the setSelectedItem() method in the
* {@link DefaultComboBoxModel} class.
*/
public class setSelectedItem
implements Testlet, ListDataListener
{
List events = new java.util.ArrayList();
public void contentsChanged(ListDataEvent event)
{
events.add(event);
}
public void intervalAdded(ListDataEvent event)
{
events.add(event);
}
public void intervalRemoved(ListDataEvent event)
{
events.add(event);
}
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
DefaultComboBoxModel m = new DefaultComboBoxModel(new Object[] {"A", "B",
"C"});
harness.check(m.getSelectedItem(), "A");
m.addListDataListener(this);
// first set the selected item to one of the elements in the list...
m.setSelectedItem("C");
harness.check(events.size(), 1);
harness.check(m.getSelectedItem(), "C");
ListDataEvent event = (ListDataEvent) events.get(0);
harness.check(event.getType(), ListDataEvent.CONTENTS_CHANGED);
harness.check(event.getIndex0(), -1);
harness.check(event.getIndex1(), -1);
events.clear();
// now set the selected item to null...
m.setSelectedItem(null);
harness.check(m.getSelectedItem(), null);
harness.check(events.size(), 1);
event = (ListDataEvent) events.get(0);
harness.check(event.getType(), ListDataEvent.CONTENTS_CHANGED);
harness.check(event.getIndex0(), -1);
harness.check(event.getIndex1(), -1);
events.clear();
// now set the selected item to something not in the list...
m.setSelectedItem("Z");
// confirm that setSelectedItem simply returned without doing
// anything...
harness.check(m.getSelectedItem(), null);
harness.check(m.getSize(), 3);
harness.check(m.getIndexOf("Z"), -1);
harness.check(events.size(), 0);
// now set the selected item to the same value - no event should be
// generated...
m.setSelectedItem("Z");
harness.check(events.size(), 0);
// make sure setting null when already null doesn't generate an event
m.setSelectedItem(null);
events.clear();
m.setSelectedItem(null);
harness.check(events.size(), 0);
}
}