// Tags: JDK1.3
// Copyright (C) 2005, 2006 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, Inc., 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301 USA.
package gnu.testlet.javax.swing.JComponent;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.awt.event.FocusListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyVetoException;
import java.beans.VetoableChangeListener;
import java.util.EventListener;
import javax.swing.JComponent;
import javax.swing.event.AncestorEvent;
import javax.swing.event.AncestorListener;
/**
* Some tests for the <code>getListeners(Class)</code> method in the
* {@link JComponent} class.
*/
public class getListeners implements Testlet, AncestorListener {
class TestComponent extends JComponent
{
}
class MyPropertyChangeListener
implements PropertyChangeListener
{
public void propertyChange(PropertyChangeEvent e)
{
// ignore
}
}
class MyVetoableChangeListener implements VetoableChangeListener
{
public void vetoableChange(PropertyChangeEvent e)
throws PropertyVetoException
{
// ignore
}
}
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
TestComponent c = new TestComponent();
c.addAncestorListener(this);
EventListener[] listeners = c.getListeners(AncestorListener.class);
harness.check(listeners.length, 1);
harness.check(listeners[0], this);
// try a listener type that isn't registered
listeners = c.getListeners(FocusListener.class);
harness.check(listeners.length, 0);
c.removeAncestorListener(this);
listeners = c.getListeners(AncestorListener.class);
harness.check(listeners.length, 0);
// try a PropertyChangeListener
PropertyChangeListener pcl = new MyPropertyChangeListener();
c.addPropertyChangeListener(pcl);
listeners = c.getListeners(PropertyChangeListener.class);
harness.check(listeners.length, 1);
if (listeners.length > 0)
harness.check(listeners[0], pcl);
else
harness.check(false);
// try a VetoableChangeListener
VetoableChangeListener vcl = new MyVetoableChangeListener();
c.addVetoableChangeListener(vcl);
listeners = c.getListeners(VetoableChangeListener.class);
harness.check(listeners.length, 1);
if (listeners.length > 0)
harness.check(listeners[0], vcl);
else
harness.check(false);
// try a null argument
boolean pass = false;
try
{
listeners = c.getListeners(null);
}
catch (NullPointerException e)
{
pass = true;
}
harness.check(pass);
/* Doesn't compile with 1.5
// try a class that isn't a listener
pass = false;
try
{
listeners = c.getListeners(Integer.class);
}
catch (ClassCastException e)
{
pass = true;
}
harness.check(pass);
*/
}
public void ancestorMoved(AncestorEvent e)
{
// ignored
}
public void ancestorAdded(AncestorEvent e)
{
// ignored
}
public void ancestorRemoved(AncestorEvent e)
{
// ignored
}
}