// 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.event.SwingPropertyChangeSupport;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.event.SwingPropertyChangeSupport;
/**
* Tests the firePropertyChange() methods in the
* {@link SwingPropertyChangeSupport} class.
*/
public class firePropertyChange
implements Testlet, PropertyChangeListener {
private PropertyChangeEvent lastEvent = null;
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
test1(harness);
test2(harness);
test3(harness);
test4(harness);
}
private void test1(TestHarness harness)
{
harness.checkPoint("(PropertyChangeEvent)");
SwingPropertyChangeSupport s = new SwingPropertyChangeSupport(this);
s.addPropertyChangeListener(this);
PropertyChangeEvent e = new PropertyChangeEvent("SOURCE", "X", "Y", "Z");
s.firePropertyChange(e);
harness.check(this.lastEvent.getSource(), "SOURCE");
harness.check(this.lastEvent.getPropertyName(), "X");
harness.check(this.lastEvent.getOldValue(), "Y");
harness.check(this.lastEvent.getNewValue(), "Z");
// if the old and new values are the same (and non-null), then no listeners
// are notified
this.lastEvent = null;
e = new PropertyChangeEvent("SOURCE", "X", "YY", "YY");
s.firePropertyChange(e);
harness.check(lastEvent, null);
// but if the old and new values are both null, listeners ARE notified
this.lastEvent = null;
e = new PropertyChangeEvent("SOURCE", "X", null, null);
s.firePropertyChange(e);
harness.check(lastEvent, e);
// check that a null argument throws a null pointer exception
this.lastEvent = null;
boolean pass = false;
try
{
s.firePropertyChange(null);
}
catch (NullPointerException npe)
{
pass = true;
}
harness.check(pass);
}
private void test2(TestHarness harness)
{
harness.checkPoint("(String, Object, Object)");
SwingPropertyChangeSupport s = new SwingPropertyChangeSupport("SOURCE");
s.addPropertyChangeListener(this);
s.firePropertyChange("X", "Y", "Z");
harness.check(this.lastEvent.getSource(), "SOURCE");
harness.check(this.lastEvent.getPropertyName(), "X");
harness.check(this.lastEvent.getOldValue(), "Y");
harness.check(this.lastEvent.getNewValue(), "Z");
this.lastEvent = null;
// if both Objects are equal and non-null, no event is generated
this.lastEvent = null;
s.firePropertyChange("X", "Z", "Z");
harness.check(this.lastEvent, null);
// the following should not throw any exceptions
// s.firePropertyChange(null, "Y", "Z");
// s.firePropertyChange("X", null, "Z");
// s.firePropertyChange("X", "Y", null);
}
private void test3(TestHarness harness)
{
harness.checkPoint("(String, boolean, boolean)");
SwingPropertyChangeSupport s = new SwingPropertyChangeSupport("SOURCE");
s.addPropertyChangeListener(this);
s.firePropertyChange("X", false, true);
harness.check(this.lastEvent.getSource(), "SOURCE");
harness.check(this.lastEvent.getPropertyName(), "X");
harness.check(this.lastEvent.getOldValue(), Boolean.FALSE);
harness.check(this.lastEvent.getNewValue(), Boolean.TRUE);
// if both booleans are equal, no event is generated
this.lastEvent = null;
s.firePropertyChange("X", true, true);
harness.check(this.lastEvent, null);
}
private void test4(TestHarness harness)
{
harness.checkPoint("(String, int, int)");
SwingPropertyChangeSupport s = new SwingPropertyChangeSupport("SOURCE");
s.addPropertyChangeListener(this);
s.firePropertyChange("X", 12, 34);
harness.check(this.lastEvent.getSource(), "SOURCE");
harness.check(this.lastEvent.getPropertyName(), "X");
harness.check(this.lastEvent.getOldValue(), new Integer(12));
harness.check(this.lastEvent.getNewValue(), new Integer(34));
// if both ints are equal, no event is generated
this.lastEvent = null;
s.firePropertyChange("X", 99, 99);
harness.check(this.lastEvent, null);
}
public void propertyChange(PropertyChangeEvent e)
{
this.lastEvent = e;
}
}