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// addMouseWheelListener.java --
// Copyright (C) 2011 Pavel Tisnovsky <ptisnovs@redhat.com>
// This file is part of Mauve.
// 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.
// Tags: GUI
// Uses: ../LocationTests
package gnu.testlet.java.awt.Canvas;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import gnu.testlet.java.awt.LocationTests;
import java.awt.*;
import java.awt.event.*;
/**
* Check if MouseWheelListener could be registered for an AWT Canvas.
*/
public class addMouseWheelListener
implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
Canvas canvas = new Canvas();
canvas.setBackground(Color.blue);
// array which will be filled by registered listeners
MouseWheelListener[] mouseWheelListeners;
// get all registered listeners
mouseWheelListeners = canvas.getMouseWheelListeners();
harness.check(mouseWheelListeners.length, 0);
// register new listener
canvas.addMouseWheelListener(
new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent e)
{
// empty
}
@Override
public String toString()
{
return "myMouseWheelListener";
}
}
);
// get all registered listeners
mouseWheelListeners = canvas.getMouseWheelListeners();
harness.check(mouseWheelListeners.length, 1);
// check if the proper listener is used
harness.check(mouseWheelListeners[0].toString(), "myMouseWheelListener");
}
}
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