// 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, Inc., 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301 USA.
package gnu.testlet.javax.swing.JComboBox;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import javax.swing.ComboBoxEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.plaf.UIResource;
import javax.swing.plaf.metal.MetalComboBoxEditor;
/**
* Some checks for the getEditor() method in the {@link JComboBox} class.
*/
public class getEditor
implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
testDefault(harness);
testPR30337(harness);
}
/**
* Tests the default value.
*
* @param harness the test harness to use
*/
private void testDefault(TestHarness harness)
{
// use a known look and feel
try
{
UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
}
catch (Exception e)
{
harness.fail("Problem setting MetalLookAndFeel");
}
JComboBox c1 = new JComboBox(new Object[] {"A", "B", "C"});
ComboBoxEditor editor = c1.getEditor();
// check default value
harness.check(editor instanceof MetalComboBoxEditor.UIResource);
c1.setEditor(new MetalComboBoxEditor());
harness.check(!(c1.getEditor() instanceof UIResource));
}
/**
* A combo box that returns null for getEditor(). This is used in the
* following test.
*/
private class TestComboBox extends JComboBox
{
public ComboBoxEditor getEditor()
{
return null;
}
}
/**
* The Classpath PR30337 overrides getEditor() to return null and expects
* the JComboBox to not throw an NPE.
*
* @param h the test harness
*/
private void testPR30337(TestHarness h)
{
// Test with default (non-editable) combo box. No NPE is thrown.
JComboBox cb = new TestComboBox();
JFrame f = new JFrame();
boolean pass = true;
try
{
f.getContentPane().add(cb);
f.setVisible(true);
}
catch (NullPointerException ex)
{
pass = false;
}
h.check(pass);
// Test with editable combo box (NPE is thrown).
cb = new TestComboBox();
f = new JFrame();
pass = false;
try
{
cb.setEditable(true);
f.getContentPane().add(cb);
f.setVisible(true);
}
catch (NullPointerException ex)
{
pass = true;
}
h.check(pass);
}
}