// Tags: JDK1.2
// Copyright (C) 2003 Sascha Brawer <brawer@dandelis.ch>
// 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, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. */
package gnu.testlet.javax.swing.undo.AbstractUndoableEdit;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import javax.swing.undo.AbstractUndoableEdit;
import javax.swing.undo.CannotUndoException;
/**
* Checks whether the AbstractUndoableEdit.undo method
* works correctly.
*
* @author Sascha Brawer (brawer@dandelis.ch)
*/
public class undo
implements Testlet
{
private class MyEdit
extends AbstractUndoableEdit
{
public boolean undoable;
public boolean canUndo()
{
return undoable;
}
}
public void test(TestHarness harness)
{
MyEdit edit;
Throwable caught;
// Check #1: No exception for undoable = true.
edit = new MyEdit();
edit.undoable = true;
edit.undo();
edit.redo();
harness.check(true);
// Check #2: Exception for undoable = false;
edit.undoable = false;
try
{
edit.undo();
caught = null;
}
catch (Exception ex)
{
caught = ex;
}
harness.check(caught instanceof CannotUndoException);
// Check #3: Exception for dead edit.
AbstractUndoableEdit aue = new AbstractUndoableEdit();
aue.die();
try
{
aue.undo();
caught = null;
}
catch (Exception ex)
{
caught = ex;
}
harness.check(caught instanceof CannotUndoException);
}
}