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FYI: PlainDocument.insertUpdate() test

I added a test class for testing PlainDocument.insertUpdate().

2006-06-22  David Gilbert  <>

        * gnu/testlet/javax/swing/text/PlainDocument/
        New test class.


âImprovement makes straight roads, but the crooked roads, without
Improvement, are roads of Genius.â - William Blake
/* -- Tests PlainDocument.insertUpdate()
   Copyright (C) 2006 Roman Kennke (
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
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: JDK1.2

package gnu.testlet.javax.swing.text.PlainDocument;

import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Element;
import javax.swing.text.PlainDocument;

import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;

 * Tests PlainDocument.insertUpdate().
 * @author Roman Kennke (
public class insertUpdate implements Testlet

  DocumentEvent ev;

  public void test(TestHarness harness)

  private void test01(TestHarness h)
    PlainDocument doc = new PlainDocument();
    doc.addDocumentListener(new DocumentListener() {
        public void changedUpdate(DocumentEvent e) {
          ev = e;
        public void insertUpdate(DocumentEvent e) {
          ev = e;
        public void removeUpdate(DocumentEvent e) {
          ev = e;

        doc.insertString(0, "abcde\nabcdef\nabcde\n", null);
        doc.insertString(15, "abcdefghijklmn\n", null);
    catch (BadLocationException ex)
      {"Unexpected BadLocationException");

    DocumentEvent.ElementChange change = ev.getChange(doc.getDefaultRootElement());

    Element[] added = change.getChildrenAdded();
    h.check(change.getIndex(), 2);

    h.check(added.length, 2);
    h.check(added[0].getStartOffset(), 13);
    h.check(added[0].getEndOffset(), 30);
    h.check(added[1].getStartOffset(), 30);
    h.check(added[1].getEndOffset(), 34);

    Element[] removed = change.getChildrenRemoved();
    h.check(removed.length, 1);
    h.check(removed[0].getStartOffset(), 13);
    h.check(removed[0].getEndOffset(), 34);

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