protected void testChanged(Document doc, TestListener listener) throws Exception {
listener.reset();
org.w3c.dom.Document oldXml = DocumentHelper.readDocument(doc.getInputStream());
NamespaceHelper xml = new NamespaceHelper("http://apache.org/lenya/test", "", "test");
xml.save(doc.getOutputStream());
DocumentHelper.writeDocument(oldXml, doc.getOutputStream());
assertFalse(listener.wasChanged());
doc.getRepositoryNode().getSession().commit();
Thread.currentThread().sleep(100);