public void test(TestHarness harness)
{
harness.checkPoint("addElement(Object)");
DefaultListModel m1 = new DefaultListModel();
MyListDataListener listener = new MyListDataListener();
m1.addListDataListener(listener);
m1.addElement("A");
harness.check(m1.getElementAt(0).equals("A"));
ListDataEvent event = listener.getEvent();
harness.check(event.getType(), ListDataEvent.INTERVAL_ADDED);