public void test(TestHarness harness)
{
DefaultComboBoxModel m = new DefaultComboBoxModel();
m.addListDataListener(this);
m.addElement("A");
harness.check(m.getSize(), 1);
harness.check(m.getElementAt(0), "A");
harness.check(m.getSelectedItem(), "A");
harness.check(events.size(), 2);
ListDataEvent e = (ListDataEvent) events.get(0);