public void test(TestHarness harness)
{
JInternalFrame f = new JInternalFrame("F1");
f.addInternalFrameListener(this);
f.dispose();
harness.check(f.isClosed());
harness.check(!f.isSelected());
harness.check(!f.isVisible());
harness.check(events.size(), 1);
InternalFrameEvent event = (InternalFrameEvent) events.get(0);