*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
MyFileChooser fc = new MyFileChooser();
MyMetalFileChooserUI ui = new MyMetalFileChooserUI(fc);
fc.setUI(ui);
ComboBoxModel m = ui.createFilterComboBoxModel();
harness.check(m.getSize(), 1);
harness.check(m.getElementAt(0), fc.getFileFilter());
ComboBoxModel m2 = ui.createFilterComboBoxModel();
harness.check(m != m2);
}