@Test
 public void testDefaultToggle() {
   Assert.assertTrue(toggleOne.isToggled());
   Assert.assertFalse(toggleTwo.isToggled());
   Assert.assertFalse(toggleThree.isToggled());
   Assert.assertFalse(nonToggled.isToggled());
 }
 @Test
 public void testForcedSelection() {
   group.setCurrentlyToggledButton(toggleThree);
   Assert.assertFalse(toggleOne.isToggled());
   Assert.assertFalse(toggleTwo.isToggled());
   Assert.assertTrue(toggleThree.isToggled());
   Assert.assertFalse(nonToggled.isToggled());
 }
 @Test
 public void testBasicToggle() {
   toggleTwo.notifyListeners(SWT.MouseUp, new Event());
   Assert.assertFalse(toggleOne.isToggled());
   Assert.assertTrue(toggleTwo.isToggled());
   Assert.assertFalse(toggleThree.isToggled());
   Assert.assertFalse(nonToggled.isToggled());
 }