@Test
 public void testElementRemoved() {
   SoapMessageFormatter element = new SoapMessageFormatter();
   s.elementRemoved(element);
   verify(d, only()).removeElement(element);
 }
 @Test
 public void testElementChanged() {
   SoapMessageFormatter element = new SoapMessageFormatter();
   s.elementChanged(element);
   verify(d, only()).changeElement(element);
 }
 @Test
 public void testElementAdded() {
   SoapMessageFormatter element = new SoapMessageFormatter();
   s.elementAdded(element);
   verify(d, only()).addElement(element);
 }