code: protected void compareText(CharacterData control, CharacterData test,
                                 DifferenceListener listener)
          throws DifferenceFoundException {
          compareCharacterData(control, test, listener,
                               control instanceof CDATASection ? CDATA_VALUE : TEXT_VALUE);
      }
docs: Compare text
  @param control
  @param test
  @param listener
  @throws DifferenceFoundException