code: private ComparisonState compareCharacterData(CharacterData control,
                                                   XPathContext controlContext,
                                                   CharacterData test,
                                                   XPathContext testContext) {
          return compare(new Comparison(ComparisonType.TEXT_VALUE, control,
                                        getXPath(controlContext),
                                        control.getData(), getParentXPath(controlContext),
                                        test, getXPath(testContext),
                                        test.getData(), getParentXPath(testContext)));
      }
docs: Compares textual content.