final String expression = "/root/node2";
final XPathExtractor extractor = initialiseExtractor(expression, XPathReturnType.NODESET);
final Document doc = getDocumentForString(TEST_XML_SINGLE_RESULT);
final Object objResult = extractor.transform(doc);
assertThat(objResult, instanceOf(NodeList.class));
NodeList result = (NodeList) objResult;
assertEquals("Wrong value extracted.", "node2", result.item(0).getNodeName());
}