Runs the test case.
Document doc;
NodeList elementList;
Node emNode;
Node nsNode;
String nsName;
doc = (Document) load("hc_staff", false);
elementList = doc.getElementsByTagName("em");
emNode = elementList.item(1);
nsNode = emNode.getNextSibling();
nsName = nsNode.getNodeName();
assertEquals("whitespace", "#text", nsName);