Runs the test case.
Document doc;
NodeList elementList;
Node employeeNode;
NodeList childList;
Node oldChild;
Node removedChild;
String childName;
String oldName;
doc = (Document) load("hc_staff", true);
elementList = doc.getElementsByTagName("p");
employeeNode = elementList.item(1);
childList = employeeNode.getChildNodes();
oldChild = childList.item(0);
oldName = oldChild.getNodeName();
removedChild = employeeNode.removeChild(oldChild);
assertNotNull("notnull", removedChild);
childName = removedChild.getNodeName();
assertEquals("nodeName", oldName, childName);