Runs the test case.
Document doc;
NodeList elementList;
Node employeeNode;
NodeList childList;
Node oldChild;
Node newChild;
Node child;
String childName;
Node replacedNode;
doc = (Document) load("hc_staff", true);
elementList = doc.getElementsByTagName("p");
employeeNode = elementList.item(1);
childList = employeeNode.getChildNodes();
oldChild = childList.item(0);
newChild = doc.createElement("br");
replacedNode = employeeNode.replaceChild(newChild, oldChild);
child = childList.item(0);
childName = child.getNodeName();
assertEqualsAutoCase("element", "nodeName", "br", childName);