Runs the test case.
Document doc;
NodeList elementList;
Node nameNode;
CharacterData child;
String childData;
doc = (Document) load("staff", false);
elementList = doc.getElementsByTagName("name");
nameNode = elementList.item(0);
child = (CharacterData) nameNode.getFirstChild();
childData = child.getData();
assertEquals("characterdataGetDataAssert", "Margaret Martin", childData);