Runs the test case.
Document doc;
NodeList elementList;
Element testAddr;
Node textNode;
int nodeType;
doc = (Document) load("staff", false);
elementList = doc.getElementsByTagName("address");
testAddr = (Element) elementList.item(0);
textNode = testAddr.getFirstChild();
nodeType = (int) textNode.getNodeType();
assertEquals("nodeTextNodeTypeAssert1", 3, nodeType);