Runs the test case.
Document doc;
NodeList elementList;
Node testAddr;
Node textNode;
NamedNodeMap attrList;
doc = (Document) load("hc_staff", false);
elementList = doc.getElementsByTagName("acronym");
testAddr = elementList.item(0);
textNode = testAddr.getFirstChild();
attrList = textNode.getAttributes();
assertNull("text_attributes_is_null", attrList);