Runs the test case.
Document doc;
NamedNodeMap attributes;
Node element;
Attr attribute;
Attr attributeRemoved;
NodeList elementList;
doc = (Document) load("staffNS", true);
elementList = doc.getElementsByTagNameNS("*", "employee");
element = elementList.item(0);
attributes = element.getAttributes();
attributeRemoved = (Attr) attributes.removeNamedItemNS("http://www.w3.org/2000/xmlns/", "xmlns");
attribute = (Attr) attributes.getNamedItemNS("http://www.w3.org/2000/xmlns/", "xmlns");
assertNull("namednodemapremovenameditemns04_1", attribute);
attributeRemoved = (Attr) attributes.removeNamedItemNS("http://www.w3.org/2000/xmlns/", "dmstc");
attribute = (Attr) attributes.getNamedItemNS("http://www.w3.org/2000/xmlns/", "dmstc");
assertNull("namednodemapremovenameditemns04_2", attribute);