Runs the test case.
Document doc;
DocumentType docType;
NamedNodeMap notations;
Notation notationNode;
String publicId;
doc = (Document) load("staff", false);
docType = doc.getDoctype();
assertNotNull("docTypeNotNull", docType);
notations = docType.getNotations();
assertNotNull("notationsNotNull", notations);
notationNode = (Notation) notations.getNamedItem("notation1");
publicId = notationNode.getPublicId();
assertEquals("publicId", "notation1File", publicId);