Runs the test case.
Document doc;
DocumentType docType;
NamedNodeMap entityList;
doc = (Document) load("staff", false);
docType = doc.getDoctype();
assertNotNull("docTypeNotNull", docType);
entityList = docType.getEntities();
assertNotNull("entitiesNotNull", entityList);
if (("image/svg+xml".equals(getContentType()))) {
assertSize("entitySizeSVG", 7, entityList);
} else {
assertSize("entitySize", 5, entityList);
}