public void testXPointer() {
IRIFactory f = IRIFactory.jenaImplementation();
IRI base = f.create("http://example.org/");
IRI frag = base.resolve("http://eg.com/test.txt#xpointer(/unit[5])");
Iterator<Violation> it = frag.violations(false);
assertTrue(it.hasNext()) ;
// while (it.hasNext()) {
// System.err.println(it.next().getLongMessage());
// }