@Test
public void testLookupChoiceItemVagueRoot() throws Exception {

    final QtiObjectReadResult<RootNode> result = qtiObjectReader.lookupRootNode(choiceUri);
    assertNotNull(result);
    assertEquals(RootNode.class, result.getRequestedRootNodeClass());
    assertEquals(AssessmentItem.class, result.getRootNode().getClass());
}