public function testGetShuffledChoiceIdentifierAtInvalidShuffledChoiceIndex()
 {
     $doc = new XmlDocument();
     $doc->load(self::samplesDir() . 'ims/items/2_1/choice_fixed.xml');
     $session = new AssessmentItemSession($doc->getDocumentComponent());
     $session->beginItemSession();
     $this->setExpectedException('\\OutOfBoundsException', 'No identifier at index 1337.');
     $session->getShuffledChoiceIdentifierAt(0, 1337);
 }