/**
  * Check access rights for a test question
  * This checks also tests with random selection of questions
  *
  * @param    int     	object id (question pool or test)
  * @param    int         usage id (not yet used)
  * @return   boolean     access given (true/false)
  */
 private function checkAccessTestQuestion($obj_id, $usage_id = 0)
 {
     global $ilAccess;
     // give access if direct usage is readable
     if ($this->checkAccessObject($obj_id)) {
         return true;
     }
     $obj_type = ilObject::_lookupType($obj_id);
     if ($obj_type == 'qpl') {
         // give access if question pool is used by readable test
         // for random selection of questions
         include_once './Modules/Test/classes/class.ilObjTestAccess.php';
         $tests = ilObjTestAccess::_getRandomTestsForQuestionPool($obj_id);
         foreach ($tests as $test_id) {
             if ($this->checkAccessObject($test_id, 'tst')) {
                 return true;
             }
         }
     }
     return false;
 }