function testGetOffsetIsDecorated()
 {
     $course = $this->_createCourseWithTwoLectures();
     $db = new lmbSimpleDb(lmbToolkit::instance()->getDefaultDbConnection());
     $decorated = $db->select('lecture_for_test');
     $iterator = new lmbARRecordSetDecorator($decorated, 'LectureForTest');
     $this->assertEqual($iterator->at(0)->getCourse()->getTitle(), $course->getTitle());
     $this->assertEqual($iterator[0]->getCourse()->getTitle(), $course->getTitle());
     $this->assertEqual($iterator->at(1)->getCourse()->getTitle(), $course->getTitle());
     $this->assertEqual($iterator[1]->getCourse()->getTitle(), $course->getTitle());
 }