/**
* Retrieve the Test Definition the test session is built from as an AssessmentTest object.
*
* @param string $qtiTestCompilation (e.g. <i>'http://sample/first.rdf#i14363448108243883-|http://sample/first.rdf#i14363448109065884+'</i>)
*
* @return AssessmentTest The AssessmentTest object the current test session is built from.
*/
public static function getTestDefinition($qtiTestCompilation)
{
$directoryIds = explode('|', $qtiTestCompilation);
$data = \tao_models_classes_service_FileStorage::singleton()->getDirectoryById($directoryIds[0])->read(TAOQTITEST_COMPILED_FILENAME);
common_Logger::d("Loading QTI-PHP file from stream");
$doc = new PhpDocument();
$doc->loadFromString($data);
return $doc->getDocumentComponent();
}
