public function get_file_parser_spec()
 {
     $spec = is_file($this->get_resource_dir() . 'results-definition.xml') ? $this->get_resource_dir() . 'results-definition.xml' : false;
     if (!$spec) {
         $extends = $this->get_test_extension();
         if (!empty($extends)) {
             $test_profile = new pts_test_profile($extends);
             $spec = $test_profile->get_file_parser_spec();
         }
     }
     return $spec;
 }