change error level to ignore notices

_test/bootstrap.php

@@ -15,7 +15,7 @@ require_once DOKU_UNITTEST.'core/TestUtils.php';
 define('SIMPLE_TEST', true);
 
 // basic behaviours
-define('DOKU_E_LEVEL',E_ALL);
+define('DOKU_E_LEVEL',E_ALL ^ E_NOTICE);
 error_reporting(DOKU_E_LEVEL);
 set_time_limit(0);
 ini_set('memory_limit','2048M');