diff --git a/_test/cases/inc/safefn.test.php b/_test/cases/inc/safefn.test.php
new file mode 100644
index 0000000000000000000000000000000000000000..fb0d812d75a11540477de20177b75cc899e9c871
--- /dev/null
+++ b/_test/cases/inc/safefn.test.php
@@ -0,0 +1,33 @@
+<?php
+// use no mbstring help here
+if(!defined('UTF8_NOMBSTRING')) define('UTF8_NOMBSTRING',1);
+require_once DOKU_INC.'inc/utf8.php';
+require_once DOKU_INC.'inc/SafeFN.class.php';
+
+class safeFN_test extends UnitTestCase {
+
+
+    function test1(){
+        // we test multiple cases here - format: string, repl, additional, test
+        $tests   = array();
+        $tests[] = array('asciistring','asciistring');
+        $tests[] = array('ascii-_/.string','ascii-_/.string');
+        $tests[] = array('AName','%x%1a.ame');
+        $tests[] = array('A Name','%x%0%1a.ame');
+        $tests[] = array('Another...Name','%x.nother...%1a.ame');
+        $tests[] = array('Aß∂ƒName','%x%5b%6oy%aa%1a.ame');
+        $tests[] = array('A%ß-∂_.ƒName','%x%%5b.-%6oy._.%aa%1a.ame');
+        $tests[] = array('A%%ß-∂_.ƒName','%x%%%5b.-%6oy._.%aa%1a.ame');
+        $tests[] = array('데이터도 함께 복원됩니다. 강력한','%zf4%13dg%15ao%zhg%0%164o%yig%0%11at%138w%zk9%zag%zb8..%0%xyt%10cl%164c');
+        $tests[] = array('совместимая','%td%ta%sy%t8%t1%td%te%t4%t8%sw%tr');
+        $tests[] = array('нехватка_файлового_пространства_на_сервере_p0-squid.some.domain.1270211897.txt.gz','%t9%t1%th%sy%sw%te%t6%sw._%tg%sw%t5%t7%ta%sy%ta%sz%ta._%tb%tc%ta%td%te%tc%sw%t9%td%te%sy%sw._%t9%sw._%td%t1%tc%sy%t1%tc%t1._p0-squid.some.domain.1270211897.txt.gz');
+
+        foreach($tests as $test){
+            list($utf8,$safe) = $test;
+            $this->assertEqual(SafeFN::encode($utf8),$safe);
+            $this->assertEqual(SafeFN::decode($safe),$utf8);
+        }
+    }
+
+}
+//Setup VIM: ex: et ts=4 enc=utf-8 :