diff --git a/_test/tests/inc/PassHash.test.php b/_test/tests/inc/PassHash.test.php
index b6cb070903861fd7bf0859b24fc939de9c9543ab..1d34aa696804b8100dbdf5e1b38489c993839eb7 100644
--- a/_test/tests/inc/PassHash.test.php
+++ b/_test/tests/inc/PassHash.test.php
@@ -5,7 +5,7 @@
  *
  * most tests are in auth_password.test.php
  */
-class PassHash_test extends PHPUnit_Framework_TestCase {
+class PassHash_test extends DokuWikiTest {
 
     function test_hmac(){
         // known hashes taken from https://code.google.com/p/yii/issues/detail?id=1942
diff --git a/_test/tests/inc/auth_password.test.php b/_test/tests/inc/auth_password.test.php
index 27e03be60a2df0c8a419c82602f022596dc9ca34..07b9f5bb208fe727adaaccd3e8ef4530cb8ec756 100644
--- a/_test/tests/inc/auth_password.test.php
+++ b/_test/tests/inc/auth_password.test.php
@@ -1,6 +1,6 @@
 <?php
 
-class auth_password_test extends PHPUnit_Framework_TestCase {
+class auth_password_test extends DokuWikiTest {
 
     // hashes for the password foo$method, using abcdefgh as salt
     var $passes = array(
diff --git a/_test/tests/inc/parser/parser.inc.php b/_test/tests/inc/parser/parser.inc.php
index 61f15678bad658fecee6b74b7287335f0056f72f..f1207b11970484a327ec40f10c3517c15bad7c75 100644
--- a/_test/tests/inc/parser/parser.inc.php
+++ b/_test/tests/inc/parser/parser.inc.php
@@ -3,7 +3,7 @@
 require_once DOKU_INC . 'inc/parser/parser.php';
 require_once DOKU_INC . 'inc/parser/handler.php';
 
-abstract class TestOfDoku_Parser extends PHPUnit_Framework_TestCase {
+abstract class TestOfDoku_Parser extends DokuWikiTest {
 
     var $P;
     var $H;
diff --git a/_test/tests/inc/parser/renderer_resolveinterwiki.test.php b/_test/tests/inc/parser/renderer_resolveinterwiki.test.php
index 7b43b6d627c47f6050eb6da67170d38954e524d9..dd1ed1d3f64f488dbd1913b817d89d1864536940 100644
--- a/_test/tests/inc/parser/renderer_resolveinterwiki.test.php
+++ b/_test/tests/inc/parser/renderer_resolveinterwiki.test.php
@@ -5,7 +5,7 @@ require_once DOKU_INC . 'inc/parser/renderer.php';
 /**
  * Tests for Doku_Renderer::_resolveInterWiki()
  */
-class Test_resolveInterwiki extends PHPUnit_Framework_TestCase {
+class Test_resolveInterwiki extends DokuWikiTest {
 
     function testDefaults() {
         $Renderer = new Doku_Renderer();
diff --git a/_test/tests/inc/utf8_romanize.test.php b/_test/tests/inc/utf8_romanize.test.php
index d08346faae72e6c15fcbfc3422b112b287830d6c..353d48c00b3d3315498bc1256465c7e8e3ca7011 100644
--- a/_test/tests/inc/utf8_romanize.test.php
+++ b/_test/tests/inc/utf8_romanize.test.php
@@ -5,7 +5,7 @@ if(!defined('UTF8_NOMBSTRING')) define('UTF8_NOMBSTRING',1);
 /**
  * @group slow
  */
-class utf8_romanize_test extends PHPUnit_Framework_TestCase {
+class utf8_romanize_test extends DokuWikiTest {
 
     /**
      * Check Japanese romanization