diff --git a/typo3/sysext/core/Tests/Functional/DataHandling/DataHandler/GetUniqueTranslationTest.php b/typo3/sysext/core/Tests/Functional/DataHandling/DataHandler/GetUniqueTranslationTest.php
index d08f52fd5f6f597fd92b957891959d182a04b7c7..6f3d5d951fe9788c0585e5d1ab084162f740d9cb 100644
--- a/typo3/sysext/core/Tests/Functional/DataHandling/DataHandler/GetUniqueTranslationTest.php
+++ b/typo3/sysext/core/Tests/Functional/DataHandling/DataHandler/GetUniqueTranslationTest.php
@@ -66,9 +66,9 @@ class GetUniqueTranslationTest extends AbstractDataHandlerActionTestCase
         ]);
         $originalLanguageRecord = BackendUtility::getRecord('pages', self::PAGE_DATAHANDLER);
 
-        $this->assertEquals('DataHandlerTest changed', $originalLanguageRecord['title']);
-        $this->assertEquals('datahandler', $originalLanguageRecord['nav_title']);
-        $this->assertEquals('datahandler', $translatedRecord['nav_title']);
+        self::assertEquals('DataHandlerTest changed', $originalLanguageRecord['title']);
+        self::assertEquals('datahandler', $originalLanguageRecord['nav_title']);
+        self::assertEquals('datahandler', $translatedRecord['nav_title']);
     }
 
     /**
@@ -92,8 +92,8 @@ class GetUniqueTranslationTest extends AbstractDataHandlerActionTestCase
         ]);
         $originalLanguageRecord = BackendUtility::getRecord('pages', self::PAGE_DATAHANDLER);
         $newRecord = BackendUtility::getRecord('pages', $newPageId);
-        $this->assertEquals('datahandler', $originalLanguageRecord['nav_title']);
-        $this->assertEquals('datahandler0', $newRecord['nav_title']);
+        self::assertEquals('datahandler', $originalLanguageRecord['nav_title']);
+        self::assertEquals('datahandler0', $newRecord['nav_title']);
     }
 
     /**
@@ -116,7 +116,7 @@ class GetUniqueTranslationTest extends AbstractDataHandlerActionTestCase
 
         $defaultLanguageRecord = BackendUtility::getRecord('pages', self::PAGE_DATAHANDLER);
         $newRecord = BackendUtility::getRecord('pages', $newPageId);
-        $this->assertEquals('datahandler', $defaultLanguageRecord['nav_title']);
-        $this->assertEquals('datahandler0', $newRecord['nav_title']);
+        self::assertEquals('datahandler', $defaultLanguageRecord['nav_title']);
+        self::assertEquals('datahandler0', $newRecord['nav_title']);
     }
 }