<?php
+use MediaWiki\MediaWikiServices;
+
/**
* @group Editing
*
protected function setUp() {
parent::setUp();
+ $contLang = MediaWikiServices::getInstance()->getContentLanguage();
+ $this->setContentLang( $contLang );
+
$this->setMwGlobals( [
'wgExtraNamespaces' => [
12312 => 'Dummy',