+ $this->mergeMwGlobalArrayValue( 'wgContentHandlers', [
+ 'testing' => DummyContentHandlerForTesting::class,
+ 'testing-nontext' => DummyNonTextContentHandler::class,
+ ] );
+
+ $oldContent = $oldContentArgs ? self::makeContent( ...$oldContentArgs ) : null;
+ $newContent = $newContentArgs ? self::makeContent( ...$newContentArgs ) : null;
+