Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in C:\xampp\htdocs\extensions\TemplateData\tests\phpunit\TemplateDataBlobTest.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\TemplateData\tests\phpunit\TemplateDataBlobTest.php on line 22