Fatal error: Uncaught Error: Class "SpecialPageTestBase" not found in C:\xampp\htdocs\extensions\CheckUser\tests\phpunit\integration\IPContributions\SpecialIPContributionsTest.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\extensions\CheckUser\tests\phpunit\integration\IPContributions\SpecialIPContributionsTest.php on line 26