Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /var/www/html/orian-wiki/tests/phpunit/includes/diff/DifferenceEngineSlotDiffRendererTest.php:6
Stack trace:
#0 {main}
thrown in /var/www/html/orian-wiki/tests/phpunit/includes/diff/DifferenceEngineSlotDiffRendererTest.php on line 6