Fatal error: Uncaught Error: Class "MediaWikiUnitTestCase" not found in /var/www/html/w/extensions/MathSearch/tests/phpunit/unit/Rest/FormulaHashTest.php:11 Stack trace: #0 {main} thrown in /var/www/html/w/extensions/MathSearch/tests/phpunit/unit/Rest/FormulaHashTest.php on line 11