Fatal error: Uncaught Error: Class "MediaWiki\Tests\Unit\Password\Pbkdf2PasswordTestCase" not found in /var/www/html/w/tests/phpunit/unit/includes/Password/Pbkdf2PasswordUsingHashExtensionTest.php:12 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/unit/includes/Password/Pbkdf2PasswordUsingHashExtensionTest.php on line 12