Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/html/wiki_2023/extensions/SemanticResultFormats/tests/phpunit/Unit/iCalendar/IcalTimezoneFormatterTest.php:17 Stack trace: #0 {main} thrown in /var/www/html/wiki_2023/extensions/SemanticResultFormats/tests/phpunit/Unit/iCalendar/IcalTimezoneFormatterTest.php on line 17