Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/html/simplesamlphp/vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/TestCase.php:29
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/TestCase.php on line 29