Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/html/stz-api/vendor/symfony/psr-http-message-bridge/Tests/Functional/CovertTest.php:35 Stack trace: #0 {main} thrown in /var/www/html/stz-api/vendor/symfony/psr-http-message-bridge/Tests/Functional/CovertTest.php on line 35