Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/benjamincb/demos/acdg-site/vendor/symfony/mailer/Test/TransportFactoryTestCase.php:29 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony/mailer/Test/TransportFactoryTestCase.php on line 29