Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/smagamf/chloe_garden/vendor/symfony/mime/Tests/Encoder/IdnAddressEncoderTest.php:16 Stack trace: #0 {main} thrown in /home/smagamf/chloe_garden/vendor/symfony/mime/Tests/Encoder/IdnAddressEncoderTest.php on line 16