Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/trairtil/public_html/vendor/sebastian/code-unit/tests/unit/InterfaceUnitTest.php:29 Stack trace: #0 {main} thrown in /home/trairtil/public_html/vendor/sebastian/code-unit/tests/unit/InterfaceUnitTest.php on line 29