Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/demo.ininli.ca/releases/18/vendor/tentwofour/twig/tests/Extension/DiffExtensionTest.php:13 Stack trace: #0 {main} thrown in /var/www/html/demo.ininli.ca/releases/18/vendor/tentwofour/twig/tests/Extension/DiffExtensionTest.php on line 13