Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/smagamf/chloe_garden/vendor/symfony/http-foundation/Tests/RequestMatcher/HeaderRequestMatcherTest.php:18 Stack trace: #0 {main} thrown in /home/smagamf/chloe_garden/vendor/symfony/http-foundation/Tests/RequestMatcher/HeaderRequestMatcherTest.php on line 18