Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\laragon\www\backup\clients.if-net.fr\vendor\apimatic\jsonmapper\tests\namespacetest\NamespaceTest.php:21 Stack trace: #0 {main} thrown in C:\laragon\www\backup\clients.if-net.fr\vendor\apimatic\jsonmapper\tests\namespacetest\NamespaceTest.php on line 21