Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\slip\laravel-webhooks\vendor\ratchet\rfc6455\tests\unit\Messaging\MessageBufferTest.php:12
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\slip\laravel-webhooks\vendor\ratchet\rfc6455\tests\unit\Messaging\MessageBufferTest.php on line 12