Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\laragon\www\ado365n\vendor\webklex\php-imap\tests\AddressTest.php:18 Stack trace: #0 {main} thrown in C:\laragon\www\ado365n\vendor\webklex\php-imap\tests\AddressTest.php on line 18