Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/karendei/public_html/test.karenderia.ir/vendor/qoraiche/laravel-mail-editor/tests/Unit/ClassNameTest.php:8 Stack trace: #0 {main} thrown in /home/karendei/public_html/test.karenderia.ir/vendor/qoraiche/laravel-mail-editor/tests/Unit/ClassNameTest.php on line 8