Fatal error: Uncaught Error: Class "Illuminate\Tests\Integration\Mail\MailableTestCase" not found in /home/neondra/www/vendor/laravel/framework/tests/Integration/Mail/MailableWithoutSecuredEncodingTest.php:13 Stack trace: #0 {main} thrown in /home/neondra/www/vendor/laravel/framework/tests/Integration/Mail/MailableWithoutSecuredEncodingTest.php on line 13