Fatal error: Uncaught Error: Class "Codeception\TestCase\Test" not found in /var/www/html/prod/vendor/mtangoo/yii2-fullcalendar/src/tests/unit/FullcalendarTest.php:16 Stack trace: #0 {main} thrown in /var/www/html/prod/vendor/mtangoo/yii2-fullcalendar/src/tests/unit/FullcalendarTest.php on line 16