Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/www/swittelecom.com/test/laravel/vendor/symfony/http-kernel/Tests/DataCollector/DumpDataCollectorTest.php:23 Stack trace: #0 {main} thrown in /home/www/swittelecom.com/test/laravel/vendor/symfony/http-kernel/Tests/DataCollector/DumpDataCollectorTest.php on line 23