Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/palabrebel/www/kimai/tests/Invoice/Hydrator/InvoiceItemDefaultHydratorTest.php:18 Stack trace: #0 {main} thrown in /home/palabrebel/www/kimai/tests/Invoice/Hydrator/InvoiceItemDefaultHydratorTest.php on line 18