Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwagen/horser.agenciavm8.com.br/vendor/sebastian/diff/tests/DiffTest.php:20 Stack trace: #0 {main} thrown in /home/wwagen/horser.agenciavm8.com.br/vendor/sebastian/diff/tests/DiffTest.php on line 20