Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/clapsabo/test/vendor/symfony/form/Tests/Extension/Validator/ViolationMapper/ViolationMapperTest.php:29 Stack trace: #0 {main} thrown in /home/clapsabo/test/vendor/symfony/form/Tests/Extension/Validator/ViolationMapper/ViolationMapperTest.php on line 29