Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/Xereah/public_html/pstruzik/vendor/api-platform/core/src/OpenApi/Tests/Serializer/OpenApiNormalizerTest.php:57 Stack trace: #0 {main} thrown in /home/Xereah/public_html/pstruzik/vendor/api-platform/core/src/OpenApi/Tests/Serializer/OpenApiNormalizerTest.php on line 57