Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/Xereah/public_html/pstruzik/vendor/api-platform/core/src/Serializer/Tests/YamlEncoderTest.php:19 Stack trace: #0 {main} thrown in /home/Xereah/public_html/pstruzik/vendor/api-platform/core/src/Serializer/Tests/YamlEncoderTest.php on line 19