Fatal error: Uncaught Error: Class "Drupal\Tests\rest\Functional\EntityResource\EntityResourceTestBase" not found in /home/qcsvlel/www/core/modules/media/tests/src/Functional/Rest/MediaResourceTestBase.php:22 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/media/tests/src/Functional/Rest/MediaResourceTestBase.php on line 22