Fatal error: Uncaught Error: Class "Drupal\Tests\editor\Functional\Rest\EditorResourceTestBase" not found in /home/qcsvlel/www/core/modules/editor/tests/src/Functional/Rest/EditorXmlBasicAuthTest.php:13 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/editor/tests/src/Functional/Rest/EditorXmlBasicAuthTest.php on line 13