Fatal error: Uncaught Error: Undefined constant "DRUPAL_ROOT" in /home/qcsvlel/www/core/tests/Drupal/Tests/Core/Extension/Requirement/RequirementSeverityTest.php:7 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/tests/Drupal/Tests/Core/Extension/Requirement/RequirementSeverityTest.php on line 7