Fatal error: Uncaught Error: Class "Drupal\Tests\views\Functional\ViewTestBase" not found in /home/qcsvlel/www/core/modules/comment/tests/src/Functional/Views/DefaultViewRecentCommentsTest.php:18 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/comment/tests/src/Functional/Views/DefaultViewRecentCommentsTest.php on line 18