Fatal error: Uncaught Error: Class 'Drupal\Tests\views\Kernel\ViewsKernelTestBase' not found in /var/www/html/tmp/contrib/group/tests/src/Kernel/Views/GroupContentToEntityRelationshipTest.php:16 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/group/tests/src/Kernel/Views/GroupContentToEntityRelationshipTest.php on line 16