Fatal error: Uncaught Error: Class "Drupal\Tests\comment\Kernel\Views\CommentViewsKernelTestBase" not found in /home/www/drupal8/test/core/modules/comment/tests/src/Kernel/Views/CommentLinksTest.php:18 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/comment/tests/src/Kernel/Views/CommentLinksTest.php on line 18