Fatal error: Uncaught Error: Class "Drupal\Tests\comment\Functional\Hal\CommentHalJsonTestBase" not found in /home/www/drupal8/test/core/modules/comment/tests/src/Functional/Hal/CommentHalJsonAnonTest.php:10 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/comment/tests/src/Functional/Hal/CommentHalJsonAnonTest.php on line 10