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