Fatal error: Uncaught Error: Class "Drupal\Tests\search\Functional\Rest\SearchPageResourceTestBase" not found in /home/www/drupal8/test/core/modules/search/tests/src/Functional/Rest/SearchPageXmlAnonTest.php:11 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/search/tests/src/Functional/Rest/SearchPageXmlAnonTest.php on line 11