Expanded class hierarchy of ContentAccessTest in Search API Solr 4.x
- class \Drupal\Tests\search_api_solr\Kernel\Processor\ContentAccessTest extends \Drupal\Tests\search_api\Kernel\Processor\ContentAccessTest uses SolrBackendTrait
- class \Drupal\Tests\search_api_solr_legacy\Kernel\Processor\ContentAccessTest