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