EntityTestHelper.php

<?php

declare (strict_types=1);
namespace Drupal\entity_test;


/**
 * Class for the entity API providing several entity types for testing.
 */
class EntityTestHelper {
    
    /**
     * Returns a list of test entity types.
     *
     * The returned entity types are one for each available entity storage type:
     * - The plain entity_test type supports neither revisions nor multilingual
     *   properties.
     * - The entity_test_mul type supports multilingual properties.
     * - The entity_test_rev type supports revisions.
     * - The entity_test_mulrev type supports both revisions and multilingual
     *   properties.
     *
     * @param int $filter
     *   Either EntityTestTypesFilter::Revisable to only return revisable entity types or
     *   EntityTestTypesFilter::Multilingual to only return multilingual ones. Defaults
     *   to NULL, which returns all.
     *
     * @return array
     *   List with entity_types.
     */
    public static function getEntityTypes($filter = NULL) : array {
        $types = [];
        if ($filter === NULL || $filter === EntityTestTypesFilter::Routing) {
            $types[] = 'entity_test';
        }
        if ($filter != EntityTestTypesFilter::Revisable) {
            $types[] = 'entity_test_mul';
            $types[] = 'entity_test_mul_langcode_key';
            $types[] = 'entity_test_mul_changed';
        }
        if ($filter != EntityTestTypesFilter::Multilingual) {
            $types[] = 'entity_test_rev';
        }
        if ($filter === EntityTestTypesFilter::Routing) {
            $types[] = 'entity_test_base_field_display';
            $types[] = 'entity_test_string_id';
            $types[] = 'entity_test_uuid_id';
            $types[] = 'entity_test_no_id';
            $types[] = 'entity_test_mul_with_bundle';
        }
        $types[] = 'entity_test_mulrev';
        $types[] = 'entity_test_mulrev_changed';
        return array_combine($types, $types);
    }

}