EnvironmentCleanerFactory.php

<?php

namespace Drupal\simpletest;

use Drupal\Core\DependencyInjection\Container;
use Drupal\Core\Test\TestDatabase;
use Drupal\Core\Database\Database;

/**
 * Test environment cleaner factory.
 *
 * We use a factory pattern here so that we can inject the test results database
 * which is not a service (and should not be).
 */
class EnvironmentCleanerFactory {
    
    /**
     * The container.
     *
     * @var \Drupal\Core\DependencyInjection\Container
     */
    protected $container;
    
    /**
     * Construct an environment cleaner factory.
     *
     * @param \Drupal\Core\DependencyInjection\Container $container
     *   The container.
     */
    public function __construct(Container $container) {
        $this->container = $container;
    }
    
    /**
     * Factory method to create the environment cleaner service.
     *
     * @return \Drupal\simpletest\EnvironmentCleanerService
     *   The environment cleaner service.
     */
    public function createCleaner() {
        $cleaner = new EnvironmentCleanerService($this->container
            ->get('app.root'), Database::getConnection(), TestDatabase::getConnection(), $this->container
            ->get('messenger'), $this->container
            ->get('string_translation'), $this->container
            ->get('config.factory'), $this->container
            ->get('cache.default'), $this->container
            ->get('file_system'));
        return $cleaner;
    }

}