DatabaseStorageTest.php

<?php

namespace Drupal\KernelTests\Core\Config\Storage;

use Drupal\Core\Config\DatabaseStorage;
use Drupal\Core\Database\Database;

/**
 * Tests DatabaseStorage operations.
 *
 * @group config
 */
class DatabaseStorageTest extends ConfigStorageTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->storage = new DatabaseStorage($this->container
            ->get('database'), 'config');
        $this->invalidStorage = new DatabaseStorage($this->container
            ->get('database'), 'invalid');
        // ::listAll() verifications require other configuration data to exist.
        $this->storage
            ->write('system.performance', []);
    }
    protected function read($name) {
        $data = Database::getConnection()->select('config', 'c')
            ->fields('c', [
            'data',
        ])
            ->condition('name', $name)
            ->execute()
            ->fetchField();
        return unserialize($data);
    }
    protected function insert($name, $data) {
        Database::getConnection()->insert('config')
            ->fields([
            'name' => $name,
            'data' => $data,
        ])
            ->execute();
    }
    protected function update($name, $data) {
        Database::getConnection()->update('config')
            ->fields([
            'data' => $data,
        ])
            ->condition('name', $name)
            ->execute();
    }
    protected function delete($name) {
        Database::getConnection()->delete('config')
            ->condition('name', $name)
            ->execute();
    }

}