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<?php

namespace Drupal\Tests\mysql\Kernel\mysql;

use Drupal\Core\Database\Database;
use Drupal\KernelTests\Core\Database\DriverSpecificDatabaseTestBase;

/**
 * Tests the sequences API.
 *
 * @group Database
 */
class NextIdTest extends DriverSpecificDatabaseTestBase {

  /**
   * The modules to enable.
   *
   * @var array
   */
  protected static $modules = ['database_test', 'system'];

  /**
   * {@inheritdoc}
   */
  protected function setUp(): void {
    parent::setUp();
    $this->installSchema('system', 'sequences');
  }

  /**
   * Tests that sequences table clear up works when a connection is closed.
   *
   * @see \Drupal\mysql\Driver\Database\mysql\Connection::__destruct()
   */
  public function testDbNextIdClosedConnection() {
    // Create an additional connection to test closing the connection.
    $connection_info = Database::getConnectionInfo();
    Database::addConnectionInfo('default', 'next_id', $connection_info['default']);

    // Get a few IDs to ensure there the clean up needs to run and there is more
    // than one row.
    Database::getConnection('next_id')->nextId();
    Database::getConnection('next_id')->nextId();

    // At this point the sequences table should contain unnecessary rows.
    $count = $this->connection->select('sequences')->countQuery()->execute()->fetchField();
    $this->assertGreaterThan(1, $count);

    // Close the connection.
    Database::closeConnection('next_id');

    // Test that \Drupal\mysql\Driver\Database\mysql\Connection::__destruct()
    // successfully trims the sequences table if the connection is closed.
    $count = $this->connection->select('sequences')->countQuery()->execute()->fetchField();
    $this->assertEquals(1, $count);
  }

}