// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion final WindowBase window
/// @description Checks that this property is present.

import "dart:html";
import "../../../UtilsHtml/expect.dart";

main() {
  WindowBase window = document.window;
  Expect.isTrue(window is WindowBase);
}