// 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 Node append(Node newChild)
/// Adds a node to the end of the child nodes list of this node.
/// @description Checks expected lastChild after append

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

main() {
  IFrameElement x = new IFrameElement();
  document.body.append(x);
  var y = new Comment("cool");
  x.append(y);
  Expect.equals(y, x.lastChild);
}