// 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 Node parentNode
/// The parent node of this node.
/// from DOM-lelvel-3:  if a node has just been created and not yet added to the tree,
/// or if it has been removed from the tree, this is null. 
/// @description Checks expected parentNode values

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

main() {
  IFrameElement x = new Element.html('<iframe class="y">Content Text</iframe>');

  var body = document.body;
  body.append(x);
  Expect.equals(body, x.parentNode);

  body.children.remove(x);
  Expect.equals(null, x.parentNode);
}