LibTest/html/IFrameElement/hasChildNodes_A01_t01.dart

// 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.

/// @assertion bool hasChildNodes()
/// Returns true if this node has any children.
/// @description Checks expected values.

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

main() {
  IFrameElement x = new IFrameElement();
  document.body?.append(x);

  Expect.isFalse(x.hasChildNodes(), 'no children');

  x.append(new Comment("foo"));
  x.append(new Comment("bar"));
  Expect.isTrue(x.hasChildNodes(), 'two children');

  x.nodes.removeAt(0);
  Expect.isTrue(x.hasChildNodes(), 'one child');

  x.nodes.removeAt(0);
  Expect.isFalse(x.hasChildNodes(), 'all removed');
}