// 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 IFrameElement.created()
/// Constructor instantiated by the DOM when a custom element has been created.
/// This can only be called by subclasses from their created constructor.
/// @description Checks that this constructor can be called only by subclasses

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

class MyIFrameElement extends IFrameElement {
  factory MyIFrameElement() {
    return new Element.tag('my-iframe');
  }

  MyIFrameElement.created() : super.created();

  String testit() => "In testit";
}

main() {
  var ife;
  Expect.throws(() {
    ife = new IFrameElement.created();
  });

  var tag = 'my-iframe';
  document.register(tag, MyIFrameElement, extendsTag: "iframe");

  ife = document.createElement('iframe', 'my-iframe');
  document.body.append(ife);
  Expect.isTrue(ife is MyIFrameElement);
  Expect.equals("In testit", ife.testit());
}