// 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 insertAllBefore(Iterable<Node> newNodes, Node refChild)
/// Inserts all of the nodes into this node directly before refChild.
/// MDN: If referenceElement is null, newElement is inserted at the end of the
/// list of child nodes.
/// @description Checks expected dom after insert

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

main() {
  IFrameElement iframe = new Element.html('<iframe>Content</iframe>');
  iframe.insertAllBefore([new HRElement(), new AnchorElement()], null);

  Expect.equals('<iframe>Content<hr><a></a></iframe>', iframe.outerHtml,
      'insert before null');
}