| /* |
| * 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 Node insertBefore(Node newChild, Node refChild) |
| * Inserts node into this node directly before refChild. |
| * from MDN: var insertedElement = parentElement.insertBefore(newElement, referenceElement); |
| * - insertedElement The node being inserted, that is newElement |
| * - parentElement The parent of the newly inserted node. |
| * - newElement The node to insert. |
| * - referenceElement The node before which newElement is inserted. |
| * http://www.w3.org/: Document can have Element (maximum of one), |
| * ProcessingInstruction, Comment, DocumentType |
| * @description Checks expected dom after insert |
| */ |
| import "dart:html"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var x = new Comment("cool"); |
| document.insertBefore(x, document.firstChild); |
| Expect.equals(document.firstChild, x, 'insert before existing child'); |
| |
| Expect.throws(() { |
| document.insertBefore(new Comment("cool"), new HRElement()); |
| }, null, 'insert before not existing child'); |
| } |