| <!DOCTYPE html> |
| <script src="../../../resources/js-test.js"></script> |
| <script> |
| |
| description('This tests the NonDocumentTypeChildNode interface previousElementSibling property on a Text node.'); |
| |
| var element = document.createElement('div'); |
| var a = element.appendChild(new Text('a')); |
| shouldBeNull('a.previousElementSibling'); |
| var b = element.insertBefore(document.createElement('b'), a); |
| shouldBe('a.previousElementSibling', 'b'); |
| var c = element.insertBefore(new Comment('c'), a); |
| shouldBe('a.previousElementSibling', 'b'); |
| |
| </script> |
