| <!DOCTYPE html> |
| <body> |
| <script src="../../../resources/js-test.js"></script> |
| <script> |
| |
| description('This tests that Document implements the ParentNode interface.'); |
| |
| var doc = document.implementation.createDocument('', null, null); |
| |
| shouldBe('doc.children.length', '0'); |
| shouldBe('doc.childElementCount', '0'); |
| shouldBeNull('doc.firstElementChild'); |
| shouldBeNull('doc.lastElementChild'); |
| |
| doc.appendChild(new Comment('a')); |
| shouldBe('doc.children.length', '0'); |
| shouldBe('doc.childElementCount', '0'); |
| shouldBeNull('doc.firstElementChild'); |
| shouldBeNull('doc.lastElementChild'); |
| |
| var b = doc.appendChild(doc.createElement('b')); |
| shouldBe('doc.children.length', '1'); |
| shouldBe('doc.childElementCount', '1'); |
| shouldBe('doc.children[0]', 'b'); |
| shouldBe('doc.firstElementChild', 'b'); |
| shouldBe('doc.lastElementChild', 'b'); |
| |
| doc.appendChild(new Comment('c')); |
| shouldBe('doc.children.length', '1'); |
| shouldBe('doc.childElementCount', '1'); |
| shouldBe('doc.children[0]', 'b'); |
| shouldBe('doc.firstElementChild', 'b'); |
| shouldBe('doc.lastElementChild', 'b'); |
| |
| </script> |
