| <!DOCTYPE html> |
| <title>This tests that DocumentFragment implements the ParentNode interface</title> |
| <body> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| var documentFragment = new DocumentFragment(); |
| |
| assert_equals(documentFragment.children.length, 0); |
| assert_equals(documentFragment.childElementCount, 0); |
| assert_equals(documentFragment.firstElementChild, null); |
| assert_equals(documentFragment.lastElementChild, null); |
| |
| documentFragment.appendChild(new Text('a')); |
| assert_equals(documentFragment.children.length, 0); |
| assert_equals(documentFragment.childElementCount, 0); |
| assert_equals(documentFragment.firstElementChild, null); |
| assert_equals(documentFragment.lastElementChild, null); |
| |
| var b = documentFragment.appendChild(document.createElement('b')); |
| assert_equals(documentFragment.children.length, 1); |
| assert_equals(documentFragment.childElementCount, 1); |
| assert_equals(documentFragment.children[0], b); |
| assert_equals(documentFragment.firstElementChild, b); |
| assert_equals(documentFragment.lastElementChild, b); |
| |
| documentFragment.appendChild(new Text('c')); |
| assert_equals(documentFragment.children.length, 1); |
| assert_equals(documentFragment.childElementCount, 1); |
| assert_equals(documentFragment.children[0], b); |
| assert_equals(documentFragment.firstElementChild, b); |
| assert_equals(documentFragment.lastElementChild, b); |
| |
| var d = documentFragment.appendChild(document.createElement(d)); |
| assert_equals(documentFragment.children.length, 2); |
| assert_equals(documentFragment.childElementCount, 2); |
| assert_equals(documentFragment.children[0], b); |
| assert_equals(documentFragment.children[1], d); |
| assert_equals(documentFragment.firstElementChild, b); |
| assert_equals(documentFragment.lastElementChild, d); |
| |
| documentFragment.appendChild(new Text('e')); |
| assert_equals(documentFragment.children.length, 2); |
| assert_equals(documentFragment.childElementCount, 2); |
| assert_equals(documentFragment.children[0], b); |
| assert_equals(documentFragment.children[1], d); |
| assert_equals(documentFragment.firstElementChild, b); |
| assert_equals(documentFragment.lastElementChild, d); |
| done(); |
| </script> |
