| <!DOCTYPE html> |
| <script src="../../../resources/js-test.js"></script> |
| <script> |
| description('MutationRecord should be exposed on window but not constructable'); |
| |
| shouldBeNonNull('window.MutationRecord'); |
| shouldBe('typeof MutationRecord', '"function"'); |
| shouldThrow('new MutationRecord'); |
| |
| var div = document.createElement('div'); |
| var observer = new MutationObserver(function(){}); |
| observer.observe(div, {attributes: true}); |
| div.id = 'foo'; |
| var record = observer.takeRecords()[0]; |
| shouldBeTrue('record instanceof MutationRecord'); |
| </script> |
