| <!DOCTYPE html> |
| <html> |
| <title>View transitions: Transition has implementation-defined timeout.</title> |
| <link rel="author" title="Tim Nguyen" href="https://github.com/nt1m"> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| promise_test(async t => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| const transition = document.startViewTransition(() => { |
| return new Promise(() => {}); |
| }); |
| transition.updateCallbackDone.then(() => { |
| assert_unreached(); |
| }); |
| transition.finished.then(() => { |
| assert_unreached(); |
| }); |
| await promise_rejects_dom(t, "TimeoutError", transition.ready); |
| }, "View transition should have an implementation-defined timeout on the update callback"); |
| </script> |
| </body> |
| </html> |
