update-callback-timeout.html (1004B)
1 <!DOCTYPE html> 2 <html> 3 <title>View transitions: Transition has implementation-defined timeout.</title> 4 <link rel="author" title="Tim Nguyen" href="https://github.com/nt1m"> 5 <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> 6 <meta name="timeout" content="long"> 7 <script src="/resources/testharness.js"></script> 8 <script src="/resources/testharnessreport.js"></script> 9 <script> 10 promise_test(async t => { 11 assert_implements(document.startViewTransition, "Missing document.startViewTransition"); 12 const transition = document.startViewTransition(() => { 13 return new Promise(() => {}); 14 }); 15 transition.updateCallbackDone.then(() => { 16 assert_unreached(); 17 }); 18 transition.finished.then(() => { 19 assert_unreached(); 20 }); 21 await promise_rejects_dom(t, "TimeoutError", transition.ready); 22 }, "View transition should have an implementation-defined timeout on the update callback"); 23 </script> 24 </body> 25 </html>