| <!DOCTYPE html> |
| <html> |
| <title>View transitions: exception thrown during transition</title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> |
| <link rel="author" href="mailto:khushalsagar@chromium.org"> |
| |
| <script src="/dom/events/scrolling/scroll_support.js"></script> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <style> |
| div { |
| width: 100px; |
| height: 100px; |
| background: blue; |
| contain: paint; |
| view-transition-name: shared; |
| } |
| |
| html::view-transition, |
| html::view-transition-group(shared), |
| html::view-transition-image-pair(shared), |
| html::view-transition-old(shared), |
| html::view-transition-new(shared) { |
| background: blue; |
| } |
| </style> |
| |
| <div></div> |
| |
| <script> |
| promise_test(async t => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| await waitForCompositorReady(); |
| const vt = document.startViewTransition(() => { |
| throw "error"; |
| }); |
| let update_callback_resolution; |
| let ready_resolution; |
| let finished_resolution; |
| |
| await vt.updateCallbackDone.then( |
| () => { update_callback_resolution = "fulfilled" }, |
| () => { update_callback_resolution = "rejected" }); |
| await vt.ready.then( |
| () => { ready_resolution = "fulfilled" }, |
| () => { ready_resolution = "rejected" }); |
| await vt.finished.then( |
| () => { finished_resolution = "fulfilled" }, |
| () => { finished_resolution = "rejected" }); |
| |
| assert_equals(update_callback_resolution, "rejected"); |
| assert_equals(ready_resolution, "rejected"); |
| assert_equals(finished_resolution, "rejected"); |
| }, "An exception thrown during a transition shouldn't crash."); |
| |
| </script> |
