| <!DOCTYPE html> |
| <html> |
| <meta charset=utf-8 /> |
| <title>Event Timing: orphan keydown.</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script src=/resources/testdriver.js></script> |
| <script src=/resources/testdriver-actions.js></script> |
| <script src=/resources/testdriver-vendor.js></script> |
| <script src=resources/event-timing-test-utils.js></script> |
| |
| <body> |
| <button id='target'>Click me</button> |
| |
| <script> |
| let observedEntries = []; |
| const map = new Map(); |
| const events = ['keydown']; |
| |
| promise_test(async t => { |
| assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.'); |
| |
| const callback = (entryList) => {observedEntries = observedEntries.concat(entryList.getEntries().filter(filterAndAddToMap(events, map))); }; |
| const readyToResolve = () => { return observedEntries.length >= 1; }; |
| const observerPromise = createPerformanceObserverPromise(['event'], callback, readyToResolve); |
| |
| await interactAndObserve('orphan-keydown', document.getElementById('target'), observerPromise); |
| |
| assert_equals(observedEntries.length, 1, "Keydown without a keyup should be fired properly."); |
| assert_greater_than(map.get('keydown'), 0, "Should have a non-trivial interactionId.") |
| }, "Event Timing: Orphan keydown should be measured as an interaction."); |
| </script> |
| </body> |
| </html> |
