orphan-keydown.html (1407B)
1 <!DOCTYPE html> 2 <html> 3 <meta charset=utf-8 /> 4 <title>Event Timing: orphan keydown.</title> 5 <script src=/resources/testharness.js></script> 6 <script src=/resources/testharnessreport.js></script> 7 <script src=/resources/testdriver.js></script> 8 <script src=/resources/testdriver-actions.js></script> 9 <script src=/resources/testdriver-vendor.js></script> 10 <script src=resources/event-timing-test-utils.js></script> 11 12 <body> 13 <button id='target'>Click me</button> 14 15 <script> 16 let observedEntries = []; 17 const map = new Map(); 18 const events = ['keydown']; 19 20 promise_test(async t => { 21 assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.'); 22 23 const callback = (entryList) => {observedEntries = observedEntries.concat(entryList.getEntries().filter(filterAndAddToMap(events, map))); }; 24 const readyToResolve = () => { return observedEntries.length >= 1; }; 25 const observerPromise = createPerformanceObserverPromise(['event'], callback, readyToResolve); 26 27 await interactAndObserve('orphan-keydown', document.getElementById('target'), observerPromise); 28 29 assert_equals(observedEntries.length, 1, "Keydown without a keyup should be fired properly."); 30 assert_greater_than(map.get('keydown'), 0, "Should have a non-trivial interactionId.") 31 }, "Event Timing: Orphan keydown should be measured as an interaction."); 32 </script> 33 </body> 34 </html>