| <!DOCTYPE html> |
| <html> |
| <meta charset=utf-8> |
| <title>Event Timing: make sure event-timing entries are retrievable by existing perf APIs.</title> |
| <button id='button' onclick='1'>Generate a 'click' event</button> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script src=/resources/testdriver.js></script> |
| <script src=/resources/testdriver-vendor.js></script> |
| |
| <script src=resources/event-timing-support.js></script> |
| <img src=resources/slow-image.py> |
| |
| <script> |
| function validateEntries() { |
| const entriesByName = performance.getEntriesByName('click', 'event'); |
| const entriesByType = performance.getEntriesByType('event'); |
| const allEntries = performance.getEntries(); |
| assert_equals(entriesByName.length, 1, 'event-timing entry should be retrievable by getEntriesByName'); |
| const e = entriesByName[0]; |
| assert_true(entriesByType.includes(e), 'event-timing entry should be retrievable by getEntries'); |
| assert_true(allEntries.includes(e), 'event-timing entry should be retrievable by getEntriesByType'); |
| } |
| |
| /* Timeline: |
| Begin Busy Loop |
| Click 1 arrives |
| End Busy Loop |
| (Dispatch and Process Click 1 - buffered) |
| Onload Event Fires |
| Validate entries |
| */ |
| async_test(function(t) { |
| clickAndBlockMain('button'); |
| on_event(window, 'load', e => { |
| validateEntries(); |
| t.done(); |
| }); |
| }, "Event Timing: make sure event-timing entries are retrievable by existing perf APIs."); |
| |
| </script> |
| </html> |
