1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
<!DOCTYPE html>
<html>
<meta charset=utf-8>
<title>Event Timing: make sure event-timing entries are retrievable by existing perf APIs.</title>
<meta name="timeout" content="long">
<button id='button'>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('mousedown', '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>
|
