Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-10-04 02:29:12 +01:00
Code Issues Projects Releases Packages Wiki Activity

Update web-platform-tests to revision d7afcb8708eac08a614d161d5622a48172daf7e3

Browse source
This commit is contained in:
WPT Sync Bot 2019-05-15 10:40:54 -04:00 • committed by Josh Matthews
parent 6f8bb4dd40
commit edff458e23
791 changed files with 17647 additions and 10322 deletions
Download patch file Download diff file Expand all files Collapse all files

84
tests/wpt/web-platform-tests/event-timing/onloadthenobserve.html Normal file
View file

@ -0,0 +1,84 @@
<!DOCTYPE html>
<html>
<meta charset=utf-8 />
<title>Event Timing: long-latency events after onload and before observer
registration are lost
</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-test-utils.js></script>
<script>
let callbackTime;
let observerStart;
let processingStartMin;
function verifyBufferAndObserverEntries(observedEntries) {
// Verify buffer entries
const bufferedEntries = performance.getEntriesByName('mousedown', 'event');
const bufferedEntriesBeforeObserver = bufferedEntries.filter(e => e.startTime <
observerStart);
assert_equals(bufferedEntries.length, 0,
"Long latency events after onload should not be buffered."
);
// Verify observer entries
assert_equals(observedEntries.length, 1, "Long latency task after observer start should be observed.");
const entry = observedEntries[0];
verifyClickEvent(entry);
assert_greater_than(entry.processingStart, processingStartMin,
"The entry's processing start should be later than processingStartMin.");
assert_greater_than(callbackTime, entry.processingStart,
"The callback time should be later than the entry's processing start.");
assert_greater_than(entry.startTime, observerStart,
"The entry's start time should be later than observer start.");
assert_greater_than(callbackTime, entry.startTime,
"The callback time should be later than entry's start time.");
}
function startObserver(t) {
new PerformanceObserver(t.step_func_done((entryList, obs) => {
callbackTime = performance.now();
const observedEntries = entryList.getEntries().filter(
entry => entry.name === 'mousedown');
verifyBufferAndObserverEntries(observedEntries);
})).observe({ entryTypes: ['event'] });
observerStart = performance.now();
}
/* Timeline:
Onload Event fires
Begin Busy Loop
Click 1 arrives
End Busy Loop
(Dispatch and Process Click 1 (not buffered, not observed))
Observer start
Begin Busy Loop
Click 2 arrives
End Busy Loop
(Dispatch and Process Click 2 (not buffered, observed))
*/
async_test(function(t) {
// Use a dummy observer to know when the first click has been dispatched.
const observerPromise = new Promise((resolve, reject) => {
new PerformanceObserver((entryList, observer) => {
resolve();
observer.disconnect();
}).observe({ entryTypes: ['event'] });
});
on_event(window, 'load', () => {
const clickPromise = clickAndBlockMain('button');
Promise.all([observerPromise, clickPromise]).then(() => {
startObserver(t);
clickAndBlockMain('button');
processingStartMin = performance.now();
});
});
},"Event Timing: onload, click, observer, click.");
</script>
</html>