зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
3.9 KiB
HTML
117 строки
3.9 KiB
HTML
<!doctype html>
|
|
<html>
|
|
<!--
|
|
https://bugzilla.mozilla.org/show_bug.cgi?id=77992
|
|
-->
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>Test for Event.timeStamp (Bug 77992)</title>
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
|
|
</head>
|
|
<body>
|
|
<a target="_blank"
|
|
href="https://bugzilla.mozilla.org/show_bug.cgi?id=77992">Mozilla Bug 77992</a>
|
|
<p id="display"></p>
|
|
<pre id="test">
|
|
<script type="text/js-worker" id="worker-src">
|
|
// Simply returns the event timestamp
|
|
onmessage = function(evt) {
|
|
postMessage(evt.timeStamp + performance.timeOrigin);
|
|
}
|
|
</script>
|
|
<script type="text/js-worker" id="shared-worker-src">
|
|
// Simply returns the event timestamp
|
|
onconnect = function(evt) {
|
|
var port = evt.ports[0];
|
|
port.onmessage = function(messageEvt) {
|
|
port.postMessage(messageEvt.timeStamp + performance.timeOrigin);
|
|
};
|
|
};
|
|
</script>
|
|
<script type="application/javascript">
|
|
"use strict";
|
|
|
|
SimpleTest.waitForExplicitFinish();
|
|
SimpleTest.requestFlakyTimeout("untriaged");
|
|
|
|
// This file performs tests that normalize the timeOrigin within a worker
|
|
// and compare it to the page. When this occurs, time can appear to go backwards.
|
|
// This is a known (and accepted) regression of privacy.reduceTimerPrecision so
|
|
// we need to turn it off.
|
|
SpecialPowers.pushPrefEnv({ "set": [
|
|
["privacy.reduceTimerPrecision", false]
|
|
]}, testRegularEvents);
|
|
|
|
// Event.timeStamp should be relative to the time origin which is:
|
|
//
|
|
// Non-worker context: navigation start
|
|
// Dedicated worker: navigation start of the document that created the worker
|
|
// Shared worker: creation time of the shared worker
|
|
//
|
|
// See: https://w3c.github.io/web-performance/specs/HighResolutionTime2/Overview.html#sec-time-origin
|
|
|
|
function testRegularEvents() {
|
|
var timeBeforeEvent = performance.now();
|
|
document.getElementById('test').addEventListener("click", function(evt) {
|
|
var timeAfterEvent = performance.now();
|
|
ok(evt.timeStamp >= timeBeforeEvent &&
|
|
evt.timeStamp <= timeAfterEvent,
|
|
"Event timestamp (" + evt.timeStamp + ") is in expected range: [" +
|
|
timeBeforeEvent + ", " + timeAfterEvent + "]");
|
|
testWorkerEvents();
|
|
});
|
|
document.getElementById('test').click();
|
|
}
|
|
|
|
function testWorkerEvents() {
|
|
var blob = new Blob([ document.getElementById("worker-src").textContent ],
|
|
{ type: "text/javascript" });
|
|
var worker = new Worker(URL.createObjectURL(blob));
|
|
worker.onmessage = function(evt) {
|
|
var timeAfterEvent = performance.now() + performance.timeOrigin;
|
|
ok(evt.data >= timeBeforeEvent &&
|
|
evt.data <= timeAfterEvent,
|
|
"Event timestamp in dedicated worker (" + evt.data +
|
|
") is in expected range: [" +
|
|
timeBeforeEvent + ", " + timeAfterEvent + "]");
|
|
worker.terminate();
|
|
testSharedWorkerEvents();
|
|
};
|
|
var timeBeforeEvent = performance.now() + performance.timeOrigin;
|
|
worker.postMessage("");
|
|
}
|
|
|
|
function testSharedWorkerEvents() {
|
|
var blob =
|
|
new Blob([ document.getElementById("shared-worker-src").textContent ],
|
|
{ type: "text/javascript" });
|
|
// Delay creation of worker slightly so it is easier to distinguish
|
|
// shared worker creation time from this document's navigation start
|
|
setTimeout(function() {
|
|
var timeBeforeEvent = performance.now() + performance.timeOrigin;
|
|
var worker = new SharedWorker(URL.createObjectURL(blob));
|
|
worker.port.onmessage = function(evt) {
|
|
var timeAfterEvent = performance.now() + performance.timeOrigin;
|
|
ok(evt.data >= timeBeforeEvent &&
|
|
evt.data <= timeAfterEvent,
|
|
"Event timestamp in shared worker (" + evt.data +
|
|
") is in expected range: [" +
|
|
timeBeforeEvent + ", " + timeAfterEvent + "]");
|
|
worker.port.close();
|
|
finishTests();
|
|
};
|
|
worker.port.start();
|
|
worker.port.postMessage("");
|
|
}, 500);
|
|
}
|
|
|
|
var finishTests = function() {
|
|
SimpleTest.finish();
|
|
};
|
|
|
|
</script>
|
|
</pre>
|
|
</body>
|
|
</html>
|