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Test Info:

<title>Looping events order</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
<script type="text/javascript">
* This test is used to ensure the events order when media is looping back to
* the start position. We should see events in following order.
* 'seeking' -> 'timeupdate' -> 'seeked'.
var tests = [
{ name:"small-shot.ogg", type:"audio/ogg" },
{ name:"seek-short.webm", type:"video/webm" }
async function testTimeupdateChanged({name, type}) {
info(`- start testPlay for name=${name} -`);
const element = document.createElement(getMajorMimeType(type));
element.src = name;
element.loop = true;
await once(element, "canplay");
ok(await => true, () => false), `start playing ${name}`);
let gotTimeUpdated = false;
await once(element, "seeking");
element.addEventListener("timeupdate", function() {
gotTimeUpdated = true;
}, {once: true});
await once(element, "seeked");
ok(gotTimeUpdated, "Got timeupdate between seeking and seeked.");
(async function startTest() {
for (let test of tests) {
await testTimeupdateChanged(test);