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Test Info:
<!DOCTYPE HTML>
<html>
<head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="manifest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<video id="v" src="seek.webm" preload="metadata">
<track src="long.vtt" kind="subtitles" id="track1">
<track src="long.vtt" kind="subtitles" id="track2">
</video>
<script type="text/javascript">
/**
* This test is used to ensure that we can load two track elements with large
* amount of cues at same time. In this test, both tracks are disable by default,
* we have to enable them in order to start loading.
*/
var trackElement = document.getElementById("track1");
var trackElementTwo = document.getElementById("track2");
async function runTest() {
enableBothTracks();
await waitUntilBothTracksLoaded();
checkTrackReadyStateShouldBeLoaded();
checkCuesAmount();
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
onload = runTest;
/**
* The following are test helper functions.
*/
function enableBothTracks() {
// All tracks are `disable` on default. As we won't start loading for disabled
// tracks, we have to change their mode in order to start loading.
trackElement.track.mode = "hidden";
trackElementTwo.track.mode = "hidden";
}
async function waitUntilBothTracksLoaded() {
info(`wait until both tracks finish loading`);
await Promise.all([once(trackElement, "load"), once(trackElementTwo, "load")]);
}
function checkTrackReadyStateShouldBeLoaded() {
is(trackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
is(trackElementTwo.readyState, 2, "Track::ReadyState should be set to LOADED.");
}
function checkCuesAmount() {
is(trackElement.track.cues.length, 2000, "Cue list length should be 2000.");
is(trackElementTwo.track.cues.length, 2000, "Cue list length should be 2000.");
}
</script>
</body>
</html>