gecko-dev/dom/media/mediasource/test/test_PlayEventsAutoPlaying2...

59 строки
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<!DOCTYPE HTML>
<html>
<head>
<title>MSE: basic functionality</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="mediasource.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
// This test checks that readyState is properly set and the appropriate events are being fired accordingly:
// 1. Ensure that play/playing aren't fired before any media data been added.
// 2. Load more than 10s of data and ensure that canplay, play and playing events are fired.
runWithMSE(async (ms, el) => {
el.controls = true;
el.autoplay = true;
const eventCounts = { play: 0, playing: 0 };
await once(ms, "sourceopen");
logEvents(el);
ok(true, "Receive a sourceopen event");
const forbiddenEvents = e => {
ok(el.readyState >= el.HAVE_FUTURE_DATA, "Must not have received event too early");
is(eventCounts[e.type], 0, "event should have only be fired once");
eventCounts[e.type]++;
};
el.addEventListener("play", forbiddenEvents);
el.addEventListener("playing", forbiddenEvents);
const videosb = ms.addSourceBuffer("video/mp4");
el.addEventListener("error", e => {
ok(false, `should not fire ${e.type} event`);
SimpleTest.finish();
});
is(el.readyState, el.HAVE_NOTHING, "readyState is HAVE_NOTHING");
let p = once(el, "loadedmetadata");
await fetchAndLoad(videosb, "bipbop/bipbop_video", ["init"], ".mp4");
await p;
ok(true, "got loadedmetadata event");
// We shift the timestamps slightly to create a small gaps at the start.
// one that should normally be ignored.
videosb.timestampOffset = 0.1;
p = Promise.all(["loadeddata", "canplay", "play", "playing"].map(e => once(el, e)));
await fetchAndLoad(videosb, "bipbop/bipbop_video", range(1, 14), ".m4s");
await p;
ok(true, "got all required event");
SimpleTest.finish();
});
</script>
</pre>
</body>
</html>