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3274be9ff2
Backed out changeset 1b6bef229ce4 (bug 1860492) Backed out changeset 22a3235fe2dc (bug 1860492) Backed out changeset a5b2e4d12e44 (bug 1860492) Backed out changeset cbcb811ca382 (bug 1860492) Backed out changeset d6a999866f19 (bug 1860492) Backed out changeset 40cee82fa090 (bug 1860492) Backed out changeset eeec1917ab49 (bug 1860492) Backed out changeset cf1230802d5c (bug 1860492) Backed out changeset b34aacf0e966 (bug 1860492) Backed out changeset 45d137c795f1 (bug 1860492) Backed out changeset fb667be5932d (bug 1860492) Backed out changeset a6d22d73c8a5 (bug 1860492) Backed out changeset c8b6c53698f5 (bug 1860492)
106 lines
3.6 KiB
HTML
106 lines
3.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test loading of the same resource in multiple elements</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<script type="text/javascript" src="manifest.js"></script>
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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SimpleTest.requestCompleteLog();
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var manager = new MediaTestManager;
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function checkDuration(actual, expected, name) {
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ok(Math.abs(actual - expected) < 0.1,
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`${name} duration: ${actual} expected: ${expected}`);
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}
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function cloneLoaded(event) {
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var e = event.target;
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ok(true, `${e.token} loaded OK`);
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checkDuration(e.duration, e._expectedDuration, e.token);
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removeNodeAndSource(e);
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manager.finished(e.token);
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}
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function tryClone(e) {
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var clone = e.cloneNode(false);
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clone.token = `${e.token}(cloned)`;
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manager.started(clone.token);
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manager.finished(e.token);
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// Log events for debugging.
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var events = ["suspend", "play", "canplay", "canplaythrough", "loadstart", "loadedmetadata",
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"loadeddata", "playing", "ended", "error", "stalled", "emptied", "abort",
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"waiting", "pause"];
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function logEvent(evt) {
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var event = evt.target;
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info(`${event.token} got ${evt.type}`);
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}
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events.forEach(function(event) {
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clone.addEventListener(event, logEvent);
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});
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checkDuration(e.duration, e._expectedDuration, e.token);
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clone._expectedDuration = e._expectedDuration;
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clone.addEventListener("loadeddata", cloneLoaded, {once: true});
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clone.addEventListener("loadstart", function(evt) {
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info(`${evt.target.token} starts loading.`);
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// Since there is only one H264 decoder instance, we have to delete the
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// decoder of the original element for the cloned element to load. However,
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// we can't delete the decoder too early otherwise cloning decoder will
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// fail to kick in. We wait for 'loadstart' event of the cloned element to
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// know when the decoder is already cloned and we can delete the decoder of
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// the original element.
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removeNodeAndSource(e);
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}, {once: true});
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}
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// This test checks that loading the same URI twice in different elements at the same time
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// uses the same resource without doing another network fetch. One of the gCloneTests
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// uses dynamic_resource.sjs to return one resource on the first fetch and a different resource
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// on the second fetch. These resources have different lengths, so if the cloned element
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// does a network fetch it will get a resource with the wrong length and we get a test
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// failure.
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async function initTest(test, token) {
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var e = document.createElement("video");
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e.preload = "auto";
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e.src = test.name;
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e._expectedDuration = test.duration;
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ok(true, `Trying to load ${test.name}, duration=${test.duration}`);
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e.token = token;
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manager.started(token);
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// Since 320x240.ogv is less than 32KB, we need to wait for the
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// 'suspend' event to ensure the partial block is flushed to the cache
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// otherwise the cloned resource will create a new channel when it
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// has no data to read at position 0. The new channel will download
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// a different file than the original resource and fail the duration
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// test.
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let p1 = once(e, "loadeddata");
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let p2 = once(e, "suspend");
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await p1;
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await p2;
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tryClone(e);
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}
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SimpleTest.waitForExplicitFinish();
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SpecialPowers.pushPrefEnv(
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{"set": [
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["logging.MediaDecoder", "Debug"],
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["logging.HTMLMediaElement", "Debug"],
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["logging.MediaCache", "Debug"],
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]},
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manager.runTests.bind(manager, gCloneTests, initTest));
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</script>
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</pre>
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</body>
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</html>
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