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e3df66c4e8
Backed out changeset 9b8435c1c982 (bug 1860492) Backed out changeset 08603e5ea8a0 (bug 1860492) Backed out changeset 93086bc64d37 (bug 1860492) Backed out changeset f8cbb9933469 (bug 1860492) Backed out changeset f5e2a92235f1 (bug 1860492) Backed out changeset 0038d6d54690 (bug 1860492) Backed out changeset 24a1fb93d4a8 (bug 1860492) Backed out changeset c2c11ee3f79f (bug 1860492) Backed out changeset 9983c1ddee85 (bug 1860492) Backed out changeset b9286e049dea (bug 1860492) Backed out changeset d1d98783c88d (bug 1860492) Backed out changeset 22dd17861e80 (bug 1860492) Backed out changeset 7d823668fba7 (bug 1860492) Backed out changeset 024863677345 (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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