author Tarek Ziadé <>
Wed, 14 Aug 2019 20:32:31 +0000
changeset 488124 05b192f3ba82425d42ab63510b224a90334e5ca9
parent 469641 ba6f655fd68963530c866d0d4a48c3db3d307777
permissions -rw-r--r--
Bug 1556637 - Replace all mozDumpDebugInfo calls r=jya,jib Replaces mozDumpDebugInfo with mozRequestDebugInfo Differential Revision:

<!DOCTYPE html>
<meta http-equiv="content-type" content="text/html; charset=windows-1252">
  <title>MSE: QuotaExceededError when source buffer is full</title>
  <script 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" />
<pre id="test"><script class="testbody" type="text/javascript">

// We fill up the source buffer with audio data until the buffer is full.
// We ensure that QuotaExceededError is thrown once the buffer is full.
// We then seek to half the content. By that time, another appendBuffer must succeed
// as the auto-eviction would succeed (removing all data prior currentTime)

  ["", 524288],
  ["media.dormant-on-pause-timeout-ms", -1] // FIXME: bug 1319292

runWithMSE(async (ms, el) => {
  el.controls = true;
  await once(ms, "sourceopen");
  ok(true, "Receive a sourceopen event");
  const audiosb = ms.addSourceBuffer("audio/mp4");
  audiosb.mode = "sequence";
  await fetchAndLoad(audiosb, "bipbop/bipbop_audio", ["init"], ".mp4");
  const audioBuffer = await fetchWithXHR("bipbop/bipbop_audio1.m4s");

  await must_reject(async () => {
    // We are appending data repeatedly in sequence mode, there should be no gaps.
    while (true) {
      ok(audiosb.buffered.length <= 1, "there should be no gap in buffered ranges.");
      await once(audiosb, "updateend");
  "Fill up SourceBuffer by appending data until an exception is thrown.",

  is(audiosb.buffered.end(0), el.duration, "Duration is end of buffered range");
  const seekTime = audiosb.buffered.end(0) / 2;
  el.currentTime = seekTime;
  await once(el, "seeked");
  dump("dump: seeked to " + seekTime);
  is(el.currentTime, seekTime, "correctly seeked to " + seekTime);
  try {
    await once(audiosb, "update");
    ok(true, "appendBuffer succeeded");
  } catch (ex) {
    ok(false, "Shouldn't throw another time when data can be evicted");
    dump(JSON.stringify(await SpecialPowers.wrap(el).mozRequestDebugInfo()));