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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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testing/web-platform/tests/media-source/mediasource-trackdefaultlist.html Normal file
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<!DOCTYPE html>
<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function()
{
var originalTrackDefaults = [
// Same everything, but different byteStreamTrackID, should be allowed by the constructor.
new TrackDefault("audio", "en-US", "label", ["main"], ""),
new TrackDefault("audio", "en-US", "label", ["main"], "1"),
new TrackDefault("audio", "en-US", "label", ["main"], "2"),
new TrackDefault("audio", "en-US", "label", [""], "3"),
// Same everything, but different type, should be allowed by the constructor.
new TrackDefault("video", "en-US", "label", ["main"], ""),
new TrackDefault("video", "en-US", "label", ["main"], "1"),
new TrackDefault("video", "en-US", "label", ["main"], "2"),
new TrackDefault("video", "en-US", "label", [""], "3")
];
// Get a new array containing the same objects as |originalTrackDefaults|.
var trackDefaults = originalTrackDefaults.slice();
var trackDefaultList = new TrackDefaultList(trackDefaults);
assert_array_equals(trackDefaultList, originalTrackDefaults, "construction and read-back succeeded");
assert_equals(trackDefaultList[trackDefaultList.length], undefined, "out of range indexed property getter result is undefined");
assert_equals(trackDefaultList[trackDefaultList.length + 1], undefined, "out of range indexed property getter result is undefined");
// Introduce same-type, same-empty-string-byteStreamTrackId conflict in trackDefaults[0 vs 4].
trackDefaults[4] = new TrackDefault("audio", "en-US", "label", ["main"], "");
assert_equals(trackDefaults[0].type, trackDefaults[4].type, "same-type conflict setup");
assert_equals(trackDefaults[0].byteStreamTrackID, trackDefaults[4].byteStreamTrackID, "same-byteStreamTrackID conflict setup");
assert_throws("InvalidAccessError",
function() { new TrackDefaultList(trackDefaults); },
"TrackDefaultList construction should throw exception due to same type and byteStreamTrackID across at least 2 items in trackDefaults");
// Introduce same-type, same-non-empty-string-byteStreamTrackId conflict in trackDefaults[4 vs 5].
trackDefaults[4] = new TrackDefault("video", "en-US", "label", ["main"], "1");
assert_equals(trackDefaults[4].type, trackDefaults[5].type, "same-type conflict setup");
assert_equals(trackDefaults[4].byteStreamTrackID, trackDefaults[5].byteStreamTrackID, "same-byteStreamTrackID conflict setup");
assert_throws("InvalidAccessError",
function() { new TrackDefaultList(trackDefaults); },
"TrackDefaultList construction should throw exception due to same type and byteStreamTrackID across at least 2 items in trackDefaults");
// Confirm the constructed TrackDefaultList makes a shallow copy of the supplied TrackDefault sequence.
assert_array_equals(trackDefaultList, originalTrackDefaults, "read-back of original trackDefaultList unchanged");
}, "Test track default list construction, length, and indexed property getter");
test(function()
{
var trackDefaultList = new TrackDefaultList();
assert_array_equals(trackDefaultList, [], "empty list constructable without supplying optional trackDefaults parameter");
trackDefaultList = new TrackDefaultList([]);
assert_array_equals(trackDefaultList, [], "empty list constructable by supplying empty sequence as optional trackDefaults parameter");
}, "Test empty track default list construction with and without optional trackDefaults parameter");
</script>