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