| <!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> |
