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|---|
| (Empty) | |
| 1 <!doctype html> |
| 2 <title>MediaStreamTrackEvent constructor</title> |
| 3 <link rel="help" href="https://w3c.github.io/mediacapture-main/#mediastreamtrack
event"> |
| 4 <script src="/resources/testharness.js"></script> |
| 5 <script src="/resources/testharnessreport.js"></script> |
| 6 <script> |
| 7 test(function() { |
| 8 assert_equals(MediaStreamTrackEvent.length, 2); |
| 9 assert_throws(new TypeError, function() { |
| 10 new MediaStreamTrackEvent("type"); |
| 11 }); |
| 12 assert_throws(new TypeError, function() { |
| 13 new MediaStreamTrackEvent("type", null); |
| 14 }); |
| 15 assert_throws(new TypeError, function() { |
| 16 new MediaStreamTrackEvent("type", undefined); |
| 17 }); |
| 18 }, "The eventInitDict argument is required"); |
| 19 |
| 20 test(function() { |
| 21 assert_throws(new TypeError, function() { |
| 22 new MediaStreamTrackEvent("type", {}); |
| 23 }); |
| 24 assert_throws(new TypeError, function() { |
| 25 new MediaStreamTrackEvent("type", { track: null }); |
| 26 }); |
| 27 assert_throws(new TypeError, function() { |
| 28 new MediaStreamTrackEvent("type", { track: undefined }); |
| 29 }); |
| 30 }, "The eventInitDict's track member is required."); |
| 31 |
| 32 // a MediaStreamTrack instance is needed to test, any instance will do. |
| 33 promise_test(function() { |
| 34 return navigator.mediaDevices.getUserMedia({ video: true }) |
| 35 .then(function(stream) { |
| 36 var track = stream.getTracks()[0]; |
| 37 assert_true(track instanceof MediaStreamTrack); |
| 38 var event = new MediaStreamTrackEvent("type", { track: track }); |
| 39 assert_equals(event.type, "type"); |
| 40 assert_equals(event.track, track); |
| 41 }); |
| 42 }, "The MediaStreamTrackEvent instance's track attribute is set."); |
| 43 </script> |
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Chromium Code Reviews
Issue 2341333002:
Import wpt@1f2080f9ffa00ad27eb764b83fbc10960a95d6aa (Closed)
