| <!doctype html> |
| <html> |
| <head> |
| <title>Adding a track to a MediaStream</title> |
| <link rel="author" title="Dominique Hazael-Massieux" href="mailto:dom@w3.org"/> |
| <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#widl-MediaStreamTrackList-add-void-MediaStreamTrack-track"> |
| <link rel="help" href="http://dev.w3.org/2011/webrtc/editor/getusermedia.html#event-mediastream-addtrack"> |
| </head> |
| <body> |
| <p class="instructions">When prompted, accept to share your audio stream, then your video stream.</p> |
| <h1 class="instructions">Description</h1> |
| <p class="instructions">This test checks that adding a track to a MediaStream works as expected.</p> |
| |
| <div id='log'></div> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| var t = async_test("Tests that adding a track to a MediaStream works as expected"); |
| t.step(function () { |
| var audio, video; |
| |
| navigator.mediaDevices.getUserMedia({audio: true}).then(gotAudio); |
| function gotAudio(stream) { |
| audio = stream; |
| navigator.mediaDevices.getUserMedia({video: true}).then(gotVideo); |
| } |
| |
| function gotVideo(stream) { |
| video = stream; |
| t.step(function () { |
| assert_equals(video.getAudioTracks().length, 0, "video mediastream starts with no audio track"); |
| video.addTrack(audio.getAudioTracks()[0]); |
| assert_equals(video.getAudioTracks().length, 1, "video mediastream has now one audio track"); |
| video.addTrack(audio.getAudioTracks()[0]); |
| assert_equals(video.getAudioTracks().length, 1, "video mediastream still has one audio track"); // If track is already in stream's track set, then abort these steps. |
| |
| }); |
| audio.onaddtrack = t.step_func(function () { |
| assert_unreached("onaddtrack is not fired when the script directly modified the track of a mediastream"); |
| }); |
| t.step(function () { |
| assert_equals(audio.getVideoTracks().length, 0, "audio mediastream starts with no video track"); |
| audio.addTrack(video.getVideoTracks()[0]); |
| assert_equals(audio.getVideoTracks().length, 1, "audio mediastream now has one video track"); |
| }); |
| t.step(function () { |
| t.done(); |
| }); |
| } |
| }); |
| </script> |
| </body> |
| </html> |
