| <body> |
| <p>Test that a MediaStreamTrack can be transferred through a MessageChannel in the same context.</p> |
| <pre id="log"></pre> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function log(msg) { |
| document.getElementById("log").textContent += msg + "\n"; |
| } |
| |
| async function runTest() { |
| const stream = await navigator.mediaDevices.getUserMedia({ audio: true }); |
| const track = stream.getAudioTracks()[0]; |
| |
| const channel = new MessageChannel(); |
| let receivedTransfer = false; |
| |
| channel.port2.onmessage = (event) => { |
| if (event.data === "done") { |
| if (!receivedTransfer) |
| log("FAIL: never received the MediaStreamTrack message"); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| return; |
| } |
| |
| receivedTransfer = true; |
| const received = event.data; |
| if (received instanceof MediaStreamTrack) |
| log("PASS: received a MediaStreamTrack"); |
| else |
| log("FAIL: expected a MediaStreamTrack, got " + received); |
| |
| if (received.kind === "audio") |
| log("PASS: track kind is audio"); |
| else |
| log("FAIL: expected kind 'audio', got '" + received.kind + "'"); |
| |
| received.stop(); |
| }; |
| |
| channel.port1.postMessage(track, [track]); |
| channel.port1.postMessage("done"); |
| } |
| |
| runTest().catch(e => { |
| log("FAIL: " + e); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }); |
| </script> |
| </body> |
