| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCPeerConnection addTrack does not deadlock</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="RTCPeerConnection-helper.js"></script> |
| <script> |
| 'use strict'; |
| |
| // This test sets up two peer connections using a sequence of operations |
| // that triggered a deadlock in Chrome. See https://crbug.com/736725. |
| // If a deadlock is introduced again, this test times out. |
| promise_test(async t => { |
| const pc1 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc1.close()); |
| const stream = await getNoiseStream( |
| {audio: false, video: true}); |
| t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); |
| const videoTrack = stream.getVideoTracks()[0]; |
| pc1.addTrack(videoTrack, stream); |
| const offer = await pc1.createOffer(); |
| await pc1.setLocalDescription(offer); |
| const pc2 = new RTCPeerConnection(); |
| t.add_cleanup(() => pc2.close()); |
| const srdPromise = pc2.setRemoteDescription(offer); |
| pc2.addTrack(videoTrack, stream); |
| // The deadlock encountered in https://crbug.com/736725 occured here. |
| await srdPromise; |
| await pc2.createAnswer(); |
| }, 'RTCPeerConnection addTrack does not deadlock.'); |
| </script> |
