| <!doctype html> |
| <meta charset=utf-8> |
| <title>RTCPeerConnection.prototype.setRemoteDescription</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="RTCPeerConnection-helper.js"></script> |
| <script> |
| 'use strict'; |
| |
| // Test is based on the following editor draft: |
| // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html |
| |
| // The following helper functions are called from RTCPeerConnection-helper.js: |
| // generateOffer() |
| // generateAnswer() |
| // assert_session_desc_not_equals() |
| // assert_session_desc_equals() |
| // test_state_change_event() |
| |
| /* |
| 4.3.2. Interface Definition |
| [Constructor(optional RTCConfiguration configuration)] |
| interface RTCPeerConnection : EventTarget { |
| Promise<void> setRemoteDescription( |
| RTCSessionDescriptionInit description); |
| |
| readonly attribute RTCSessionDescription? remoteDescription; |
| readonly attribute RTCSessionDescription? currentRemoteDescription; |
| readonly attribute RTCSessionDescription? pendingRemoteDescription; |
| ... |
| }; |
| |
| 4.6.2. RTCSessionDescription Class |
| dictionary RTCSessionDescriptionInit { |
| required RTCSdpType type; |
| DOMString sdp = ""; |
| }; |
| |
| 4.6.1. RTCSdpType |
| enum RTCSdpType { |
| "offer", |
| "pranswer", |
| "answer", |
| "rollback" |
| }; |
| */ |
| |
| /* |
| 4.6.1. enum RTCSdpType |
| */ |
| promise_test(t => { |
| const pc = new RTCPeerConnection(); |
| |
| // SDP is validated after WebIDL validation |
| return promise_rejects(t, new TypeError(), |
| pc.setRemoteDescription({ |
| type: 'bogus', |
| sdp: 'bogus' |
| })); |
| }, 'setRemoteDescription with invalid type and invalid SDP should reject with TypeError') |
| |
| promise_test(t => { |
| const pc = new RTCPeerConnection(); |
| |
| // SDP is validated after validating type |
| return promise_rejects(t, 'InvalidStateError', |
| pc.setRemoteDescription({ |
| type: 'answer', |
| sdp: 'invalid' |
| })); |
| }, 'setRemoteDescription() with invalid SDP and stable state should reject with InvalidStateError') |
| |
| /* Operations after returning to stable state */ |
| |
| promise_test(t => { |
| const pc = new RTCPeerConnection(); |
| const pc2 = new RTCPeerConnection(); |
| |
| test_state_change_event(t, pc, |
| ['have-remote-offer', 'stable', 'have-remote-offer']); |
| |
| return generateOffer({ audio: true }) |
| .then(offer1 => |
| pc.setRemoteDescription(offer1) |
| .then(() => pc.createAnswer()) |
| .then(answer => pc.setLocalDescription(answer)) |
| .then(() => generateOffer({ data: true })) |
| .then(offer2 => |
| pc.setRemoteDescription(offer2) |
| .then(() => { |
| assert_equals(pc.signalingState, 'have-remote-offer'); |
| assert_session_desc_not_equals(offer1, offer2); |
| assert_session_desc_equals(pc.remoteDescription, offer2); |
| assert_session_desc_equals(pc.currentRemoteDescription, offer1); |
| assert_session_desc_equals(pc.pendingRemoteDescription, offer2); |
| }))); |
| }, 'Calling setRemoteDescription() again after one round of remote-offer/local-answer should succeed'); |
| |
| promise_test(t => { |
| const pc = new RTCPeerConnection(); |
| |
| test_state_change_event(t, pc, |
| ['have-local-offer', 'stable', 'have-remote-offer']); |
| |
| return pc.createOffer({ offerToReceiveAudio: true }) |
| .then(offer => |
| pc.setLocalDescription(offer) |
| .then(() => generateAnswer(offer))) |
| .then(answer => |
| pc.setRemoteDescription(answer) |
| .then(() => generateOffer({ data: true })) |
| .then(offer => |
| pc.setRemoteDescription(offer) |
| .then(() => { |
| assert_equals(pc.signalingState, 'have-remote-offer'); |
| assert_session_desc_equals(pc.remoteDescription, offer); |
| assert_session_desc_equals(pc.currentRemoteDescription, answer); |
| assert_session_desc_equals(pc.pendingRemoteDescription, offer); |
| }))); |
| }, 'Switching role from offerer to answerer after going back to stable state should succeed'); |
| |
| /* |
| TODO |
| 4.3.2. setRemoteDescription |
| - If an a=identity attribute is present in the session description, the browser |
| validates the identity assertion. |
| */ |
| |
| </script> |
