diff options
Diffstat (limited to 'testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-answer.html')
| -rw-r--r-- | testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-answer.html | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-answer.html b/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-answer.html new file mode 100644 index 0000000000..32e2332635 --- /dev/null +++ b/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-answer.html @@ -0,0 +1,230 @@ +<!doctype html> +<meta charset=utf-8> +<title>RTCPeerConnection.prototype.setLocalDescription</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: + // generateAnswer + // assert_session_desc_similar + + /* + 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" + }; + */ + + /* + 4.3.1.6. Set the RTCSessionSessionDescription + 2.2.2. If description is set as a local description, then run one of the following + steps: + + - If description is of type "answer", then this completes an offer answer + negotiation. + + Set connection's currentLocalDescription to description and + currentRemoteDescription to the value of pendingRemoteDescription. + + Set both pendingRemoteDescription and pendingLocalDescription to null. + + Finally set connection's signaling state to stable. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + + const states = []; + pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState)); + + return generateVideoReceiveOnlyOffer(pc) + .then(offer => + pc.setRemoteDescription(offer) + .then(() => pc.createAnswer()) + .then(answer => + pc.setLocalDescription(answer) + .then(() => { + assert_equals(pc.signalingState, 'stable'); + assert_session_desc_similar(pc.localDescription, answer); + assert_session_desc_similar(pc.remoteDescription, offer); + + assert_session_desc_similar(pc.currentLocalDescription, answer); + assert_session_desc_similar(pc.currentRemoteDescription, offer); + + assert_equals(pc.pendingLocalDescription, null); + assert_equals(pc.pendingRemoteDescription, null); + + assert_array_equals(states, ['have-remote-offer', 'stable']); + }))); + }, 'setLocalDescription() with valid answer should succeed'); + + /* + 4.3.2. setLocalDescription + 3. Let lastAnswer be the result returned by the last call to createAnswer. + 4. If description.sdp is null and description.type is answer, set description.sdp + to lastAnswer. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + + t.add_cleanup(() => pc.close()); + + return generateVideoReceiveOnlyOffer(pc) + .then(offer => + pc.setRemoteDescription(offer) + .then(() => pc.createAnswer()) + .then(answer => + pc.setLocalDescription({ type: 'answer' }) + .then(() => { + assert_equals(pc.signalingState, 'stable'); + assert_session_desc_similar(pc.localDescription, answer); + assert_session_desc_similar(pc.remoteDescription, offer); + + assert_session_desc_similar(pc.currentLocalDescription, answer); + assert_session_desc_similar(pc.currentRemoteDescription, offer); + + assert_equals(pc.pendingLocalDescription, null); + assert_equals(pc.pendingRemoteDescription, null); + }))); + }, 'setLocalDescription() with type answer and null sdp should use lastAnswer generated from createAnswer'); + + /* + 4.3.2. setLocalDescription + 3. Let lastAnswer be the result returned by the last call to createAnswer. + 7. If description.type is answer and description.sdp does not match lastAnswer, + reject the promise with a newly created InvalidModificationError and abort these + steps. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + + t.add_cleanup(() => pc.close()); + + return generateVideoReceiveOnlyOffer(pc) + .then(offer => + pc.setRemoteDescription(offer) + .then(() => generateAnswer(offer)) + .then(answer => pc.setLocalDescription(answer)) + .then(() => t.unreached_func("setLocalDescription should have rejected"), + (error) => assert_equals(error.name, 'InvalidModificationError'))); + }, 'setLocalDescription() with answer not created by own createAnswer() should reject with InvalidModificationError'); + + /* + 4.3.1.6. Set the RTCSessionSessionDescription + 2.3. If the description's type is invalid for the current signaling state of + connection, then reject p with a newly created InvalidStateError and abort + these steps. + + [jsep] + 5.5. If the type is "pranswer" or "answer", the PeerConnection + state MUST be either "have-remote-offer" or "have-local-pranswer". + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + + t.add_cleanup(() => pc.close()); + + return pc.createOffer() + .then(offer => + promise_rejects_dom(t, 'InvalidModificationError', + pc.setLocalDescription({ type: 'answer', sdp: offer.sdp }))); + }, 'Calling setLocalDescription(answer) from stable state should reject with InvalidModificationError'); + + promise_test(t => { + const pc = new RTCPeerConnection(); + + t.add_cleanup(() => pc.close()); + + return pc.createOffer() + .then(offer => + pc.setLocalDescription(offer) + .then(() => generateAnswer(offer))) + .then(answer => + promise_rejects_dom(t, 'InvalidModificationError', + pc.setLocalDescription(answer))); + }, 'Calling setLocalDescription(answer) from have-local-offer state should reject with InvalidModificationError'); + + promise_test(async t => { + const pc1 = new RTCPeerConnection(); + t.add_cleanup(() => pc1.close()); + const pc2 = new RTCPeerConnection(); + t.add_cleanup(() => pc2.close()); + + pc1.addTransceiver('audio', { direction: 'recvonly' }); + const offer = await pc1.createOffer(); + await pc2.setRemoteDescription(offer); + const answer = await pc2.createAnswer(); // [[LastAnswer]] slot set + await pc2.setRemoteDescription({type: "rollback"}); + pc2.addTransceiver('video', { direction: 'recvonly' }); + await pc2.createOffer(); // [[LastOffer]] slot set + await pc2.setRemoteDescription(offer); + await pc2.setLocalDescription(answer); // Should check against [[LastAnswer]], not [[LastOffer]] + }, "Setting previously generated answer after a call to createOffer should work"); + + promise_test(async t => { + const pc1 = new RTCPeerConnection(); + t.add_cleanup(() => pc1.close()); + const pc2 = new RTCPeerConnection(); + t.add_cleanup(() => pc2.close()); + + pc1.addTransceiver('audio', { direction: 'recvonly' }); + await pc2.setRemoteDescription(await pc1.createOffer()); + const answer = await pc2.createAnswer(); + const sldPromise = pc2.setLocalDescription(answer); + + assert_equals(pc2.signalingState, "have-remote-offer", "signalingState should not be set synchronously after a call to sLD"); + + assert_equals(pc2.pendingLocalDescription, null, "pendingLocalDescription should never be set due to sLD(answer)"); + assert_not_equals(pc2.pendingRemoteDescription, null, "pendingRemoteDescription should not be set synchronously after a call to sLD"); + assert_equals(pc2.pendingRemoteDescription.type, "offer"); + assert_equals(pc2.remoteDescription.sdp, pc2.pendingRemoteDescription.sdp); + assert_equals(pc2.currentLocalDescription, null, "currentLocalDescription should not be set synchronously after a call to sLD"); + assert_equals(pc2.currentRemoteDescription, null, "currentRemoteDescription should not be set synchronously after a call to sLD"); + + const stablePromise = new Promise(resolve => { + pc2.onsignalingstatechange = () => { + resolve(pc2.signalingState); + } + }); + const raceValue = await Promise.race([stablePromise, sldPromise]); + assert_equals(raceValue, "stable", "signalingstatechange event should fire before sLD resolves"); + assert_equals(pc2.pendingLocalDescription, null, "pendingLocalDescription should never be set due to sLD(answer)"); + assert_equals(pc2.pendingRemoteDescription, null, "pendingRemoteDescription should be updated before the signalingstatechange event"); + assert_not_equals(pc2.currentLocalDescription, null, "currentLocalDescription should be updated before the signalingstatechange event"); + assert_equals(pc2.currentLocalDescription.type, "answer"); + assert_equals(pc2.currentLocalDescription.sdp, pc2.localDescription.sdp); + assert_not_equals(pc2.currentRemoteDescription, null, "currentRemoteDescription should be updated before the signalingstatechange event"); + assert_equals(pc2.currentRemoteDescription.type, "offer"); + assert_equals(pc2.currentRemoteDescription.sdp, pc2.remoteDescription.sdp); + + await sldPromise; + }, "setLocalDescription(answer) should update internal state with a queued task, in the right order"); + +</script> |