123 lines
4.2 KiB
HTML
123 lines
4.2 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>RTCPeerConnection.prototype.setRemoteDescription - answer</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="RTCPeerConnection-helper.js"></script>
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<script>
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'use strict';
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// Test is based on the following editor draft:
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// https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html
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// The following helper functions are called from RTCPeerConnection-helper.js:
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// generateAnswer()
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// assert_session_desc_similar()
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/*
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4.3.2. Interface Definition
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[Constructor(optional RTCConfiguration configuration)]
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interface RTCPeerConnection : EventTarget {
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Promise<void> setRemoteDescription(
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RTCSessionDescriptionInit description);
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readonly attribute RTCSessionDescription? remoteDescription;
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readonly attribute RTCSessionDescription? currentRemoteDescription;
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readonly attribute RTCSessionDescription? pendingRemoteDescription;
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...
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};
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4.6.2. RTCSessionDescription Class
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dictionary RTCSessionDescriptionInit {
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required RTCSdpType type;
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DOMString sdp = "";
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};
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4.6.1. RTCSdpType
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enum RTCSdpType {
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"offer",
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"pranswer",
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"answer",
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"rollback"
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};
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*/
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/*
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4.3.1.6. Set the RTCSessionSessionDescription
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2.2.3. Otherwise, if description is set as a remote description, then run one of
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the following steps:
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- If description is of type "answer", then this completes an offer answer
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negotiation.
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Set connection's currentRemoteDescription to description and
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currentLocalDescription to the value of pendingLocalDescription.
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Set both pendingRemoteDescription and pendingLocalDescription to null.
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Finally setconnection's signaling state to stable.
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*/
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promise_test(t => {
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const pc = new RTCPeerConnection();
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t.add_cleanup(() => pc.close());
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const states = [];
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pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState));
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return generateVideoReceiveOnlyOffer(pc)
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.then(offer =>
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pc.setLocalDescription(offer)
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.then(() => generateAnswer(offer))
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.then(answer =>
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pc.setRemoteDescription(answer)
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.then(() => {
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assert_equals(pc.signalingState, 'stable');
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assert_session_desc_similar(pc.localDescription, offer);
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assert_session_desc_similar(pc.remoteDescription, answer);
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assert_session_desc_similar(pc.currentLocalDescription, offer);
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assert_session_desc_similar(pc.currentRemoteDescription, answer);
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assert_equals(pc.pendingLocalDescription, null);
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assert_equals(pc.pendingRemoteDescription, null);
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assert_array_equals(states, ['have-local-offer', 'stable']);
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})));
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}, 'setRemoteDescription() with valid state and answer should succeed');
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/*
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4.3.1.6. Set the RTCSessionSessionDescription
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2.1.3. If the description's type is invalid for the current signaling state of
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connection, then reject p with a newly created InvalidStateError and abort
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these steps.
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[JSEP]
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5.6. If the type is "answer", the PeerConnection state MUST be either
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"have-local-offer" or "have-remote-pranswer".
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*/
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promise_test(t => {
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const pc = new RTCPeerConnection();
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t.add_cleanup(() => pc.close());
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return pc.createOffer()
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.then(offer =>
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promise_rejects_dom(t, 'InvalidStateError',
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pc.setRemoteDescription({ type: 'answer', sdp: offer.sdp })));
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}, 'Calling setRemoteDescription(answer) from stable state should reject with InvalidStateError');
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promise_test(t => {
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const pc = new RTCPeerConnection();
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t.add_cleanup(() => pc.close());
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return pc.createOffer()
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.then(offer =>
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pc.setRemoteDescription(offer)
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.then(() => generateAnswer(offer)))
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.then(answer =>
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promise_rejects_dom(t, 'InvalidStateError',
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pc.setRemoteDescription(answer)));
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}, 'Calling setRemoteDescription(answer) from have-remote-offer state should reject with InvalidStateError');
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</script>
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