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160 lines
5.9 KiB
HTML
160 lines
5.9 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>RTCPeerConnection.prototype.setLocalDescription</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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// generateOffer
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// assert_session_desc_not_equals
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// assert_session_desc_equals
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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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4.3.2. setLocalDescription
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2. Let lastOffer be the result returned by the last call to createOffer.
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5. If description.sdp is null and description.type is offer, set description.sdp
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to lastOffer.
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4.3.1.6. Set the RTCSessionSessionDescription
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2.2.2. If description is set as a local description, then run one of the following
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steps:
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- If description is of type "offer", set connection.pendingLocalDescription
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to description and signaling state to have-local-offer.
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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 pc.createOffer({ offerToReceiveAudio: true })
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.then(offer =>
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pc.setLocalDescription(offer)
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.then(() => {
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assert_equals(pc.signalingState, 'have-local-offer');
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assert_session_desc_equals(pc.localDescription, offer);
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assert_session_desc_equals(pc.pendingLocalDescription, offer);
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assert_equals(pc.currentLocalDescription, null);
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assert_array_equals(states, ['have-local-offer']);
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}));
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}, 'setLocalDescription with valid offer should succeed');
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/*
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4.3.2. setLocalDescription
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2. Let lastOffer be the result returned by the last call to createOffer.
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5. If description.sdp is null and description.type is offer, set description.sdp
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to lastOffer.
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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({ offerToReceiveAudio: true })
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.then(offer =>
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pc.setLocalDescription({ type: 'offer' })
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.then(() => {
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assert_equals(pc.signalingState, 'have-local-offer');
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assert_session_desc_equals(pc.localDescription, offer);
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assert_session_desc_equals(pc.pendingLocalDescription, offer);
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assert_equals(pc.currentLocalDescription, null);
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}));
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}, 'setLocalDescription with type offer and null sdp should use lastOffer generated from createOffer');
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/*
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4.3.2. setLocalDescription
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2. Let lastOffer be the result returned by the last call to createOffer.
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6. If description.type is offer and description.sdp does not match lastOffer,
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reject the promise with a newly created InvalidModificationError and abort
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these steps.
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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 pc2 = new RTCPeerConnection();
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t.add_cleanup(() => pc2.close());
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return generateOffer({ pc, data: true })
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.then(offer =>
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promise_rejects(t, 'InvalidModificationError',
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pc2.setLocalDescription(offer)));
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}, 'setLocalDescription() with offer not created by own createOffer() should reject with InvalidModificationError');
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promise_test(t => {
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// Create first offer with audio line, then second offer with
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// both audio and video line. Since the second offer is the
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// last offer, setLocalDescription would reject when setting
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// with the first offer
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const pc = new RTCPeerConnection();
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t.add_cleanup(() => pc.close());
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return pc.createOffer({ offerToReceiveAudio: true })
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.then(offer1 =>
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pc.createOffer({ offerToReceiveVideo: true })
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.then(offer2 => {
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assert_session_desc_not_equals(offer1, offer2);
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return promise_rejects(t, 'InvalidModificationError',
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pc.setLocalDescription(offer1));
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}));
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}, 'Set created offer other than last offer should reject with InvalidModificationError');
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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 pc.createOffer({ offerToReceiveAudio: true })
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.then(offer1 =>
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pc.setLocalDescription(offer1)
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.then(() =>
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pc.createOffer({ offerToReceiveVideo: true })
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.then(offer2 =>
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pc.setLocalDescription(offer2)
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.then(offer2 => {
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assert_session_desc_not_equals(offer1, offer2);
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assert_equals(pc.signalingState, 'have-local-offer');
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assert_session_desc_equals(pc.localDescription, offer2);
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assert_session_desc_equals(pc.pendingLocalDescription, offer2);
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assert_equals(pc.currentLocalDescription, null);
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assert_array_equals(states, ['have-local-offer']);
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}))));
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}, 'Creating and setting offer multiple times should succeed');
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</script>
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