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Diffstat (limited to 'testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-offer.html')
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1 files changed, 229 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-offer.html b/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-offer.html new file mode 100644 index 0000000000..88f1de5ed8 --- /dev/null +++ b/testing/web-platform/tests/webrtc/RTCPeerConnection-setLocalDescription-offer.html @@ -0,0 +1,229 @@ +<!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: + // generateDataChannelOffer + // assert_session_desc_not_similar + // 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" + }; + */ + + /* + 4.3.2. setLocalDescription + 2. Let lastOffer be the result returned by the last call to createOffer. + 5. If description.sdp is null and description.type is offer, set description.sdp + to lastOffer. + + 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 "offer", set connection.pendingLocalDescription + to description and signaling state to have-local-offer. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + + const states = []; + pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState)); + + return generateAudioReceiveOnlyOffer(pc) + .then(offer => + pc.setLocalDescription(offer) + .then(() => { + assert_equals(pc.signalingState, 'have-local-offer'); + assert_session_desc_similar(pc.localDescription, offer); + assert_session_desc_similar(pc.pendingLocalDescription, offer); + assert_equals(pc.currentLocalDescription, null); + + assert_array_equals(states, ['have-local-offer']); + })); + }, 'setLocalDescription with valid offer should succeed'); + + /* + 4.3.2. setLocalDescription + 2. Let lastOffer be the result returned by the last call to createOffer. + 5. If description.sdp is null and description.type is offer, set description.sdp + to lastOffer. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + return generateAudioReceiveOnlyOffer(pc) + .then(offer => + pc.setLocalDescription({ type: 'offer' }) + .then(() => { + assert_equals(pc.signalingState, 'have-local-offer'); + assert_session_desc_similar(pc.localDescription, offer); + assert_session_desc_similar(pc.pendingLocalDescription, offer); + assert_equals(pc.currentLocalDescription, null); + })); + }, 'setLocalDescription with type offer and null sdp should use lastOffer generated from createOffer'); + + /* + 4.3.2. setLocalDescription + 2. Let lastOffer be the result returned by the last call to createOffer. + 6. If description.type is offer and description.sdp does not match lastOffer, + reject the promise with a newly created InvalidModificationError and abort + these steps. + */ + promise_test(t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + const pc2 = new RTCPeerConnection(); + + t.add_cleanup(() => pc2.close()); + + return generateDataChannelOffer(pc) + .then(offer => pc2.setLocalDescription(offer)) + .then(() => t.unreached_func("setLocalDescription should have rejected"), + (error) => assert_equals(error.name, 'InvalidModificationError')); + }, 'setLocalDescription() with offer not created by own createOffer() should reject with InvalidModificationError'); + + promise_test(t => { + // Create first offer with audio line, then second offer with + // both audio and video line. Since the second offer is the + // last offer, setLocalDescription would reject when setting + // with the first offer + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + return generateAudioReceiveOnlyOffer(pc) + .then(offer1 => + generateVideoReceiveOnlyOffer(pc) + .then(offer2 => { + assert_session_desc_not_similar(offer1, offer2); + return promise_rejects_dom(t, 'InvalidModificationError', + pc.setLocalDescription(offer1)); + })); + }, 'Set created offer other than last offer should reject with InvalidModificationError'); + + promise_test(t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + + const states = []; + pc.addEventListener('signalingstatechange', () => states.push(pc.signalingState)); + + return generateAudioReceiveOnlyOffer(pc) + .then(offer1 => + pc.setLocalDescription(offer1) + .then(() => + generateVideoReceiveOnlyOffer(pc) + .then(offer2 => + pc.setLocalDescription(offer2) + .then(() => { + assert_session_desc_not_similar(offer1, offer2); + assert_equals(pc.signalingState, 'have-local-offer'); + assert_session_desc_similar(pc.localDescription, offer2); + assert_session_desc_similar(pc.pendingLocalDescription, offer2); + assert_equals(pc.currentLocalDescription, null); + + assert_array_equals(states, ['have-local-offer']); + })))); + }, 'Creating and setting offer multiple times should succeed'); + + 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(); // [[LastOffer]] set + pc2.addTransceiver('video', { direction: 'recvonly' }); + const offer2 = await pc2.createOffer(); + await pc1.setRemoteDescription(offer2); + await pc1.createAnswer(); // [[LastAnswer]] set + await pc1.setRemoteDescription({type: "rollback"}); + await pc1.setLocalDescription(offer); + }, "Setting previously generated offer after a call to createAnswer 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 pc1.setLocalDescription(await pc1.createOffer()); + + const offer = await pc1.createOffer(); + await pc1.setLocalDescription(offer); + await pc2.setRemoteDescription(offer); + const answer = await pc2.createAnswer(); + await pc2.setLocalDescription(answer); + await pc1.setRemoteDescription(answer); + + assert_equals(pc1.getTransceivers().length, 1); + assert_equals(pc1.getTransceivers()[0].receiver.track.kind, "audio"); + assert_equals(pc2.getTransceivers().length, 1); + assert_equals(pc2.getTransceivers()[0].receiver.track.kind, "audio"); + }, "Negotiation works when there has been a repeated setLocalDescription(offer)"); + + promise_test(async t => { + const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close()); + + pc.addTransceiver('audio', { direction: 'recvonly' }); + const sldPromise = pc.setLocalDescription(await pc.createOffer()); + + assert_equals(pc.signalingState, "stable", "signalingState should not be set synchronously after a call to sLD"); + + assert_equals(pc.pendingLocalDescription, null, "pendingRemoteDescription should never be set due to sLD"); + assert_equals(pc.pendingRemoteDescription, null, "pendingLocalDescription should not be set synchronously after a call to sLD"); + assert_equals(pc.currentLocalDescription, null, "currentLocalDescription should not be set synchronously after a call to sLD"); + assert_equals(pc.currentRemoteDescription, null, "currentRemoteDescription should not be set synchronously after a call to sLD"); + + const statePromise = new Promise(resolve => { + pc.onsignalingstatechange = () => { + resolve(pc.signalingState); + } + }); + const raceValue = await Promise.race([statePromise, sldPromise]); + assert_equals(raceValue, "have-local-offer", "signalingstatechange event should fire before sLD resolves"); + assert_equals(pc.pendingRemoteDescription, null, "pendingRemoteDescription should never be set due to sLD"); + assert_not_equals(pc.pendingLocalDescription, null, "pendingLocalDescription should be updated before the signalingstatechange event"); + assert_equals(pc.pendingLocalDescription.type, "offer"); + assert_equals(pc.pendingLocalDescription.sdp, pc.localDescription.sdp); + assert_equals(pc.currentLocalDescription, null, "currentLocalDescription should never be updated due to sLD(offer)"); + assert_equals(pc.currentRemoteDescription, null, "currentRemoteDescription should never be updated due to sLD(offer)"); + + await sldPromise; + }, "setLocalDescription(offer) should update internal state with a queued task, in the right order"); + +</script> |