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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.setRemoteDescription - offer</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:
// 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"
};
*/
/*
4.3.1.6. Set the RTCSessionSessionDescription
2.2.3. Otherwise, if description is set as a remote description, then run one of
the following steps:
- If description is of type "offer", set connection.pendingRemoteDescription
attribute to description and signaling state to have-remote-offer.
*/
promise_test(t => {
const pc1 = new RTCPeerConnection();
pc1.createDataChannel('datachannel');
const pc2 = new RTCPeerConnection();
test_state_change_event(t, pc2, ['have-remote-offer']);
return pc1.createOffer()
.then(offer => {
return pc2.setRemoteDescription(offer)
.then(() => {
assert_equals(pc2.signalingState, 'have-remote-offer');
assert_session_desc_equals(pc2.remoteDescription, offer);
assert_session_desc_equals(pc2.pendingRemoteDescription, offer);
assert_equals(pc2.currentRemoteDescription, null);
});
});
}, 'setRemoteDescription with valid offer should succeed');
promise_test(t => {
const pc1 = new RTCPeerConnection();
pc1.createDataChannel('datachannel');
const pc2 = new RTCPeerConnection();
// have-remote-offer event should only fire once
test_state_change_event(t, pc2, ['have-remote-offer']);
return pc1.createOffer()
.then(offer => {
return pc2.setRemoteDescription(offer)
.then(() => pc2.setRemoteDescription(offer))
.then(() => {
assert_equals(pc2.signalingState, 'have-remote-offer');
assert_session_desc_equals(pc2.remoteDescription, offer);
assert_session_desc_equals(pc2.pendingRemoteDescription, offer);
assert_equals(pc2.currentRemoteDescription, null);
});
});
}, 'setRemoteDescription multiple times should succeed');
promise_test(t => {
const pc1 = new RTCPeerConnection();
pc1.createDataChannel('datachannel');
const pc2 = new RTCPeerConnection();
// have-remote-offer event should only fire once
test_state_change_event(t, pc2, ['have-remote-offer']);
return pc1.createOffer()
.then(offer1 => {
return pc1.setLocalDescription(offer1)
.then(()=> {
return pc1.createOffer({ offerToReceiveAudio: true })
.then(offer2 => {
assert_session_desc_not_equals(offer1, offer2);
return pc2.setRemoteDescription(offer1)
.then(() => pc2.setRemoteDescription(offer2))
.then(() => {
assert_equals(pc2.signalingState, 'have-remote-offer');
assert_session_desc_equals(pc2.remoteDescription, offer2);
assert_session_desc_equals(pc2.pendingRemoteDescription, offer2);
assert_equals(pc2.currentRemoteDescription, null);
});
});
});
});
}, 'setRemoteDescription multiple times with different offer should succeed');
/*
4.3.1.6. Set the RTCSessionSessionDescription
2.1.4. If the content of description is not valid SDP syntax, then reject p with
an RTCError (with errorDetail set to "sdp-syntax-error" and the
sdpLineNumber attribute set to the line number in the SDP where the syntax
error was detected) and abort these steps.
*/
promise_test(t => {
const pc = new RTCPeerConnection();
return pc.setRemoteDescription({
type: 'offer',
sdp: 'Invalid SDP'
})
.then(() => {
assert_unreached('Expect promise to be rejected');
}, err => {
assert_equals(err.errorDetail, 'sdp-syntax-error',
'Expect error detail field to set to sdp-syntax-error');
assert_true(err instanceof RTCError,
'Expect err to be instance of RTCError');
});
}, 'setRemoteDescription(offer) with invalid SDP should reject with RTCError');
/*
4.3.1.6. Set the RTCSessionSessionDescription
2.1.3. 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]
5.6. If the type is "offer", the PeerConnection state MUST be either "stable" or
"have-remote-offer".
*/
promise_test(t => {
const pc = new RTCPeerConnection();
return pc.createOffer()
.then(offer => {
return pc.setLocalDescription(offer)
.then(() => {
return promise_rejects(t, 'InvalidStateError',
pc.setRemoteDescription(offer));
});
});
}, 'setRemoteDescription(offer) from have-local-offer state should reject with InvalidStateError');
</script>
|
