-
Notifications
You must be signed in to change notification settings - Fork 3.2k
/
Copy pathRTCPeerConnection-setLocalDescription-pranswer.html
166 lines (134 loc) · 5.82 KB
/
RTCPeerConnection-setLocalDescription-pranswer.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.setLocalDescription pranswer</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_similar
/*
4.3.2. Interface Definition
[Constructor(optional RTCConfiguration configuration)]
interface RTCPeerConnection : EventTarget {
Promise<void> setLocalDescription(
RTCSessionDescriptionInit description);
readonly attribute RTCSessionDescription? localDescription;
readonly attribute RTCSessionDescription? currentLocalDescription;
readonly attribute RTCSessionDescription? pendingLocalDescription;
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
2.3. 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, 'InvalidStateError',
pc.setLocalDescription({ type: 'pranswer', sdp: offer.sdp })));
}, 'setLocalDescription(pranswer) from stable state should reject with InvalidStateError');
/*
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 "pranswer", then set
connection.pendingLocalDescription to description and signaling state to
have-local-pranswer.
*/
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 => {
const pranswer = { type: 'pranswer', sdp: answer.sdp };
return pc.setLocalDescription(pranswer)
.then(() => {
assert_equals(pc.signalingState, 'have-local-pranswer');
assert_session_desc_similar(pc.remoteDescription, offer);
assert_session_desc_similar(pc.pendingRemoteDescription, offer);
assert_equals(pc.currentRemoteDescription, null);
assert_session_desc_similar(pc.localDescription, pranswer);
assert_session_desc_similar(pc.pendingLocalDescription, pranswer);
assert_equals(pc.currentLocalDescription, null);
assert_array_equals(states, ['have-remote-offer', 'have-local-pranswer']);
});
}));
}, 'setLocalDescription(pranswer) should succeed');
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 => {
const pranswer = { type: 'pranswer', sdp: answer.sdp };
return pc.setLocalDescription(pranswer)
.then(() => pc.setLocalDescription(pranswer))
.then(() => {
assert_array_equals(states, ['have-remote-offer', 'have-local-pranswer']);
});
}));
}, 'setLocalDescription(pranswer) can be applied multiple times while still in have-local-pranswer');
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 => {
const pranswer = { type: 'pranswer', sdp: answer.sdp };
return pc.setLocalDescription(pranswer)
.then(() => 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', 'have-local-pranswer', 'stable']);
});
}));
}, 'setLocalDescription(answer) from have-local-pranswer state should succeed');
</script>