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<!doctype html>
<meta charset=utf-8>
<title></title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src="RTCPeerConnection-helper.js"></script>
<script>
"use strict";
const kSmallTimeoutMs = 100;
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const signalingStateChangeEvent
= new EventWatcher(t, offerer, 'signalingstatechange')
.wait_for('signalingstatechange');
await offerer.setLocalDescription();
await signalingStateChangeEvent;
assert_equals(offerer.signalingState, 'have-local-offer');
}, "Parameterless SLD() in 'stable' goes to 'have-local-offer'");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
await offerer.setLocalDescription();
assert_not_equals(offerer.pendingLocalDescription, null);
}, "Parameterless SLD() in 'stable' sets pendingLocalDescription");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const transceiver = offerer.addTransceiver('audio');
assert_equals(transceiver.mid, null);
await offerer.setLocalDescription();
assert_not_equals(transceiver.mid, null);
}, "Parameterless SLD() in 'stable' assigns transceiver.mid");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const answerer = new RTCPeerConnection();
t.add_cleanup(() => answerer.close());
await answerer.setRemoteDescription(await offerer.createOffer());
const signalingStateChangeEvent
= new EventWatcher(t, answerer, 'signalingstatechange')
.wait_for('signalingstatechange');
await answerer.setLocalDescription();
await signalingStateChangeEvent;
assert_equals(answerer.signalingState, 'stable');
}, "Parameterless SLD() in 'have-remote-offer' goes to 'stable'");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const answerer = new RTCPeerConnection();
t.add_cleanup(() => answerer.close());
await answerer.setRemoteDescription(await offerer.createOffer());
await answerer.setLocalDescription();
assert_not_equals(answerer.currentLocalDescription, null);
}, "Parameterless SLD() in 'have-remote-offer' sets currentLocalDescription");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const answerer = new RTCPeerConnection();
t.add_cleanup(() => answerer.close());
offerer.addTransceiver('audio');
const onTransceiverPromise = new Promise(resolve =>
answerer.ontrack = e => resolve(e.transceiver));
await answerer.setRemoteDescription(await offerer.createOffer());
const transceiver = await onTransceiverPromise;
await answerer.setLocalDescription();
assert_equals(transceiver.currentDirection, 'recvonly');
}, "Parameterless SLD() in 'have-remote-offer' sets " +
"transceiver.currentDirection");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const offer = await offerer.createOffer();
await offerer.setLocalDescription();
// assert_true() is used rather than assert_equals() so that if the assertion
// fails, the -expected.txt file is not different on each run.
assert_true(offerer.pendingLocalDescription.sdp == offer.sdp,
"offerer.pendingLocalDescription.sdp == offer.sdp");
}, "Parameterless SLD() uses [[LastCreatedOffer]] if it is still valid");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const answerer = new RTCPeerConnection();
t.add_cleanup(() => answerer.close());
await answerer.setRemoteDescription(await offerer.createOffer());
const answer = await answerer.createAnswer();
await answerer.setLocalDescription();
// assert_true() is used rather than assert_equals() so that if the assertion
// fails, the -expected.txt file is not different on each run.
assert_true(answerer.currentLocalDescription.sdp == answer.sdp,
"answerer.currentLocalDescription.sdp == answer.sdp");
}, "Parameterless SLD() uses [[LastCreatedAnswer]] if it is still valid");
promise_test(async t => {
const offerer = new RTCPeerConnection();
offerer.close();
try {
await offerer.setLocalDescription();
assert_not_reached();
} catch (e) {
assert_equals(e.name, "InvalidStateError");
}
}, "Parameterless SLD() rejects with InvalidStateError if already closed");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const p = Promise.race([
offerer.setLocalDescription(),
new Promise(r => t.step_timeout(() => r("timeout"), kSmallTimeoutMs))
]);
offerer.close();
assert_equals(await p, "timeout");
}, "Parameterless SLD() never settles if closed while pending");
promise_test(async t => {
const offerer = new RTCPeerConnection();
t.add_cleanup(() => offerer.close());
const answerer = new RTCPeerConnection();
t.add_cleanup(() => answerer.close());
// Implicitly create an offer.
await offerer.setLocalDescription();
await answerer.setRemoteDescription(offerer.pendingLocalDescription);
// Implicitly create an answer.
await answerer.setLocalDescription();
await offerer.setRemoteDescription(answerer.currentLocalDescription);
}, "Parameterless SLD() in a full O/A exchange succeeds");
promise_test(async t => {
const answerer = new RTCPeerConnection();
try {
await answerer.setRemoteDescription();
assert_not_reached();
} catch (e) {
assert_equals(e.name, "TypeError");
}
}, "Parameterless SRD() rejects with TypeError.");
promise_test(async t => {
const offerer = new RTCPeerConnection();
const {sdp} = await offerer.createOffer();
new RTCSessionDescription({type: "offer", sdp});
try {
new RTCSessionDescription({sdp});
assert_not_reached();
} catch (e) {
assert_equals(e.name, "TypeError");
}
}, "RTCSessionDescription constructed without type throws TypeError");
</script>
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