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<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="pc.js"></script>
<script type="application/javascript" src="iceTestUtils.js"></script>
<script type="application/javascript" src="helpers_from_wpt/sdp.js"></script></head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
bug: "1811912",
title: "Tests for RTCIceTransport"
});
const tests = [
async function iceRestartNewGathersFirst() {
await pushPrefs(
['media.peerconnection.nat_simulator.block_udp', true]);
// We block UDP, and configure a fake UDP STUN server; this should result
// in gathering taking a while, because we'll just be sending UDP packets
// off to be eaten by the NAT simulator.
const pc1 = new RTCPeerConnection({ iceServers: [{
urls: ['stun:192.168.1.1']
}] });
const pc2 = new RTCPeerConnection();
const transceiver = pc1.addTransceiver('audio');
await pc1.setLocalDescription();
const {iceTransport} = transceiver.sender.transport;
is(await nextGatheringState(iceTransport), 'gathering');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
pc1.setConfiguration({iceServers: []});
await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
is(iceTransport.gatheringState, 'gathering');
const gatheringDonePromise = nextGatheringState(iceTransport);
// The empty candidate should fire for the new underlying transport
// (created by the ICE restart), but there should be no gathering state
// change yet. (Spec says that the RTCIceTransport object is the same
// here, even thougb there's actually a new transport)
await emptyCandidate(pc1);
// New transport is done gathering, old should not be.
let result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 100))]);
is(result, undefined, 'Gathering should not complete yet');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
// We might or might not have an empty candidate for the generation we
// just abandoned, depending on how the spec shakes out.
// Completing negotiation should result in a transition to complete very
// quickly
result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 100))]);
is(result, 'complete', 'Gathering should complete soon after the ICE restart is complete');
pc1.close();
pc2.close();
await SpecialPowers.popPrefEnv();
},
async function iceRestartNewGathersFirstThenRollback() {
await pushPrefs(
['media.peerconnection.nat_simulator.block_udp', true]);
// This should result in gathering taking a while
const pc1 = new RTCPeerConnection({ iceServers: [{
urls: ['stun:192.168.1.1']
}] });
const pc2 = new RTCPeerConnection();
const transceiver = pc1.addTransceiver('audio');
await pc1.setLocalDescription();
const {iceTransport} = transceiver.sender.transport;
is(await nextGatheringState(iceTransport), 'gathering');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
pc1.setConfiguration({iceServers: []});
await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
is(iceTransport.gatheringState, 'gathering');
const gatheringDonePromise = nextGatheringState(iceTransport);
// This should fire for the new transport, but there should be no
// gathering state change yet.
await emptyCandidate(pc1);
// Rollback should abandon the new transport, and we should remain in
// 'gathering'
await pc1.setLocalDescription({type: 'rollback', sdp: ''});
let result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 1000))]);
is(result, undefined, 'Gathering should not complete');
pc1.close();
pc2.close();
await SpecialPowers.popPrefEnv();
},
async function iceRestartOldGathersFirst() {
await pushPrefs(
['media.peerconnection.nat_simulator.block_udp', true]);
const pc1 = new RTCPeerConnection();
const pc2 = new RTCPeerConnection();
const transceiver = pc1.addTransceiver('audio');
await pc1.setLocalDescription();
const {iceTransport} = transceiver.sender.transport;
is(await nextGatheringState(iceTransport), 'gathering');
is(await nextGatheringState(iceTransport), 'complete');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
// This should result in gathering taking a while
pc1.setConfiguration({ iceServers: [{
urls: ['stun:192.168.1.1']
}] });
await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
is(await nextGatheringState(iceTransport), 'gathering');
const gatheringDonePromise = nextGatheringState(iceTransport);
let result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 100))]);
is(result, undefined, 'Gathering should not complete');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 100))]);
is(result, undefined, 'Gathering should not complete');
pc1.close();
pc2.close();
await SpecialPowers.popPrefEnv();
},
async function iceRestartOldGathersFirstThenRollback() {
await pushPrefs(
['media.peerconnection.nat_simulator.block_udp', true]);
const pc1 = new RTCPeerConnection();
const pc2 = new RTCPeerConnection();
const transceiver = pc1.addTransceiver('audio');
await pc1.setLocalDescription();
const {iceTransport} = transceiver.sender.transport;
is(await nextGatheringState(iceTransport), 'gathering');
is(await nextGatheringState(iceTransport), 'complete');
await pc2.setRemoteDescription(pc1.localDescription);
await pc2.setLocalDescription();
await pc1.setRemoteDescription(pc2.localDescription);
// This should result in gathering taking a while
pc1.setConfiguration({ iceServers: [{
urls: ['stun:192.168.1.1']
}] });
await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
is(await nextGatheringState(iceTransport), 'gathering', 'ICE restart should put us back in gathering');
const gatheringDonePromise = nextGatheringState(iceTransport);
is(iceTransport.gatheringState, 'gathering');
await pc1.setLocalDescription({type: 'rollback', sdp: ''});
const result = await Promise.race([gatheringDonePromise, new Promise(r => setTimeout(r, 200))]);
is(iceTransport.gatheringState, 'complete', 'Rollback of ICE restart to transport that was already done gathering should result in a transition back to "complete"');
is(result, 'complete', 'Rollback that brings the gathering state back to complete should result in a gatheringstatechange event');
pc1.close();
pc2.close();
await SpecialPowers.popPrefEnv();
},
];
runNetworkTest(async () => {
for (const test of tests) {
info(`Running test: ${test.name}`);
try {
await test();
} catch (e) {
ok(false, `Caught ${e.name}: ${e.message} ${e.stack}`);
}
info(`Done running test: ${test.name}`);
// Make sure we don't build up a pile of GC work, and also get PCImpl to
// print their timecards.
await new Promise(r => SpecialPowers.exactGC(r));
}
}, { useIceServer: true });
</script>
</pre>
</body>
</html>
|
