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<!doctype html>
<meta charset=utf-8>
<title>RTCRtpReceiver</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
'use strict';
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const transceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
assert_equals(transceiver.receiver.transport, null);
}, 'RTCRtpReceiver should have a null transport initially');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const transceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
await pc1.setLocalDescription();
assert_true(transceiver.receiver.transport instanceof RTCDtlsTransport);
}, 'RTCRtpReceiver should have a transport after sLD(offer)');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const transceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
await pc1.setLocalDescription();
await pc1.setLocalDescription({type: 'rollback', sdp: ''});
assert_equals(transceiver.receiver.transport, null);
}, 'RTCRtpReceiver should have a null transport after rollback of sLD(offer)');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
const receiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
await pc2.setRemoteDescription(await pc1.createOffer());
const transceiver = pc2.getTransceivers()[0];
assert_equals(transceiver.receiver.transport, null);
}, 'RTCRtpReceiver should have a null transport after sRD(offer)');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const transceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
await pc1.setLocalDescription();
assert_true(transceiver.sender.transport instanceof RTCDtlsTransport);
assert_true(transceiver.receiver.transport instanceof RTCDtlsTransport);
assert_equals(transceiver.receiver.transport, transceiver.sender.transport);
}, 'RTCRtpReceiver should have the same transport object as its corresponding RTCRtpSender');
promise_test(async t => {
const pc1 = new RTCPeerConnection({bundlePolicy: 'max-bundle'});
t.add_cleanup(() => pc1.close());
const audioTransceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
const videoTransceiver = pc1.addTransceiver('video', { direction: 'recvonly' });
await pc1.setLocalDescription();
assert_equals(videoTransceiver.receiver.transport, audioTransceiver.receiver.transport);
}, 'RTCRtpReceivers that share a bundle transport should have the same transport object');
promise_test(async t => {
const pc1 = new RTCPeerConnection({bundlePolicy: 'max-compat'});
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
const audioTransceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
const videoTransceiver = pc1.addTransceiver('video', { direction: 'recvonly' });
await pc1.setLocalDescription();
assert_not_equals(videoTransceiver.receiver.transport, audioTransceiver.receiver.transport);
await pc2.setRemoteDescription(pc1.localDescription);
await pc1.setRemoteDescription(await pc2.createAnswer());
// pc2 will accept the bundle, so these should be the same now
assert_equals(videoTransceiver.receiver.transport, audioTransceiver.receiver.transport);
}, 'RTCRtpReceivers that do not necessarily share a bundle transport should not have the same transport object');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
const transceiver = pc1.addTransceiver('audio', { direction: 'recvonly' });
await pc1.setLocalDescription();
const transportBefore = transceiver.receiver.transport;
await pc2.setRemoteDescription(pc1.localDescription);
await pc1.setRemoteDescription(await pc2.createAnswer());
await pc1.setLocalDescription(await pc1.createOffer({iceRestart: true}));
const transportAfter = transceiver.receiver.transport;
assert_equals(transportAfter, transportBefore);
}, 'RTCRtpReceiver should have the same transport object after an ICE restart');
</script>
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