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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerconnection SDP handling of unknown media types</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../RTCPeerConnection-helper.js"></script>
<script>
'use strict';
promise_test(async t => {
const pc1 = new RTCPeerConnection();
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
t.add_cleanup(() => pc2.close());
const stream = await getNoiseStream({audio: true});
pc1.addTrack(stream.getTracks()[0], stream);
const offer = await pc1.createOffer();
await pc2.setRemoteDescription({
type: 'offer',
sdp: offer.sdp
.replace('m=audio ', 'm=unicorns ')
});
await pc1.setLocalDescription(offer);
const answer = await pc2.createAnswer();
await pc2.setLocalDescription(answer);
// Do not attempt to call pc1.setRemoteDescription.
const [preamble, media_section, postamble] = answer.sdp.split('\r\nm=');
assert_true(typeof(postamble) === 'undefined');
assert_greater_than(media_section.search(
/^unicorns 0/), -1);
}, 'Unknown media types are rejected with the port set to 0');
</script>
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