<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
    </head>
    <body>
        <script>

promise_test(async (test) => {
    const pc = new RTCPeerConnection();
    const senderTransform = new SFrameTransform();
    const receiverTransform = new SFrameTransform();
    const sender1 = pc.addTransceiver('audio').sender;
    const sender2 = pc.addTransceiver('video').sender;