<!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) => {
    if (window.internals)
        internals.settings.setWebRTCEncodedTransformEnabled(true);

    const worker = new Worker('no-transform.js');
    const data = await new Promise(resolve => worker.onmessage = (event) => resolve(event.data));
    assert_equals(data, "on");
}, "RTCRtpScriptTransformer if insertable stream flag is on");

promise_test(async (test) => {
    if (window.internals)
        internals.settings.setWebRTCEncodedTransformEnabled(false);

    const worker = new Worker('no-transform.js');
    const data = await new Promise(resolve => worker.onmessage = (event) => resolve(event.data));
    assert_equals(data, "off");
}, "no RTCRtpScriptTransformer if insertable stream flag is off");
        </script>
    </body>
</html>