<!DOCTYPE html>
<html>
<head>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

function isFilteringEnabled()
{
    var pc = new RTCPeerConnection();
    pc.createDataChannel("");

    var candidates = [];
    return new Promise((resolve, reject) => {
        pc.onicecandidate = (event) => {
            if (event.candidate === null) {
                resolve(!candidates.length);
                return;
            }
            candidates.push(event.candidate.candidate);
        };
        pc.createOffer().then((offer) => {
            pc.setLocalDescription(offer);
        });
    });
}

function endTest(message)
{
    result.innerHTML = message;
    if (window.testRunner)
        testRunner.notifyDone();
}

function test() {
    if (window.localStorage.getItem("after-reload") == null) {
        window.localStorage.setItem("after-reload", "true")
        isFilteringEnabled().then((filtering) => {
            if (!filtering) {
                endTest("FAIL, initial ice candidate filtering is off");
                return;
            }
            navigator.mediaDevices.getUserMedia({audio:true, video:true}).then(() => { return isFilteringEnabled(); }).then((filtering) => {
                if (filtering) {
                    endTest("FAIL, initial ice candidate filtering after getUserMedia is on");
                    return;
                }
                internals.forceReload(true);
            });
        });
    } else {
        window.localStorage.clear();
        isFilteringEnabled().then((filtering) => { endTest(filtering ? "PASS" : "FAIL"); });
    }
}
</script>
</head>
<body onload="setTimeout(test, 0);">
  <div>This test requires internals. It checks that after reload, we are back to filtering ice candidate.</div>
  <div id="result"></div>
</body>
</html>