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Test Info: Warnings
- This test has a WPT meta file that expects 3 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /mediacapture-streams/MediaDevices-enumerateDevices-per-origin-ids.sub.https.html - WPT Dashboard Interop Dashboard
<!doctype html>
<html>
<head>
<title>enumerateDevices rotates deviceId across origins and after cookies get cleared</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=permission-helper.js></script>
</head>
<body>
<iframe allow="camera 'src';microphone 'src'" id=same src="/mediacapture-streams/iframe-enumerate.html"></iframe>
<iframe allow="camera 'src';microphone 'src'" id=cross src="https://{{hosts[][www1]}}:{{ports[https][0]}}/mediacapture-streams/iframe-enumerate.html"></iframe>
<script>
let deviceList;
promise_test(async t => {
await setMediaPermission();
const stream = await navigator.mediaDevices.getUserMedia({audio : true, video: true});
stream.getTracks().forEach(t => t.stop());
deviceList = await navigator.mediaDevices.enumerateDevices();
const msgWatcher = new EventWatcher(t, window, ['message']);
frames[0].postMessage('run', '*')
const e = await msgWatcher.wait_for('message');
const iframeDevices = e.data.devices;
assert_equals(deviceList.length, iframeDevices.length, "Same number of devices detected same-origin");
for (const device of deviceList) {
// Look for the same device in the iframe based on deviceId
// "default" can be used across several kinds, so it needs an additional check
// but we limit that check to "default" to detect re-use of deviceId across kinds
const sameDevice = iframeDevices.find(d => d.deviceId === device.deviceId && (device.deviceId !== "default" || d.kind === device.kind));
assert_true(!!sameDevice, "deviceIds stay the same when loaded in same origin");
assert_equals(sameDevice.label, device.label, "labels matches when deviceId matches");
assert_equals(sameDevice.kind, device.kind, "kind matches when deviceId matches");
// The group identifier MUST be uniquely generated for each document.
assert_not_equals(sameDevice.groupId, device.groupId, "groupId is specific to a document");
}
// setting a cookie as a way to detect if cookie clearing gets done
document.cookie = "test=true";
window.localStorage.touched = true;
}, "enumerateDevices has stable deviceIds across same-origin iframe");
promise_test(async t => {
const msgWatcher = new EventWatcher(t, window, ['message']);
frames[1].postMessage('run', '*')
const e = await msgWatcher.wait_for('message');
const iframeDevices = e.data.devices;
assert_equals(deviceList.length, iframeDevices.length, "Same number of devices detected cross-origin");
for (const device of deviceList) {
// An identifier can be reused across origins as long as
// it is not tied to the user and can be guessed by other means
// In practice, "default" is what is used today, so we hardcode it
// to be able to detect the general case of non-shared deviceIds
if (device.deviceId !== "default") {
const sameDevice = iframeDevices.find(d => d.deviceId === device.deviceId);
assert_false(!!sameDevice, "deviceIds are not shared across origin");
}
assert_false(!!iframeDevices.find(d => d.groupId === device.groupId), "groupId is specific to a document");
}
}, "enumerateDevices rotates deviceId across different-origin iframe");
promise_test(async t => {
const iframe = document.createElement("iframe");
iframe.setAttribute("allow", "camera 'src';microphone 'src'");
iframe.src = "/mediacapture-streams/iframe-enumerate-cleared.html";
document.body.appendChild(iframe);
const loadWatcher = new EventWatcher(t, iframe, ['load']);
await loadWatcher.wait_for('load');
assert_implements_optional(document.cookie === "", "Clear-Site-Data not enabled, can't test clearing deviceId");
const msgWatcher = new EventWatcher(t, window, ['message']);
frames[2].postMessage('run', '*')
const e = await msgWatcher.wait_for('message');
const iframeDevices = e.data.devices;
assert_equals(deviceList.length, iframeDevices.length, "Same number of devices detected after clearing cookies");
for (const device of deviceList) {
const sameDevice = iframeDevices.find(d => d.deviceId === device.deviceId);
assert_false(!!sameDevice, "deviceIds are not kept after clearing site data");
assert_false(!!iframeDevices.find(d => d.groupId === device.groupId), "groupId is specific to a document");
}
}, "enumerateDevices rotates deviceId after clearing site data");
</script>
</body>
</html>