mozilla-release/testing/web-platform/tests/notifications/requestPermission-granted-manual.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Notification.requestPermission (permission=granted)</title>
<link rel="author" title="Intel" href="http://www.intel.com/">
<link rel="author" title="Xin Liu" href="mailto:xinx.liu@intel.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="common.js"></script>
<script>
setup({ explicit_timeout: true })
if (hasNotificationPermission()) {
    async_test(function (t) {
        t.step(function () {
            t.done()
        })
    })
}
</script>