<html>
<head>
<script src="resources/sw-test-pre.js"></script>
</head>
<body>
<script>
navigator.serviceWorker.register("resources/empty-worker.js", { }).then(function(registration) {
    waitForState(registration.installing, "activated").then(function() {
        let worker = registration.active;
        registration.unregister().then(function (success) {
            if (success)
                log("PASS: Unregistration was successful");
            else
                log("FAIL: Unregistration failed");
        }).then(function() {
            waitForState(worker, "redundant").then(function() {
                log("PASS: Worker became redundant after unregistering");
                if (registration.installing)
                    log("FAIL: registration.installing should be null");
                else
                    log("PASS: registration.installing is null");

                if (registration.waiting)
                    log("FAIL: registration.waiting should be null");
                else
                    log("PASS: registration.waiting is null");

                handle = setInterval(function() {
                    if (registration.active)
                        return;

                    log("PASS: registration.active is null");
                    clearInterval(handle);

                    finishSWTest();
                }, 0);
            });
        });
    });
});
</script>
</body>
</html>