<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
var scope = "my private backyard";
var activeWorker;

promise_test(async (test) => {
    // Opening a cache and check that private browsing service worker does not have access to it.
    self.caches.open("test");

    if (!window.testRunner)
       return Promise.reject("test requires internals API");
    testRunner.setPrivateBrowsingEnabled(true);

    var registration = await navigator.serviceWorker.getRegistration(scope);
    if (registration && registration.scope === scope)
        await registration.unregister();

    var registration = await navigator.serviceWorker.register("serviceworker-private-browsing-worker.js", { scope : scope });
    activeWorker = registration.active;
    if (activeWorker)
        return;
    activeWorker = registration.installing;
    return new Promise(resolve => {
        activeWorker.addEventListener('statechange', () => {
            if (activeWorker.state === "activated")
                resolve();
        });
    });
}, "Setup cache in regular session and service worker in private browsing session");

promise_test(async (test) => {
    var promise = new Promise((resolve, reject) => {
        navigator.serviceWorker.addEventListener("message", test.step_func((event) => {
            if (event.data === "PASS") {
                resolve();
                return;
            }
            reject(event.data);
        }));
    });

    activeWorker.postMessage("TESTCACHE");
    await promise;

}, "Test private browsing service worker has not access to regular cache storage");
</script>
</body>
</html>