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<!doctype html>
<meta charset="utf-8">
<title>Cookie Store API: reset cookie change subscription list</title>
<link rel="help" href="https://github.com/WICG/cookie-store">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/service-workers/service-worker/resources/test-helpers.sub.js">
</script>
<script src='resources/helpers.js'></script>
<script>
'use strict';
promise_test(async t => {
const registration = await service_worker_unregister_and_register(
t, 'resources/empty_sw.js', 'resources/does/not/exist');
t.add_cleanup(() => registration.unregister());
await wait_for_state(t, registration.installing, 'activated');
await registration.cookies.subscribe(
[{ name: 'cookie-name' }]);
const original_subscriptions = await registration.cookies.getSubscriptions();
assert_equals(original_subscriptions.length, 1,
'subscription count before unregistration');
await registration.unregister();
const new_registration = await navigator.serviceWorker.register(
'resources/empty_sw.js', { scope: 'resources/does/not/exist' });
t.add_cleanup(() => new_registration.unregister());
await wait_for_state(t, new_registration.installing, 'activated');
const new_subscriptions = await new_registration.cookies.getSubscriptions();
assert_equals(new_subscriptions.length, 0,
'subscription count after unregistration');
}, 'cookiechange subscriptions reset across service worker unregistrations');
promise_test(async t => {
const registration = await service_worker_unregister_and_register(
t, 'resources/always_changing_sw.sub.js', 'resources/does/not/exist');
t.add_cleanup(() => registration.unregister());
await wait_for_state(t, registration.installing, 'activated');
await registration.cookies.subscribe(
[{ name: 'cookie-name' }]);
const original_subscriptions = await registration.cookies.getSubscriptions();
assert_equals(original_subscriptions.length, 1,
'subscription count before update');
await registration.update();
const worker = await wait_for_update(t, registration);
await wait_for_state(t, worker, 'activated');
const update_subscriptions = await registration.cookies.getSubscriptions();
assert_equals(update_subscriptions.length, 1,
'subscription count after update');
}, 'cookiechange subscriptions persist across service worker updates');
</script>
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