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Test Info: Warnings

// META: title=Cookie Store API: ServiceWorker without cookie change subscriptions
// META: global=window,serviceworker
// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
'use strict';
promise_test(async testCase => {
if (self.GLOBAL.isWindow()) {
const registration = await service_worker_unregister_and_register(
testCase, 'resources/empty_sw.js', 'resources/does/not/exist');
testCase.add_cleanup(() => registration.unregister());
// Wait for this service worker to become active before snapshotting the
// subscription state, for consistency with other tests.
await wait_for_state(testCase, registration.installing, 'activated');
self.registration = registration;
} else {
// Wait for this service worker to become active before snapshotting the
// subscription state, for consistency with other tests.
await new Promise(resolve => {
self.addEventListener('activate', event => { resolve(); });
});
}
const subscriptions = await registration.cookies.getSubscriptions();
assert_equals(subscriptions.length, 0);
}, 'getSubscriptions returns an empty array when there are no subscriptions');