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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

/**
 * What this is aimed to test:
 *
 * Ensure that History (through category cache) notifies us just once.
 */

var gObserver = {
  notifications: 0,
  observe(aSubject, aTopic, aData) {
    this.notifications++;
  },
};
Services.obs.addObserver(gObserver, PlacesUtils.TOPIC_EXPIRATION_FINISHED);

add_task(async function test_history_expirations_notify_just_once() {
  // Set interval to a large value so we don't expire on it.
  setInterval(3600); // 1h

  promiseForceExpirationStep(1);

  await new Promise(resolve => {
    do_timeout(2000, resolve);
  });

  Assert.equal(gObserver.notifications, 1);

  Services.obs.removeObserver(gObserver, PlacesUtils.TOPIC_EXPIRATION_FINISHED);
});