test_tracker_addChanged.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

const { Service } = ChromeUtils.importESModule(

  "resource://services-sync/service.sys.mjs"

);

add_task(async function test_tracker_basics() {

  let tracker = new LegacyTracker("Tracker", Service);

  let id = "the_id!";

  _("Make sure nothing exists yet..");

  let changes = await tracker.getChangedIDs();

  Assert.equal(changes[id], null);

  _("Make sure adding of time 0 works");

  await tracker.addChangedID(id, 0);

  changes = await tracker.getChangedIDs();

  Assert.equal(changes[id], 0);

  _("A newer time will replace the old 0");

  await tracker.addChangedID(id, 10);

  changes = await tracker.getChangedIDs();

  Assert.equal(changes[id], 10);

  _("An older time will not replace the newer 10");

  await tracker.addChangedID(id, 5);

  changes = await tracker.getChangedIDs();

  Assert.equal(changes[id], 10);

  _("Adding without time defaults to current time");

  await tracker.addChangedID(id);

  changes = await tracker.getChangedIDs();

  Assert.ok(changes[id] > 10);

});

add_task(async function test_tracker_persistence() {

  let tracker = new LegacyTracker("Tracker", Service);

  let id = "abcdef";

  let promiseSave = new Promise((resolve, reject) => {

    let save = tracker._storage._save;

    tracker._storage._save = function () {

      save.call(tracker._storage).then(resolve, reject);

};

});

  await tracker.addChangedID(id, 5);

  await promiseSave;

  _("IDs saved.");

  const changes = await tracker.getChangedIDs();

  Assert.equal(5, changes[id]);

  let json = await Utils.jsonLoad(["changes", "tracker"], tracker);

  Assert.equal(5, json[id]);

});