Quelle test_getTimers.js Sprache: JAVA

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

const { AppConstants } = ChromeUtils.importESModule(
  "resource://gre/modules/AppConstants.sys.mjs"
);

const timerManager = Cc["@mozilla.org/timer-manager;1"].getService(
  Ci.nsITimerManager
);

function newTimer(name, delay, type) {
  let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
  timer.initWithCallback(
    {
      QueryInterface: ChromeUtils.generateQI(["nsITimerCallback", "nsINamed"]),
      name,
      notify: () => {},
    },
    delay,
    type
  );
  return timer;
}

function getTimers() {
  return timerManager.getTimers().filter(t => {
    if (t.name == "BackgroundHangThread_timer") {
      // BHR is Nightly-only, so just ignore it.
      return false;
    }

    if (AppConstants.platform == "win" && t.name == "nsAnonTempFileRemover") {
      // On Windows there's a 3min timer added at startup to then add an
      // idle observer that finally triggers removing leftover temp files.
      // Ignore that too.
      return false;
    }

    return true;
  });
}

function run_test() {
  {
    let timers = getTimers();
    for (let timer of timers) {
      // Print info about unexpected startup timers to help debugging.
      info(`${timer.name}: ${timer.delay}ms, ${timer.type}`);
    }
    Assert.equal(
      timers.length,
      0,
      "there should be no timer at xpcshell startup"
    );
  }

  let timerData = [
    ["t1", 500, Ci.nsITimer.TYPE_ONE_SHOT],
    ["t2", 1500, Ci.nsITimer.TYPE_REPEATING_SLACK],
    ["t3", 2500, Ci.nsITimer.TYPE_REPEATING_PRECISE],
    ["t4", 3500, Ci.nsITimer.TYPE_REPEATING_PRECISE_CAN_SKIP],
    ["t5", 5500, Ci.nsITimer.TYPE_REPEATING_SLACK_LOW_PRIORITY],
    ["t6", 7500, Ci.nsITimer.TYPE_ONE_SHOT_LOW_PRIORITY],
  ];

  info("Add timers one at a time.");
  for (let [name, delay, type] of timerData) {
    let timer = newTimer(name, delay, type);
    let timers = getTimers();
    Assert.equal(timers.length, 1, "there should be only one timer");
    Assert.equal(name, timers[0].name, "the name is correct");
    Assert.equal(delay, timers[0].delay, "the delay is correct");
    Assert.equal(type, timers[0].type, "the type is correct");

    timer.cancel();
    Assert.equal(getTimers().length, 0, "no timer left after cancelling");
  }

  info("Add all timers at once.");
  let timers = [];
  for (let [name, delay, type] of timerData) {
    timers.push(newTimer(name, delay, type));
  }
  while (timers.length) {
    Assert.equal(getTimers().length, timers.length, "correct timer count");
    timers.pop().cancel();
  }
  Assert.equal(getTimers().length, 0, "no timer left after cancelling");
}

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