gecko-dev/js/xpconnect/tests/unit/test_watchdog_hibernate.js

54 строки
2.6 KiB
JavaScript

/* 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/. */
function testBody() {
setWatchdogEnabled(true);
// It's unlikely that we've ever hibernated at this point, but the timestamps
// default to 0, so this should always be true.
var now = Date.now() * 1000;
var startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart");
var stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop");
do_log_info("Pre-hibernation statistics:");
do_log_info("now: " + now / 1000000);
do_log_info("startHibernation: " + startHibernation / 1000000);
do_log_info("stopHibernation: " + stopHibernation / 1000000);
do_check_true(startHibernation < now);
do_check_true(stopHibernation < now);
// When the watchdog runs, it hibernates if there's been no activity for the
// last 2 seconds, otherwise it sleeps for 1 second. As such, given perfect
// scheduling, we should never have more than 3 seconds of inactivity without
// hibernating. To add some padding for automation, we mandate that hibernation
// must begin between 2 and 5 seconds from now.
var timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
timer.initWithCallback(continueTest, 10000, Ci.nsITimer.TYPE_ONE_SHOT);
simulateActivityCallback(false);
yield;
simulateActivityCallback(true);
busyWait(1000); // Give the watchdog time to wake up on the condvar.
var stateChange = Cu.getWatchdogTimestamp("RuntimeStateChange");
startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart");
stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop");
do_log_info("Post-hibernation statistics:");
do_log_info("stateChange: " + stateChange / 1000000);
do_log_info("startHibernation: " + startHibernation / 1000000);
do_log_info("stopHibernation: " + stopHibernation / 1000000);
// XPCOM timers, JS times, and PR_Now() are apparently not directly
// comparable, as evidenced by certain seemingly-impossible timing values
// that occasionally get logged in windows automation. We're really just
// making sure this behavior is roughly as expected on the macro scale,
// so we add a 1 second fuzz factor here.
const FUZZ_FACTOR = 1 * 1000 * 1000;
do_check_true(stateChange > now + 10*1000*1000 - FUZZ_FACTOR);
do_check_true(startHibernation > now + 2*1000*1000 - FUZZ_FACTOR);
do_check_true(startHibernation < now + 5*1000*1000 + FUZZ_FACTOR);
do_check_true(stopHibernation > now + 10*1000*1000 - FUZZ_FACTOR);
do_test_finished();
yield;
}