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comparison: js/xpconnect/tests/unit/test_watchdog_hibernate.js
js/xpconnect/tests/unit/test_watchdog_hibernate.js
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 function testBody() { | |
| 6 | |
| 7 setWatchdogEnabled(true); | |
| 8 | |
| 9 // It's unlikely that we've ever hibernated at this point, but the timestamps | |
| 10 // default to 0, so this should always be true. | |
| 11 var now = Date.now() * 1000; | |
| 12 var startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart"); | |
| 13 var stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop"); | |
| 14 do_log_info("Pre-hibernation statistics:"); | |
| 15 do_log_info("now: " + now / 1000000); | |
| 16 do_log_info("startHibernation: " + startHibernation / 1000000); | |
| 17 do_log_info("stopHibernation: " + stopHibernation / 1000000); | |
| 18 do_check_true(startHibernation < now); | |
| 19 do_check_true(stopHibernation < now); | |
| 20 | |
| 21 // When the watchdog runs, it hibernates if there's been no activity for the | |
| 22 // last 2 seconds, otherwise it sleeps for 1 second. As such, given perfect | |
| 23 // scheduling, we should never have more than 3 seconds of inactivity without | |
| 24 // hibernating. To add some padding for automation, we mandate that hibernation | |
| 25 // must begin between 2 and 5 seconds from now. | |
| 26 var timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer); | |
| 27 timer.initWithCallback(continueTest, 10000, Ci.nsITimer.TYPE_ONE_SHOT); | |
| 28 simulateActivityCallback(false); | |
| 29 yield; | |
| 30 | |
| 31 simulateActivityCallback(true); | |
| 32 busyWait(1000); // Give the watchdog time to wake up on the condvar. | |
| 33 var stateChange = Cu.getWatchdogTimestamp("RuntimeStateChange"); | |
| 34 startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart"); | |
| 35 stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop"); | |
| 36 do_log_info("Post-hibernation statistics:"); | |
| 37 do_log_info("stateChange: " + stateChange / 1000000); | |
| 38 do_log_info("startHibernation: " + startHibernation / 1000000); | |
| 39 do_log_info("stopHibernation: " + stopHibernation / 1000000); | |
| 40 // XPCOM timers, JS times, and PR_Now() are apparently not directly | |
| 41 // comparable, as evidenced by certain seemingly-impossible timing values | |
| 42 // that occasionally get logged in windows automation. We're really just | |
| 43 // making sure this behavior is roughly as expected on the macro scale, | |
| 44 // so we add a 1 second fuzz factor here. | |
| 45 const FUZZ_FACTOR = 1 * 1000 * 1000; | |
| 46 do_check_true(stateChange > now + 10*1000*1000 - FUZZ_FACTOR); | |
| 47 do_check_true(startHibernation > now + 2*1000*1000 - FUZZ_FACTOR); | |
| 48 do_check_true(startHibernation < now + 5*1000*1000 + FUZZ_FACTOR); | |
| 49 do_check_true(stopHibernation > now + 10*1000*1000 - FUZZ_FACTOR); | |
| 50 | |
| 51 do_test_finished(); | |
| 52 yield; | |
| 53 } |
