49 lines
2.6 KiB
JavaScript
49 lines
2.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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async function testBody() {
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setWatchdogEnabled(true);
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// It's unlikely that we've ever hibernated at this point, but the timestamps
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// default to 0, so this should always be true.
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var now = Date.now() * 1000;
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var startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart");
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var stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop");
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do_log_info("Pre-hibernation statistics:");
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do_log_info("now: " + now / 1000000);
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do_log_info("startHibernation: " + startHibernation / 1000000);
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do_log_info("stopHibernation: " + stopHibernation / 1000000);
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Assert.less(startHibernation, now, "startHibernation ok");
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Assert.less(stopHibernation, now, "stopHibernation ok");
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// When the watchdog runs, it hibernates if there's been no activity for the
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// last 2 seconds, otherwise it sleeps for 1 second. As such, given perfect
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// scheduling, we should never have more than 3 seconds of inactivity without
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// hibernating. To add some padding for automation, we mandate that hibernation
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// must begin between 2 and 5 seconds from now.
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// Sleep for 10 seconds. Note: we don't use nsITimer here because then we may run
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// arbitrary (idle) events involving script before it fires.
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simulateNoScriptActivity(10);
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busyWait(1000); // Give the watchdog time to wake up on the condvar.
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var stateChange = Cu.getWatchdogTimestamp("ContextStateChange");
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startHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStart");
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stopHibernation = Cu.getWatchdogTimestamp("WatchdogHibernateStop");
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do_log_info("Post-hibernation statistics:");
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do_log_info("stateChange: " + stateChange / 1000000);
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do_log_info("startHibernation: " + startHibernation / 1000000);
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do_log_info("stopHibernation: " + stopHibernation / 1000000);
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// XPCOM timers, JS times, and PR_Now() are apparently not directly
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// comparable, as evidenced by certain seemingly-impossible timing values
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// that occasionally get logged in windows automation. We're really just
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// making sure this behavior is roughly as expected on the macro scale,
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// so we add a 1 second fuzz factor here.
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const FUZZ_FACTOR = 1 * 1000 * 1000;
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Assert.greater(stateChange, now + 10*1000*1000 - FUZZ_FACTOR, "stateChange ok");
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Assert.greater(startHibernation, now + 2*1000*1000 - FUZZ_FACTOR, "startHibernation ok");
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Assert.less(startHibernation, now + 5*1000*1000 + FUZZ_FACTOR, "startHibernation ok");
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Assert.greater(stopHibernation, now + 10*1000*1000 - FUZZ_FACTOR, "stopHibernation ok");
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}
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