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common.js needs to be loaded in all tests so that there is checking for variable leaks and possibly other things. However, it does not need to be assigned to a variable if nothing in common.js is referred to elsewhere in the test. PR-URL: https://github.com/nodejs/node/pull/4408 Reviewed-By: James M Snell <jasnell@gmail.com>
52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
'use strict';
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/*
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* This test is aimed at making sure that unref timers queued with
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* timers._unrefActive work correctly.
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*
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* Basically, it queues one timer in the unref queue, and then queues
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* it again each time its timeout callback is fired until the callback
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* has been called ten times.
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*
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* At that point, it unenrolls the unref timer so that its timeout callback
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* is not fired ever again.
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*
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* Finally, a ref timeout is used with a delay large enough to make sure that
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* all 10 timeouts had the time to expire.
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*/
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require('../common');
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const timers = require('timers');
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const assert = require('assert');
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var someObject = {};
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var nbTimeouts = 0;
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/*
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* libuv 0.10.x uses GetTickCount on Windows to implement timers, which uses
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* system's timers whose resolution is between 10 and 16ms. See
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms724408.aspx
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* for more information. That's the lowest resolution for timers across all
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* supported platforms. We're using it as the lowest common denominator,
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* and thus expect 5 timers to be able to fire in under 100 ms.
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*/
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const N = 5;
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const TEST_DURATION = 100;
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timers.unenroll(someObject);
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timers.enroll(someObject, 1);
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someObject._onTimeout = function _onTimeout() {
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++nbTimeouts;
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if (nbTimeouts === N) timers.unenroll(someObject);
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timers._unrefActive(someObject);
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};
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timers._unrefActive(someObject);
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setTimeout(function() {
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assert.equal(nbTimeouts, N);
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}, TEST_DURATION);
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