nodejs-mozilla/test/parallel/test-timers-unref-remove-ot...

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2022-07-18 11:52:00 +08:00
'use strict';
/*
* The goal of this test is to make sure that, after the regression introduced
* by 934bfe23a16556d05bfb1844ef4d53e8c9887c3d, the fix preserves the following
* behavior of unref timers: if two timers are scheduled to fire at the same
* time, if one unenrolls the other one in its _onTimeout callback, the other
* one will *not* fire.
*
* This behavior is a private implementation detail and should not be
* considered public interface.
*/
require('../common');
const timers = require('timers');
const assert = require('assert');
let nbTimersFired = 0;
const foo = {
_onTimeout: function() {
++nbTimersFired;
timers.unenroll(bar);
}
};
const bar = {
_onTimeout: function() {
++nbTimersFired;
timers.unenroll(foo);
}
};
timers.enroll(bar, 1);
timers._unrefActive(bar);
timers.enroll(foo, 1);
timers._unrefActive(foo);
setTimeout(function() {
assert.notStrictEqual(nbTimersFired, 2);
}, 20);