mirror of https://gitee.com/openkylin/nodejs.git
42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
// Flags: --expose-internals
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'use strict';
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require('../common');
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const assert = require('assert');
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const { sleep } = require('internal/util');
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// Make sure we test 0ms timers, since they would had always wanted to run on
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// the current tick, and greater than 0ms timers, for scenarios where the
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// outer timer takes longer to complete than the delay of the nested timer.
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// Since the process of recreating this is identical regardless of the timer
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// delay, these scenarios are in one test.
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const scenarios = [0, 100];
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scenarios.forEach(function(delay) {
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let nestedCalled = false;
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setTimeout(function A() {
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// Create the nested timer with the same delay as the outer timer so that it
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// gets added to the current list of timers being processed by
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// listOnTimeout.
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setTimeout(function B() {
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nestedCalled = true;
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}, delay);
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// Busy loop for the same timeout used for the nested timer to ensure that
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// we are in fact expiring the nested timer.
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sleep(delay);
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// The purpose of running this assert in nextTick is to make sure it runs
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// after A but before the next iteration of the libuv event loop.
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process.nextTick(function() {
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assert.ok(!nestedCalled);
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});
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// Ensure that the nested callback is indeed called prior to process exit.
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process.on('exit', function onExit() {
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assert.ok(nestedCalled);
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});
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}, delay);
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});
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