deno.land / std@0.166.0 / node / _tools / test / parallel / test-next-tick-intentional-starvation.js

test-next-tick-intentional-starvation.js
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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// Copyright Joyent, Inc. and other Node contributors.//// Permission is hereby granted, free of charge, to any person obtaining a// copy of this software and associated documentation files (the// "Software"), to deal in the Software without restriction, including// without limitation the rights to use, copy, modify, merge, publish,// distribute, sublicense, and/or sell copies of the Software, and to permit// persons to whom the Software is furnished to do so, subject to the// following conditions://// The above copyright notice and this permission notice shall be included// in all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';require('../common');const assert = require('assert');
// This is the inverse of test-next-tick-starvation. it verifies// that process.nextTick will *always* come before other events
let ran = false;let starved = false;const start = +new Date();let timerRan = false;
function spin() { ran = true; const now = +new Date(); if (now - start > 100) { console.log('The timer is starving, just as we planned.'); starved = true;
// now let it out. return; }
process.nextTick(spin);}
function onTimeout() { if (!starved) throw new Error('The timer escaped!'); console.log('The timer ran once the ban was lifted'); timerRan = true;}
spin();setTimeout(onTimeout, 50);
process.on('exit', function() { assert.ok(ran); assert.ok(starved); assert.ok(timerRan);});
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a year ago