deno.land / std@0.166.0 / node / _tools / test / parallel / test-process-beforeexit.js
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// 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';const common = require('../common');const net = require('net');
process.once('beforeExit', common.mustCall(tryImmediate));
function tryImmediate() { setImmediate(common.mustCall(() => { process.once('beforeExit', common.mustCall(tryTimer)); }));}
function tryTimer() { setTimeout(common.mustCall(() => { process.once('beforeExit', common.mustCall(tryListen)); }), 1);}
function tryListen() { net.createServer() .listen(0) .on('listening', common.mustCall(function() { this.close(); process.once('beforeExit', common.mustCall(tryRepeatedTimer)); }));}
// Test that a function invoked from the beforeExit handler can use a timer// to keep the event loop open, which can use another timer to keep the event// loop open, etc.//// After N times, call function `tryNextTick` to test behaviors of the// `process.nextTick`.function tryRepeatedTimer() { const N = 5; let n = 0; const repeatedTimer = common.mustCall(function() { if (++n < N) setTimeout(repeatedTimer, 1); else // n == N process.once('beforeExit', common.mustCall(tryNextTickSetImmediate)); }, N); setTimeout(repeatedTimer, 1);}
// Test if the callback of `process.nextTick` can be invoked.function tryNextTickSetImmediate() { process.nextTick(common.mustCall(function() { setImmediate(common.mustCall(() => { process.once('beforeExit', common.mustCall(tryNextTick)); })); }));}
// Test that `process.nextTick` won't keep the event loop running by itself.function tryNextTick() { process.nextTick(common.mustCall(function() { process.once('beforeExit', common.mustNotCall()); }));}
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