1// Copyright Joyent, Inc. and other Node contributors. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a 4// copy of this software and associated documentation files (the 5// "Software"), to deal in the Software without restriction, including 6// without limitation the rights to use, copy, modify, merge, publish, 7// distribute, sublicense, and/or sell copies of the Software, and to permit 8// persons to whom the Software is furnished to do so, subject to the 9// following conditions: 10// 11// The above copyright notice and this permission notice shall be included 12// in all copies or substantial portions of the Software. 13// 14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20// USE OR OTHER DEALINGS IN THE SOFTWARE. 21 22'use strict'; 23// Make sure that sync writes to stderr get processed before exiting. 24 25require('../common'); 26 27function parent() { 28 const spawn = require('child_process').spawn; 29 const assert = require('assert'); 30 let i = 0; 31 children.forEach(function(_, c) { 32 const child = spawn(process.execPath, [__filename, String(c)]); 33 let err = ''; 34 35 child.stderr.on('data', function(c) { 36 err += c; 37 }); 38 39 child.on('close', function() { 40 assert.strictEqual(err, `child ${c}\nfoo\nbar\nbaz\n`); 41 console.log(`ok ${++i} child #${c}`); 42 if (i === children.length) 43 console.log(`1..${i}`); 44 }); 45 }); 46} 47 48// using console.error 49function child0() { 50 console.error('child 0'); 51 console.error('foo'); 52 console.error('bar'); 53 console.error('baz'); 54} 55 56// Using process.stderr 57function child1() { 58 process.stderr.write('child 1\n'); 59 process.stderr.write('foo\n'); 60 process.stderr.write('bar\n'); 61 process.stderr.write('baz\n'); 62} 63 64// using a net socket 65function child2() { 66 const net = require('net'); 67 const socket = new net.Socket({ 68 fd: 2, 69 readable: false, 70 writable: true, 71 }); 72 socket.write('child 2\n'); 73 socket.write('foo\n'); 74 socket.write('bar\n'); 75 socket.write('baz\n'); 76} 77 78 79function child3() { 80 console.error('child 3\nfoo\nbar\nbaz'); 81} 82 83function child4() { 84 process.stderr.write('child 4\nfoo\nbar\nbaz\n'); 85} 86 87const children = [ child0, child1, child2, child3, child4 ]; 88 89if (!process.argv[2]) { 90 parent(); 91} else { 92 children[process.argv[2]](); 93 // Immediate process.exit to kill any waiting stuff. 94 process.exit(); 95} 96