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'; 23const common = require('../common'); 24const { hijackStderr } = require('../common/hijackstdio'); 25const assert = require('assert'); 26const os = require('os'); 27 28switch (process.argv[2]) { 29 case 'child': 30 return child(); 31 case undefined: 32 return parent(); 33 default: 34 throw new Error(`invalid: ${process.argv[2]}`); 35} 36 37function parent() { 38 const spawn = require('child_process').spawn; 39 const child = spawn(process.execPath, [__filename, 'child']); 40 41 let output = ''; 42 43 child.stderr.on('data', function(c) { 44 output += c; 45 }); 46 47 child.stderr.setEncoding('utf8'); 48 49 child.stderr.on('end', function() { 50 assert.strictEqual(output, `I can still debug!${os.EOL}`); 51 console.log('ok - got expected message'); 52 }); 53 54 child.on('exit', common.mustCall(function(c) { 55 assert(!c); 56 console.log('ok - child exited nicely'); 57 })); 58} 59 60function child() { 61 // Even when all hope is lost... 62 63 process.nextTick = function() { 64 throw new Error('No ticking!'); 65 }; 66 67 hijackStderr(common.mustNotCall('stderr.write must not be called.')); 68 69 process._rawDebug('I can still %s!', 'debug'); 70} 71