'use strict'; // Flags: --expose_internals const common = require('../common'); const assert = require('assert'); const cp = require('child_process'); const internalCp = require('internal/child_process'); if (process.argv[2] === 'child') { // Keep the process alive and printing to stdout. setInterval(() => { console.log('foo'); }, 1); } else { // Monkey patch ChildProcess#kill() to kill the process and then throw. const kill = internalCp.ChildProcess.prototype.kill; internalCp.ChildProcess.prototype.kill = function() { kill.apply(this, arguments); throw new Error('mock error'); }; const cmd = `${process.execPath} ${__filename} child`; const options = { maxBuffer: 0 }; const child = cp.exec(cmd, options, common.mustCall((err, stdout, stderr) => { // Verify that if ChildProcess#kill() throws, the error is reported. assert(/^Error: mock error$/.test(err)); assert.strictEqual(stdout, ''); assert.strictEqual(stderr, ''); assert.strictEqual(child.killed, true); })); }