text: // 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');
  const spawn = require('child_process').spawn;
  
  if (process.argv[2] === 'parent')
    parent();
  else
    grandparent();
  
  function grandparent() {
    const child = spawn(process.execPath, [__filename, 'parent']);
    child.stderr.pipe(process.stderr);
    let output = '';
    const input = 'asdfasdf';
  
    child.stdout.on('data', function(chunk) {
      output += chunk;
    });
    child.stdout.setEncoding('utf8');
  
    child.stdin.end(input);
  
    child.on('close', function(code, signal) {
      assert.strictEqual(code, 0);
      assert.strictEqual(signal, null);
      // 'cat' on windows adds a \r\n at the end.
      assert.strictEqual(output.trim(), input.trim());
    });
  }
  
  function parent() {
    // Should not immediately exit.
    spawn('cat', [], { stdio: 'inherit' });
  }
  