File: test-child-process-fork-exec-path.js

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// 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.

var assert = require('assert');
var cp = require('child_process');
var fs = require('fs');
var path = require('path');
var common = require('../common');
var msg = {test: 'this'};
var nodePath = process.execPath;
var copyPath = path.join(common.tmpDir, 'node-copy.exe');

if (process.env.FORK) {
  assert(process.send);
  assert.equal(process.argv[0], copyPath);
  process.send(msg);
  process.exit();
}
else {
  try {
    fs.unlinkSync(copyPath);
  }
  catch (e) {
    if (e.code !== 'ENOENT') throw e;
  }
  fs.writeFileSync(copyPath, fs.readFileSync(nodePath));
  fs.chmodSync(copyPath, '0755');

  // slow but simple
  var envCopy = JSON.parse(JSON.stringify(process.env));
  envCopy.FORK = 'true';
  var child = require('child_process').fork(__filename, {
    execPath: copyPath,
    env: envCopy
  });
  child.on('message', common.mustCall(function(recv) {
    assert.deepEqual(msg, recv);
  }));
  child.on('exit', common.mustCall(function(code) {
    fs.unlinkSync(copyPath);
    assert.equal(code, 0);
  }));
}