node/test/parallel/test-child-process-exec-error.js

'use strict';
var common = require('../common');
var assert = require('assert');
var child_process = require('child_process');

function test(fun, code) {
  fun('does-not-exist', common.mustCall(function(err) {
    assert.equal(err.code, code);
    assert(/does\-not\-exist/.test(err.cmd));
  }));
}

if (common.isWindows) {
  test(child_process.exec, 1); // exit code of cmd.exe
} else {
  test(child_process.exec, 127); // exit code of /bin/sh
}

test(child_process.execFile, 'ENOENT');