File: test-process-getgroups.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 common = require('../common');
var assert = require('assert');
var exec = require('child_process').exec;

if (process.platform === 'darwin') {
  console.log('Skipping. Output of `id -G` is unreliable on Darwin.');
  return;
}

if (typeof process.getgroups === 'function') {
  var groups = process.getgroups();
  assert(Array.isArray(groups));
  assert(groups.length > 0);
  exec('id -G', function(err, stdout) {
    if (err) throw err;
    var real_groups = stdout.match(/\d+/g).map(Number);
    assert.equal(groups.length, real_groups.length);
    check(groups, real_groups);
    check(real_groups, groups);
  });
}

function check(a, b) {
  for (var i = 0; i < a.length; ++i) assert(b.indexOf(a[i]) !== -1);
}