text: var
    assert = require('assert'),
    path   = require('path'),
    exec   = require('child_process').exec;
  
  function _spawnTestWithError(testFile, params, cb) {
    _spawnTest(true, testFile, params, cb);
  }
  
  function _spawnTestWithoutError(testFile, params, cb) {
    _spawnTest(false, testFile, params, cb);
  }
  
  function _spawnTest(passError, testFile, params, cb) {
    var
      filename,
      node_path = process.argv[0],
      command = [ node_path, path.join(__dirname, testFile) ].concat(params).join(' ');
  
    exec(command, function _execDone(err, stdout, stderr) {
      if (passError) {
        if (err) {
          return cb(err);
        } else if (stderr.length > 0) {
          return cb(stderr.toString());
        }
      }
  
      return cb(null, stdout.toString());
    });
  }
  
  function _testStat(stat, mode) {
    assert.equal(stat.uid, process.getuid(), 'should have the same UID');
    assert.equal(stat.gid, process.getgid(), 'should have the same GUID');
    assert.equal(stat.mode, mode);
  }
  
  function _testPrefix(prefix) {
    return function _testPrefixGenerated(err, name, fd) {
      assert.equal(path.basename(name).slice(0, prefix.length), prefix, 'should have the provided prefix');
    };
  }
  
  function _testPostfix(postfix) {
    return function _testPostfixGenerated(err, name, fd) {
      assert.equal(name.slice(name.length - postfix.length, name.length), postfix, 'should have the provided postfix');
    };
  }
  
  function _testKeep(type, keep, cb) {
    _spawnTestWithError('keep.js', [ type, keep ], cb);
  }
  
  function _testGraceful(type, graceful, cb) {
    _spawnTestWithoutError('graceful.js', [ type, graceful ], cb);
  }
  
  function _assertName(err, name) {
    assert.isString(name);
    assert.isNotZero(name.length);
  }
  
  function _testUnsafeCleanup(unsafe, cb) {
    _spawnTestWithoutError('unsafe.js', [ 'dir', unsafe ], cb);
  }
  
  module.exports.testStat = _testStat;
  module.exports.testPrefix = _testPrefix;
  module.exports.testPostfix = _testPostfix;
  module.exports.testKeep = _testKeep;
  module.exports.testGraceful = _testGraceful;
  module.exports.assertName = _assertName;
  module.exports.testUnsafeCleanup = _testUnsafeCleanup;
  