var test = require('testling');
  
  test('object key order', function (t) {
      var object = {}
      object['a'] = 1
      object['b'] = 2
      object['c'] = 3
      t.deepEqual(object, {a: 1, b: 2, c: 3});
      t.end();
  });
  
  /*
    testling result:
    iexplore/8.0:
      object key order .................................. 1/1
  
    firefox/8.0:
      object key order .................................. 1/1
  
    opera/10.0:
      object key order .................................. 1/1
  
    safari/5.1:
      object key order .................................. 1/1
  
    total ............................................... 4/4
  
  */