new_contents: from __future__ import absolute_import
  
  from pytest import fixture, raises
  
  from openvpn_status.descriptors import (
      LabelProperty, name_descriptors, iter_descriptors)
  
  
  @fixture
  def foo_class():
      @name_descriptors
      class Foo(object):
          foo = LabelProperty('Foo')
          bar = LabelProperty('Bar', default=lambda: 0, input_type=int)
          baz = property(lambda self: self.bar)
          biu = ()
      return Foo
  
  
  def test_label_and_its_name(foo_class):
      foo = foo_class()
      with raises(AttributeError):
          foo.foo
      assert foo.bar is 0
      assert foo.baz is 0
  
      foo.foo = u'1'
      foo.bar = u'2'
  
      assert foo.foo == u'1'
      assert foo.bar == 2
      assert foo.baz == 2
  
  
  def test_iter_descriptors(foo_class):
      assert dict(iter_descriptors(foo_class)) == {
          'foo': foo_class.foo,
          'bar': foo_class.bar,
          'baz': foo_class.baz,
      }
  
subject: Test the descriptors and its helpers