'``VolumeName`` with same arguments are equal.'

def test_equality(self):

    name1 = VolumeName(namespace=u'blah', dataset_id='bloo')
    name2 = VolumeName(namespace=u'blah', dataset_id='bloo')
    self.assertEqual([(name1 == name2), (name1 != name2)], [True, False])
