'``VolumeName`` with different arguments are unequal.'

def test_inequality(self):

    name1 = VolumeName(namespace=u'blah', dataset_id='bloo')
    name2 = VolumeName(namespace=u'blah', dataset_id='bloo2')
    name3 = VolumeName(namespace=u'blah2', dataset_id='bloo')
    self.assertEqual([(name1 == name2), (name1 == name3), (name1 != name2), (name1 != name3)], [False, False, True, True])
