'If a volume is specified with an unknown dataset ID, a 404 error is
returned.'

def test_unknown_dataset(self):

    return self.assertResult('POST', '/configuration/containers', {u'node_uuid': self.NODE_A, u'name': u'postgres', u'image': u'postgres', u'volumes': [{u'dataset_id': unicode(uuid4()), u'mountpoint': u'/db'}]}, NOT_FOUND, {u'description': u'Dataset    not    found.'})
