def test_unknown_dataset(self):
        unknown_dataset_id = unicode(uuid4())
        return self.assertResult(
            b"DELETE",
            b"/configuration/datasets/%s" % (
                unknown_dataset_id.encode('ascii'),),
            None, NOT_FOUND,
            {u"description": u'Dataset not found.'})
NOT_FOUND is returned if the requested dataset_id doesn't exist.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/control/test/test_httpapi.py/DeleteDatasetTestsMixin.test_unknown_dataset