def _is_test_volume(self, volume):
        """
        Determine whether or not the given volume belongs to a test-created
        Flocker cluster (and is therefore subject to automatic destruction).

        :return: ``True`` if it does, ``False`` if it does not.
        """
        try:
            cluster_id = self._get_cluster_id(volume)
        except __HOLE__:
            return False
        return self._is_test_cluster(cluster_id)
dataset/ETHPy150Open ClusterHQ/flocker/admin/cleanup.py/CleanVolumes._is_test_volume