[Zope] Zope unit testing - users?

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is there any way to change the current user in Zope unit tests? I've managed to trace the current user down to SecurityManager._context.user, but reassigning that doesn't seem to make the change. Any hints? I've poked through the Zope source and Products to see if there's any hints - but it doesn't look like anyone unit-tests security restrictions?!? Richard -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (Darwin) iD8DBQE++9RtrGisBEHG6TARAn9aAJ4svSFUua1TNZJBb2dEYG+bG1/fOgCeM+dQ a8pjMvr6jyP/x2EKvVGzh/c= =Psbv -----END PGP SIGNATURE-----