'If the user is not in the user database provided to
L{checkers.UNIXAuthorizedKeysFiles}, an empty iterator is returned
by L{checkers.UNIXAuthorizedKeysFiles.getAuthorizedKeys}.'

def test_noKeysForUnauthorizedUser(self):

    keydb = checkers.UNIXAuthorizedKeysFiles(self.userdb, parseKey=(lambda x: x))
    self.assertEqual([], list(keydb.getAuthorizedKeys('bob')))
