def test_group_dao_create_exception_missing_groupname():
    groups = GroupDAO()
    groups.group_create({})
def test_group_dao_update_exception():
    groups = GroupDAO()
    groups.group_update("unknown_group", ["one", "two", "three"])
def test_group_dao_delete_exception():
    groups = GroupDAO()
    groups.group_delete("unknown_group")
def test_group_dao_get_exception():
    groups = GroupDAO()
    groups.group_get("unknown_group")