# Authors:
#   Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008  Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 only
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

"""
Test the `ipalib.backend` module.
"""

from ipalib import  backend, plugable, errors
from tests.util import ClassChecker, raises


class test_Backend(ClassChecker):
    """
    Test the `ipalib.backend.Backend` class.
    """

    _cls = backend.Backend

    def test_class(self):
        assert self.cls.__bases__ == (plugable.Plugin,)
        assert self.cls.__proxy__ is False


class test_Context(ClassChecker):
    """
    Test the `ipalib.backend.Context` class.
    """

    _cls = backend.Context

    def test_get_value(self):
        """
        Test the `ipalib.backend.Context.get_value` method.
        """
        class Subclass(self.cls):
            pass
        o = Subclass()
        e = raises(NotImplementedError, o.get_value)
        assert str(e) == 'Subclass.get_value()'