# Copyright 2014 Rackspace
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from barbicanclient import client as barbican_client
import mock
from oslo_config import cfg

import octavia.certificates.common.auth.barbican_acl as barbican_acl
import octavia.certificates.manager.barbican as barbican_cert_mgr
from octavia.common import keystone
import octavia.tests.unit.base as base

CONF = cfg.CONF
CONF.import_group('certificates', 'octavia.common.config')


class TestBarbicanACLAuth(base.TestCase):

    def setUp(self):
        # Reset the client
        keystone._SESSION = None
        CONF.set_override(name='region_name', override=None,
                          group='certificates')
        CONF.set_override(name='endpoint_type', override='publicURL',
                          group='certificates')
        super(TestBarbicanACLAuth, self).setUp()

    def test_get_barbican_client(self):
        # There should be no existing client
        self.assertIsNone(keystone._SESSION)

        # Mock out the keystone session and get the client
        keystone._SESSION = mock.MagicMock()
        acl_auth_object = barbican_acl.BarbicanACLAuth()
        bc1 = acl_auth_object.get_barbican_client()

        # Our returned client should be an instance of barbican_client.Client
        self.assertIsInstance(
            bc1,
            barbican_client.Client
        )

        # Getting the session again with new class should get the same object
        acl_auth_object2 = barbican_acl.BarbicanACLAuth()
        bc2 = acl_auth_object2.get_barbican_client()
        self.assertIs(bc1, bc2)

    def test_load_auth_driver(self):
        bcm = barbican_cert_mgr.BarbicanCertManager()
        self.assertIsInstance(bcm.auth, barbican_acl.BarbicanACLAuth)