# Copyright (c) 2015 OpenStack Foundation.
# All Rights Reserved.

#    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 unittest import mock

from oslotest import base as test_base

from oslo_policy import _checks
from oslo_policy.tests import base
from oslo_policy.tests import token_fixture


class CheckRegisterTestCase(test_base.BaseTestCase):
    @mock.patch.object(_checks, 'registered_checks', {})
    def test_register_check(self):
        class TestCheck(_checks.Check):
            pass

        _checks.register('spam', TestCheck)

        self.assertEqual(dict(spam=TestCheck), _checks.registered_checks)

    @mock.patch.object(_checks, 'registered_checks', {})
    def test_register_check_decorator(self):
        @_checks.register('spam')
        class TestCheck(_checks.Check):
            pass

        self.assertEqual(dict(spam=TestCheck), _checks.registered_checks)


class RuleCheckTestCase(base.PolicyBaseTestCase):
    def test_rule_missing(self):
        self.enforcer.rules = {}
        check = _checks.RuleCheck('rule', 'spam')

        self.assertFalse(check('target', 'creds', self.enforcer))

    def test_rule_false(self):
        self.enforcer.rules = dict(spam=_BoolCheck(False))

        check = _checks.RuleCheck('rule', 'spam')

        self.assertFalse(check('target', 'creds', self.enforcer))