# Copyright (C) 2019 NTT DATA
# 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.

import mock
from requests_mock.contrib import fixture as requests_mock_fixture
import testtools


class FixturedTestCase(testtools.TestCase):
    client_fixture_class = None

    def setUp(self):
        super(FixturedTestCase, self).setUp()
        self.app = mock.MagicMock()
        if self.client_fixture_class:
            self.requests_mock = self.useFixture(requests_mock_fixture.
                                                 Fixture())
            fix = self.client_fixture_class(self.requests_mock)
            self.cs = self.useFixture(fix).client

    def check_parser(self, cmd, args, verify_args):
        cmd_parser = cmd.get_parser('check_parser')
        try:
            parsed_args = cmd_parser.parse_args(args)
        except SystemExit:
            raise ParserException
        for av in verify_args:
            attr, value = av
            if attr:
                self.assertIn(attr, parsed_args)
                self.assertEqual(getattr(parsed_args, attr), value)
        return parsed_args

    def assertNotCalled(self, m, msg=None):
        """Assert a function was not called"""

        if m.called:
            if not msg:
                msg = 'method %s should not have been called' % m
            self.fail(msg)


class ParserException(Exception):
    pass