# -*- coding: utf-8 -*-
#
# gvacommon - common parts of gnuviechadmin
# Copyright (C) 2016  Jan Dittberner
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
import os
from unittest import TestCase

from django.core.exceptions import ImproperlyConfigured

from gvacommon.settings_utils import get_env_variable


class GetEnvVariableTest(TestCase):

    def test_get_existing_env_variable(self):
        os.environ['testvariable'] = 'myvalue'
        self.assertEqual(get_env_variable('testvariable'), 'myvalue')

    def test_get_missing_env_variable(self):
        if 'missingvariable' in os.environ:
            del os.environ['missingvariable']
        with self.assertRaises(ImproperlyConfigured) as e:
            get_env_variable('missingvariable')
        self.assertEqual(
            str(e.exception), 'Set the missingvariable environment variable')