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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# 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 optparse
import unittest
import mock
from openstack.common import config
class TestConfig(unittest.TestCase):
def test_common_options(self):
parser = optparse.OptionParser()
self.assertEquals(0, len(parser.option_groups))
config.add_common_options(parser)
self.assertEquals(1, len(parser.option_groups))
expected_options = ['--verbose', '--debug', '--config-file']
for e in expected_options:
self.assertTrue(parser.option_groups[0].get_option(e),
'Missing required common option: %s' % e)
def test_add_log_options(self):
parser = optparse.OptionParser()
self.assertEquals(0, len(parser.option_groups))
config.add_log_options(parser)
self.assertEquals(1, len(parser.option_groups))
expected_options = ['--log-config', '--log-date-format',
'--log-file', '--log-dir', '--use-syslog']
for e in expected_options:
self.assertTrue(parser.option_groups[0].get_option(e),
'Missing required common option: %s' % e)
def test_parse_options(self):
# test empty args and that parse_options() returns a mapping
# of typed values
parser = optparse.OptionParser()
config.add_common_options(parser)
parsed_options, args = config.parse_options(parser, [])
expected_options = {'verbose': False, 'debug': False,
'config_file': None}
self.assertEquals(expected_options, parsed_options)
# test non-empty args and that parse_options() returns a mapping
# of typed values matching supplied args
parser = optparse.OptionParser()
config.add_common_options(parser)
parsed_options, args = config.parse_options(parser, ['--verbose'])
expected_options = {'verbose': True, 'debug': False,
'config_file': None}
self.assertEquals(expected_options, parsed_options)
# test non-empty args that contain unknown options raises
# a SystemExit exception. Not ideal, but unfortunately optparse
# raises a sys.exit() when it runs into an error instead of raising
# something a bit more useful for libraries. optparse must have been
# written by the same group that wrote unittest ;)
parser = optparse.OptionParser()
config.add_common_options(parser)
self.assertRaises(SystemExit, config.parse_options,
parser, ['--unknown'])
def test_load_paste_config(self):
# Test that config_file cannot by found raises
self.assertRaises(RuntimeError, config.load_paste_config,
'fake_app', {}, [])
# Test that an app cannot be configured
with mock.patch('openstack.common.config.find_config_file',
mock.Mock(return_value=True)):
self.assertRaises(RuntimeError, config.load_paste_config,
'fake_app', {}, [])
def test_get_option_default(self):
default = 'default'
res = config.get_option({}, 'option', default=default)
self.assertEqual(res, default)
def test_get_option_not_found(self):
self.assertRaises(KeyError, config.get_option, {}, 'options')
def test_get_option_bool(self):
options = {'option': False}
res = config.get_option(options, 'option', type='bool')
self.assertEqual(res, False)
def test_get_option_bool_string(self):
options = {'option': 'FALSE'}
res = config.get_option(options, 'option', type='bool')
self.assertEqual(res, False)
def test_get_option_int(self):
options = {'option': '42'}
res = config.get_option(options, 'option', type='int')
self.assertEqual(res, 42)
def test_get_option_float(self):
options = {'option': '2.71828'}
res = config.get_option(options, 'option', type='float')
self.assertEqual(res, 2.71828)
def test_get_option(self):
options = {'option': dict()}
res = config.get_option(options, 'option')
self.assertEqual(res, options['option'])
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