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OpenStack Study: test_volume_configuration.py

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# Copyright (c) 2012 Rackspace Hosting

# 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.

"""Tests for the configuration wrapper in volume drivers."""

from oslo.config import cfg

from cinder.openstack.common import log as logging

from cinder import test

from cinder.volume import configuration

LOG = logging.getLogger(__name__)

volume_opts = [

cfg.StrOpt('str_opt', default='STR_OPT'),

cfg.BoolOpt('bool_opt', default=False)

]

more_volume_opts = [

cfg.IntOpt('int_opt', default=1),

]

CONF = cfg.CONF

CONF.register_opts(volume_opts)

CONF.register_opts(more_volume_opts)

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class VolumeConfigurationTest(test.TestCase):

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    def setUp(self):

        super(VolumeConfigurationTest, self).setUp()

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    def tearDown(self):

        super(VolumeConfigurationTest, self).tearDown()

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    def test_group_grafts_opts(self):

        c = configuration.Configuration(volume_opts, config_group='foo')

        self.assertEqual(c.str_opt, CONF.foo.str_opt)

        self.assertEqual(c.bool_opt, CONF.foo.bool_opt)

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    def test_opts_no_group(self):

        c = configuration.Configuration(volume_opts)

        self.assertEqual(c.str_opt, CONF.str_opt)

        self.assertEqual(c.bool_opt, CONF.bool_opt)

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    def test_grafting_multiple_opts(self):

        c = configuration.Configuration(volume_opts, config_group='foo')

        c.append_config_values(more_volume_opts)

        self.assertEqual(c.str_opt, CONF.foo.str_opt)

        self.assertEqual(c.bool_opt, CONF.foo.bool_opt)

        self.assertEqual(c.int_opt, CONF.foo.int_opt)

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    def test_safe_get(self):

        c = configuration.Configuration(volume_opts, config_group='foo')

        self.assertIsNone(c.safe_get('none_opt'))