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# Copyright 2016 HPE, Inc.
#
# 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 os
import tempfile
import mock
from oslo_config import cfg
import nova.conf.compute
from nova import config
from nova import test
class ConfTest(test.NoDBTestCase):
"""This is a test and pattern for parsing tricky options."""
class TestConfigOpts(cfg.ConfigOpts):
def __call__(self, args=None, default_config_files=None):
if default_config_files is None:
default_config_files = []
return cfg.ConfigOpts.__call__(
self,
args=args,
prog='test',
version='1.0',
usage='%(prog)s FOO BAR',
default_config_files=default_config_files,
validate_default_values=True)
def setUp(self):
super(ConfTest, self).setUp()
self.conf = self.TestConfigOpts()
self.tempdirs = []
def create_tempfiles(self, files, ext='.conf'):
tempfiles = []
for (basename, contents) in files:
if not os.path.isabs(basename):
(fd, path) = tempfile.mkstemp(prefix=basename, suffix=ext)
else:
path = basename + ext
fd = os.open(path, os.O_CREAT | os.O_WRONLY)
tempfiles.append(path)
try:
os.write(fd, contents.encode('utf-8'))
finally:
os.close(fd)
return tempfiles
def test_reserved_huge_page(self):
nova.conf.compute.register_opts(self.conf)
paths = self.create_tempfiles(
[('1',
'[DEFAULT]\n'
'reserved_huge_pages = node:0,size:2048,count:64\n')])
self.conf(['--config-file', paths[0]])
# NOTE(sdague): In oslo.config if you specify a parameter
# incorrectly, it silently drops it from the conf. Which means
# the attr doesn't exist at all. The first attr test here is
# for an unrelated boolean option that is using defaults (so
# will always work. It's a basic control that *anything* is working.
self.assertTrue(hasattr(self.conf, 'force_raw_images'))
self.assertTrue(hasattr(self.conf, 'reserved_huge_pages'),
"Parse error with reserved_huge_pages")
# NOTE(sdague): Yes, this actually parses as an array holding
# a dict.
actual = [{'node': '0', 'size': '2048', 'count': '64'}]
self.assertEqual(actual, self.conf.reserved_huge_pages)
class TestParseArgs(test.NoDBTestCase):
def setUp(self):
super(TestParseArgs, self).setUp()
m = mock.patch('nova.db.sqlalchemy.api.configure')
self.nova_db_config_mock = m.start()
self.addCleanup(self.nova_db_config_mock.stop)
@mock.patch.object(config.log, 'register_options')
def test_parse_args_glance_debug_false(self, register_options):
self.flags(debug=False, group='glance')
config.parse_args([], configure_db=False, init_rpc=False)
self.assertIn('glanceclient=WARN', config.CONF.default_log_levels)
self.nova_db_config_mock.assert_not_called()
@mock.patch.object(config.log, 'register_options')
def test_parse_args_glance_debug_true(self, register_options):
self.flags(debug=True, group='glance')
config.parse_args([], configure_db=True, init_rpc=False)
self.assertIn('glanceclient=DEBUG', config.CONF.default_log_levels)
self.nova_db_config_mock.assert_called_once_with(config.CONF)
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