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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2013 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.
"""Unit tests for DB API."""
from eventlet import tpool
from openstack.common.db import api
from tests import utils as test_utils
def get_backend():
return DBAPI()
class DBAPI(object):
def api_class_call1(_self, *args, **kwargs):
return args, kwargs
class DBAPITestCase(test_utils.BaseTestCase):
def test_deprecated_dbapi_parameters(self):
paths = self.create_tempfiles([('test',
'[DEFAULT]\n'
'db_backend=test_123\n'
'dbapi_use_tpool=True\n'
)])
self.conf(['--config-file', paths[0]])
self.assertEquals(self.conf.database.backend, 'test_123')
self.assertEquals(self.conf.database.use_tpool, True)
def test_dbapi_parameters(self):
paths = self.create_tempfiles([('test',
'[database]\n'
'backend=test_123\n'
'use_tpool=True\n'
)])
self.conf(['--config-file', paths[0]])
self.assertEquals(self.conf.database.backend, 'test_123')
self.assertEquals(self.conf.database.use_tpool, True)
def test_dbapi_api_class_method_and_tpool_false(self):
backend_mapping = {'test_known': 'tests.unit.db.test_api'}
self.config(backend='test_known', use_tpool=False,
group='database')
info = dict(tpool=False)
orig_execute = tpool.execute
def our_execute(*args, **kwargs):
info['tpool'] = True
return orig_execute(*args, **kwargs)
self.stubs.Set(tpool, 'execute', our_execute)
dbapi = api.DBAPI(backend_mapping=backend_mapping)
result = dbapi.api_class_call1(1, 2, kwarg1='meow')
expected = ((1, 2), {'kwarg1': 'meow'})
self.assertEqual(expected, result)
self.assertFalse(info['tpool'])
def test_dbapi_api_class_method_and_tpool_true(self):
backend_mapping = {'test_known': 'tests.unit.db.test_api'}
self.config(backend='test_known', use_tpool=True,
group='database')
info = dict(tpool=False)
orig_execute = tpool.execute
def our_execute(*args, **kwargs):
info['tpool'] = True
return orig_execute(*args, **kwargs)
self.stubs.Set(tpool, 'execute', our_execute)
dbapi = api.DBAPI(backend_mapping=backend_mapping)
result = dbapi.api_class_call1(1, 2, kwarg1='meow')
expected = ((1, 2), {'kwarg1': 'meow'})
self.assertEqual(expected, result)
self.assertTrue(info['tpool'])
def test_dbapi_full_path_module_method(self):
self.config(backend='tests.unit.db.test_api',
group='database')
dbapi = api.DBAPI()
result = dbapi.api_class_call1(1, 2, kwarg1='meow')
expected = ((1, 2), {'kwarg1': 'meow'})
self.assertEqual(expected, result)
def test_dbapi_unknown_invalid_backend(self):
self.config(backend='tests.unit.db.not_existent',
group='database')
dbapi = api.DBAPI()
def call_it():
dbapi.api_class_call1(1, 2, kwarg1='meow')
self.assertRaises(ImportError, call_it)
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