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#
# Copyright 2012 New Dream Network, LLC (DreamHost)
# Copyright 2013 eNovance
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
# Julien Danjou <julien@danjou.info>
#
# 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.
"""Base classes for API tests."""
import fixtures
import os
import uuid
import warnings
from oslo.config import fixture as fixture_config
from oslotest import mockpatch
import six
from six.moves.urllib import parse as urlparse
import testscenarios.testcase
from testtools import testcase
from ceilometer import storage
from ceilometer.tests import base as test_base
class MongoDbManager(fixtures.Fixture):
def __init__(self, url):
self._url = url
def setUp(self):
super(MongoDbManager, self).setUp()
with warnings.catch_warnings():
warnings.filterwarnings(
action='ignore',
message='.*you must provide a username and password.*')
try:
self.connection = storage.get_connection(
self.url, 'ceilometer.metering.storage')
self.alarm_connection = storage.get_connection(
self.url, 'ceilometer.alarm.storage')
except storage.StorageBadVersion as e:
raise testcase.TestSkipped(six.text_type(e))
@property
def url(self):
return '%(url)s_%(db)s' % {
'url': self._url,
'db': uuid.uuid4().hex
}
class HBaseManager(fixtures.Fixture):
def __init__(self, url):
self._url = url
def setUp(self):
super(HBaseManager, self).setUp()
self.connection = storage.get_connection(
self.url, 'ceilometer.metering.storage')
self.alarm_connection = storage.get_connection(
self.url, 'ceilometer.alarm.storage')
@property
def url(self):
return '%s?table_prefix=%s' % (
self._url,
uuid.uuid4().hex
)
class SQLiteManager(fixtures.Fixture):
def __init__(self, url):
self.url = url
def setUp(self):
super(SQLiteManager, self).setUp()
self.connection = storage.get_connection(
self.url, 'ceilometer.metering.storage')
self.alarm_connection = storage.get_connection(
self.url, 'ceilometer.alarm.storage')
class TestBase(testscenarios.testcase.WithScenarios, test_base.BaseTestCase):
DRIVER_MANAGERS = {
'mongodb': MongoDbManager,
'db2': MongoDbManager,
'sqlite': SQLiteManager,
'hbase': HBaseManager,
}
db_url = 'sqlite://' # NOTE(Alexei_987) Set default db url
def setUp(self):
super(TestBase, self).setUp()
engine = urlparse.urlparse(self.db_url).scheme
# NOTE(Alexei_987) Shortcut to skip expensive db setUp
test_method = self._get_test_method()
if (hasattr(test_method, '_run_with')
and engine not in test_method._run_with):
raise testcase.TestSkipped(
'Test is not applicable for %s' % engine)
self.CONF = self.useFixture(fixture_config.Config()).conf
self.CONF([], project='ceilometer')
self.db_manager = self._get_driver_manager(engine)(self.db_url)
self.useFixture(self.db_manager)
self.conn = self.db_manager.connection
self.conn.upgrade()
self.alarm_conn = self.db_manager.alarm_connection
self.alarm_conn.upgrade()
self.useFixture(mockpatch.Patch('ceilometer.storage.get_connection',
side_effect=self._get_connection))
# Set a default location for the pipeline config file so the
# tests work even if ceilometer is not installed globally on
# the system.
self.CONF.import_opt('pipeline_cfg_file', 'ceilometer.pipeline')
self.CONF.set_override(
'pipeline_cfg_file',
self.path_get('etc/ceilometer/pipeline.yaml')
)
def tearDown(self):
self.alarm_conn.clear()
self.alarm_conn = None
self.conn.clear()
self.conn = None
super(TestBase, self).tearDown()
def _get_connection(self, url, namespace):
if namespace == "ceilometer.alarm.storage":
return self.alarm_conn
return self.conn
def _get_driver_manager(self, engine):
manager = self.DRIVER_MANAGERS.get(engine)
if not manager:
raise ValueError('No manager available for %s' % engine)
return manager
def run_with(*drivers):
"""Used to mark tests that are only applicable for certain db driver.
Skips test if driver is not available.
"""
def decorator(test):
if isinstance(test, type) and issubclass(test, TestBase):
# Decorate all test methods
for attr in dir(test):
value = getattr(test, attr)
if callable(value) and attr.startswith('test_'):
value.__func__._run_with = drivers
else:
test._run_with = drivers
return test
return decorator
@six.add_metaclass(test_base.SkipNotImplementedMeta)
class MixinTestsWithBackendScenarios(object):
scenarios = [
('sqlite', {'db_url': 'sqlite://'}),
('mongodb', {'db_url': os.environ.get('CEILOMETER_TEST_MONGODB_URL')}),
('hbase', {'db_url': os.environ.get('CEILOMETER_TEST_HBASE_URL',
'hbase://__test__')}),
('db2', {'db_url': (os.environ.get('CEILOMETER_TEST_DB2_URL') or
os.environ.get('CEILOMETER_TEST_MONGODB_URL',
'').replace('mongodb://',
'db2://'))})
]
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