deb-aodh/aodh/tests/db.py
Chris Dent e57d5d2aaa Correct database functional tests
The database related functional tests would not work. Several
changes were required to fix them:

* Clean up permissions in function post_test_hook

  Without this tox can't create its .tox directories. We want to be
  running as user stack against a directory owned by user stack.

  We need to check for a directory named 'devstack' not a file in
  order to get the permissions changes to happen.

* Call pg_ctl initdb, not initdb to create the postgresql database.

* Add a DRIVER_MANAGER for mysql+pymysql (without this all mysql
  tests are skipped, even in the unit tests).

* Change get_connection so it doesn't split on + when looking up
  storage extensions, as we do want to use pymysql.

* Make sure AODH_BACKEND is set and exported in gate_hook.sh

* Mysql requires a database exist when we name it in a sql
  create_engine, replace the placeholder with '' when in mysql.

* Move keystonemiddleware config to the correct section of the paste
  file, temporarily.

Change-Id: I001e34e28353a35148e2101ab90cb3d238bd53cb
2015-08-10 17:12:52 +00:00

232 lines
7.4 KiB
Python

#
# Copyright 2012 New Dream Network, LLC (DreamHost)
# Copyright 2013 eNovance
# Copyright 2015 Red Hat, 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.
"""Base classes for API tests."""
import os
import uuid
import fixtures
import mock
from oslo_config import fixture as fixture_config
from oslotest import mockpatch
import six
from six.moves.urllib import parse as urlparse
import sqlalchemy
import testscenarios.testcase
from testtools import testcase
from aodh import service
from aodh import storage
from aodh.tests import base as test_base
try:
from aodh.tests import mocks
except ImportError:
mocks = None # happybase module is not Python 3 compatible yet
class MongoDbManager(fixtures.Fixture):
def __init__(self, conf):
self.url = '%(url)s_%(db)s' % {
'url': conf.database.connection,
'db': uuid.uuid4().hex,
}
class SQLManager(fixtures.Fixture):
def __init__(self, conf):
self.conf = conf
db_name = 'aodh_%s' % uuid.uuid4().hex
self._engine = sqlalchemy.create_engine(
conf.database.connection.replace(self.url_dbname_placeholder,
self.url_dbname_createstring))
self._conn = self._engine.connect()
self._create_db(self._conn, db_name)
self._conn.close()
self._engine.dispose()
self.url = conf.database.connection.replace(
self.url_dbname_placeholder, db_name)
class PgSQLManager(SQLManager):
url_dbname_placeholder = 'template1'
url_dbname_createstring = url_dbname_placeholder
@staticmethod
def _create_db(conn, db_name):
conn.connection.set_isolation_level(0)
conn.execute('CREATE DATABASE %s WITH TEMPLATE template0;' % db_name)
conn.connection.set_isolation_level(1)
class MySQLManager(SQLManager):
url_dbname_placeholder = 'test'
url_dbname_createstring = ''
@staticmethod
def _create_db(conn, db_name):
conn.execute('CREATE DATABASE %s;' % db_name)
class HBaseManager(fixtures.Fixture):
def __init__(self, conf):
self.url = '%s?table_prefix=%s' % (
conf.database.connection,
os.getenv("AODH_TEST_HBASE_TABLE_PREFIX", "test")
)
def setUp(self):
super(HBaseManager, self).setUp()
# Unique prefix for each test to keep data is distinguished because
# all test data is stored in one table
data_prefix = str(uuid.uuid4().hex)
def table(conn, name):
return mocks.MockHBaseTable(name, conn, data_prefix)
# Mock only real HBase connection, MConnection "table" method
# stays origin.
mock.patch('happybase.Connection.table', new=table).start()
# We shouldn't delete data and tables after each test,
# because it last for too long.
# All tests tables will be deleted in setup-test-env.sh
mock.patch("happybase.Connection.disable_table",
new=mock.MagicMock()).start()
mock.patch("happybase.Connection.delete_table",
new=mock.MagicMock()).start()
mock.patch("happybase.Connection.create_table",
new=mock.MagicMock()).start()
class SQLiteManager(fixtures.Fixture):
def __init__(self, conf):
self.url = "sqlite://"
class TestBase(testscenarios.testcase.WithScenarios, test_base.BaseTestCase):
DRIVER_MANAGERS = {
'mongodb': MongoDbManager,
'mysql': MySQLManager,
'mysql+pymysql': MySQLManager,
'postgresql': PgSQLManager,
'db2': MongoDbManager,
'sqlite': SQLiteManager,
}
if mocks is not None:
DRIVER_MANAGERS['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)
conf = service.prepare_service([])
self.CONF = self.useFixture(fixture_config.Config(conf)).conf
self.CONF.set_override('connection', self.db_url, group="database")
try:
self.db_manager = self._get_driver_manager(engine)(self.CONF)
except ValueError as exc:
self.skipTest("missing driver manager: %s" % exc)
self.useFixture(self.db_manager)
self.CONF.set_override('connection', self.db_manager.url,
group="database")
self.alarm_conn = storage.get_connection_from_config(self.CONF)
self.alarm_conn.upgrade()
self.useFixture(mockpatch.Patch(
'aodh.storage.get_connection_from_config',
side_effect=self._get_connection))
def tearDown(self):
self.alarm_conn.clear()
self.alarm_conn = None
super(TestBase, self).tearDown()
def _get_connection(self, conf):
return self.alarm_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):
if attr.startswith('test_'):
value = getattr(test, attr)
if callable(value):
if six.PY3:
value._run_with = drivers
else:
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://'}),
]
for db in ('MONGODB', 'MYSQL', 'PGSQL', 'HBASE', 'DB2', 'ES'):
if os.environ.get('AODH_TEST_%s_URL' % db):
scenarios.append(
(db.lower(), {'db_url': os.environ.get(
'AODH_TEST_%s_URL' % db)}))
scenarios_db = [db for db, _ in scenarios]
# Insert default value for hbase test
if 'hbase' not in scenarios_db:
scenarios.append(
('hbase', {'db_url': 'hbase://__test__'}))
# Insert default value for db2 test
if 'mongodb' in scenarios_db and 'db2' not in scenarios_db:
scenarios.append(
('db2', {'db_url': os.environ.get('AODH_TEST_MONGODB_URL',
'').replace('mongodb://',
'db2://')}))