ironic/ironic/tests/unit/db/base.py

103 lines
3.3 KiB
Python

# Copyright (c) 2012 NTT DOCOMO, INC.
# 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.
"""Ironic DB test base class."""
import os
import shutil
import fixtures
from oslo_config import cfg
from oslo_db.sqlalchemy import enginefacade
from ironic.common import paths
from ironic.db import api as dbapi
from ironic.db.sqlalchemy import migration
from ironic.db.sqlalchemy import models
from ironic.tests.unit import base
CONF = cfg.CONF
_DB_CACHE = None
class Database(fixtures.Fixture):
def __init__(self, engine, db_migrate, sql_connection,
sqlite_db, sqlite_clean_db):
self.sql_connection = sql_connection
self.sqlite_db = sqlite_db
self.sqlite_clean_db = sqlite_clean_db
self.engine = engine
self.engine.dispose()
conn = self.engine.connect()
if sql_connection == "sqlite://":
self.setup_sqlite(db_migrate)
elif sql_connection.startswith('sqlite:///'):
testdb = paths.state_path_rel(sqlite_db)
if os.path.exists(testdb):
return
self.setup_sqlite(db_migrate)
else:
db_migrate.upgrade('head')
self.post_migrations()
if sql_connection == "sqlite://":
conn = self.engine.connect()
self._DB = "".join(line for line in conn.connection.iterdump())
self.engine.dispose()
else:
cleandb = paths.state_path_rel(sqlite_clean_db)
shutil.copyfile(testdb, cleandb)
def setup_sqlite(self, db_migrate):
if db_migrate.version():
return
models.Base.metadata.create_all(self.engine)
db_migrate.stamp('head')
def setUp(self):
super(Database, self).setUp()
if self.sql_connection == "sqlite://":
conn = self.engine.connect()
conn.connection.executescript(self._DB)
self.addCleanup(self.engine.dispose)
else:
shutil.copyfile(paths.state_path_rel(self.sqlite_clean_db),
paths.state_path_rel(self.sqlite_db))
self.addCleanup(os.unlink, self.sqlite_db)
def post_migrations(self):
"""Any addition steps that are needed outside of the migrations."""
class DbTestCase(base.TestCase):
def setUp(self):
super(DbTestCase, self).setUp()
self.dbapi = dbapi.get_instance()
global _DB_CACHE
if not _DB_CACHE:
engine = enginefacade.get_legacy_facade().get_engine()
_DB_CACHE = Database(engine, migration,
sql_connection=CONF.database.connection,
sqlite_db=CONF.database.sqlite_db,
sqlite_clean_db='clean.sqlite')
self.useFixture(_DB_CACHE)