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# (c) Copyright 2018 ZTE Corporation.
# 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.
"""Freezer-api DB test base class."""
import fixtures
from oslo_config import cfg
from oslo_db import options as db_options
from freezer_api.db.sqlalchemy import api as sqla_api
from freezer_api.db.sqlalchemy import models
from freezer_api.db import manager
from freezer_api.tests.unit import common
CONF = cfg.CONF
_DB_CACHE = None
IN_MEM_DB_CONN_STRING = 'sqlite://'
class Database(fixtures.Fixture):
def __init__(self, db_api):
self.initialize_sql_session(IN_MEM_DB_CONN_STRING)
self.engine = sqla_api.get_engine()
self.engine.dispose()
conn = self.engine.connect()
self.setup_sqlite()
self._DB = "".join(line for line in conn.connection.iterdump())
self.engine.dispose()
def initialize_sql_session(self, connection_str):
db_options.set_defaults(
CONF,
connection=connection_str)
CONF.set_override('connection', IN_MEM_DB_CONN_STRING,
group='database')
def setup_sqlite(self):
models.register_models(self.engine)
def setUp(self):
super(Database, self).setUp()
conn = self.engine.connect()
conn.connection.executescript(self._DB)
self.addCleanup(self.engine.dispose)
class DbTestCase(common.FreezerBaseTestCase):
def setUp(self):
dbbackend = "sqlalchemy"
dbdriver = "sqlalchemy"
super(DbTestCase, self).setUp()
db_driver = manager.get_db_driver(dbdriver,
backend=dbbackend)
self.dbapi = db_driver.IMPL
global _DB_CACHE
if not _DB_CACHE:
_DB_CACHE = Database(sqla_api)
self.useFixture(_DB_CACHE)
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