refstack/refstack/tests/unit/test_migration.py

98 lines
3.6 KiB
Python

# Copyright (c) 2015 Mirantis, 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.
"""Tests for refstack's migrations."""
import alembic
from unittest import mock
from oslotest import base
from refstack.db import migration
from refstack.db.migrations.alembic import utils
class AlembicConfigTestCase(base.BaseTestCase):
@mock.patch('alembic.config.Config')
@mock.patch('os.path.join')
def test_alembic_config(self, os_join, alembic_config):
os_join.return_value = 'fake_path'
alembic_config.return_value = 'fake_config'
result = utils.alembic_config()
self.assertEqual(result, 'fake_config')
alembic_config.assert_called_once_with('fake_path')
class MigrationTestCase(base.BaseTestCase):
"""Test case for alembic's migrations API."""
def setUp(self):
super(MigrationTestCase, self).setUp()
self.config_patcher = mock.patch(
'refstack.db.migrations.alembic.utils.alembic_config')
self.config = self.config_patcher.start()
self.config.return_value = 'fake_config'
self.addCleanup(self.config_patcher.stop)
@mock.patch.object(alembic.migration.MigrationContext, 'configure',
mock.Mock())
def test_version(self):
context = mock.Mock()
context.get_current_revision = mock.Mock()
alembic.migration.MigrationContext.configure.return_value = context
with mock.patch('refstack.db.sqlalchemy.api.get_engine') as get_engine:
engine = mock.Mock()
engine.connect = mock.MagicMock()
get_engine.return_value = engine
migration.version()
context.get_current_revision.assert_called_with()
engine.connect.assert_called_once_with()
@mock.patch('alembic.command.upgrade')
def test_upgrade(self, upgrade):
migration.upgrade('some_revision')
upgrade.assert_called_once_with('fake_config', 'some_revision')
@mock.patch('alembic.command.upgrade')
def test_upgrade_without_revision(self, upgrade):
migration.upgrade(None)
upgrade.assert_called_once_with('fake_config', 'head')
@mock.patch('alembic.command.downgrade')
def test_downgrade(self, downgrade):
migration.downgrade('some_revision')
downgrade.assert_called_once_with('fake_config', 'some_revision')
@mock.patch('alembic.command.downgrade')
def test_downgrade_without_revision(self, downgrade):
migration.downgrade(None)
downgrade.assert_called_once_with('fake_config', 'base')
@mock.patch('alembic.command.stamp')
def test_stamp(self, stamp):
migration.stamp('some_revision')
stamp.assert_called_once_with('fake_config', 'some_revision')
@mock.patch('alembic.command.stamp')
def test_stamp_without_revision(self, stamp):
migration.stamp(None)
stamp.assert_called_once_with('fake_config', 'head')
@mock.patch('alembic.command.revision')
def test_revision(self, revision):
migration.revision('some_message', True)
revision.assert_called_once_with('fake_config', 'some_message', True)