oslo.db/oslo_db/tests/sqlalchemy/test_migrate_cli.py
Victor Sergeyev 3fb50986fa Refactor database migration manager to use given engine
Removing global engine object introduces some changes
to migration api.
Basically we need to move engine creation to outer scope.
In order to address these issues we need to refactor alembic api.

Co-Authored-By: Dmitry Shulyak <dshulyak@mirantis.com>

Adopted from Ia2f9586c4e9c31339dd7dcd9f45a58e8a8409921

Change-Id: Ic7dcf1d2f38388bd1e5a517ce60190bff499686a
2015-01-27 19:12:16 +00:00

245 lines
9.3 KiB
Python

# 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.
import mock
from oslotest import base as test_base
import sqlalchemy
from oslo_db.sqlalchemy.migration_cli import ext_alembic
from oslo_db.sqlalchemy.migration_cli import ext_migrate
from oslo_db.sqlalchemy.migration_cli import manager
class MockWithCmp(mock.MagicMock):
order = 0
def __init__(self, *args, **kwargs):
super(MockWithCmp, self).__init__(*args, **kwargs)
self.__lt__ = lambda self, other: self.order < other.order
@mock.patch(('oslo_db.sqlalchemy.migration_cli.'
'ext_alembic.alembic.command'))
class TestAlembicExtension(test_base.BaseTestCase):
def setUp(self):
self.migration_config = {'alembic_ini_path': '.',
'db_url': 'sqlite://'}
self.engine = sqlalchemy.create_engine(self.migration_config['db_url'])
self.alembic = ext_alembic.AlembicExtension(
self.engine, self.migration_config)
super(TestAlembicExtension, self).setUp()
def test_check_enabled_true(self, command):
"""Check enabled returns True
Verifies that enabled returns True on non empty
alembic_ini_path conf variable
"""
self.assertTrue(self.alembic.enabled)
def test_check_enabled_false(self, command):
"""Check enabled returns False
Verifies enabled returns False on empty alembic_ini_path variable
"""
self.migration_config['alembic_ini_path'] = ''
alembic = ext_alembic.AlembicExtension(
self.engine, self.migration_config)
self.assertFalse(alembic.enabled)
def test_upgrade_none(self, command):
self.alembic.upgrade(None)
command.upgrade.assert_called_once_with(self.alembic.config, 'head')
def test_upgrade_normal(self, command):
self.alembic.upgrade('131daa')
command.upgrade.assert_called_once_with(self.alembic.config, '131daa')
def test_downgrade_none(self, command):
self.alembic.downgrade(None)
command.downgrade.assert_called_once_with(self.alembic.config, 'base')
def test_downgrade_int(self, command):
self.alembic.downgrade(111)
command.downgrade.assert_called_once_with(self.alembic.config, 'base')
def test_downgrade_normal(self, command):
self.alembic.downgrade('131daa')
command.downgrade.assert_called_once_with(
self.alembic.config, '131daa')
def test_revision(self, command):
self.alembic.revision(message='test', autogenerate=True)
command.revision.assert_called_once_with(
self.alembic.config, message='test', autogenerate=True)
def test_stamp(self, command):
self.alembic.stamp('stamp')
command.stamp.assert_called_once_with(
self.alembic.config, revision='stamp')
def test_version(self, command):
version = self.alembic.version()
self.assertIsNone(version)
@mock.patch(('oslo_db.sqlalchemy.migration_cli.'
'ext_migrate.migration'))
class TestMigrateExtension(test_base.BaseTestCase):
def setUp(self):
self.migration_config = {'migration_repo_path': '.',
'db_url': 'sqlite://'}
self.engine = sqlalchemy.create_engine(self.migration_config['db_url'])
self.migrate = ext_migrate.MigrateExtension(
self.engine, self.migration_config)
super(TestMigrateExtension, self).setUp()
def test_check_enabled_true(self, migration):
self.assertTrue(self.migrate.enabled)
def test_check_enabled_false(self, migration):
self.migration_config['migration_repo_path'] = ''
migrate = ext_migrate.MigrateExtension(
self.engine, self.migration_config)
self.assertFalse(migrate.enabled)
def test_upgrade_head(self, migration):
self.migrate.upgrade('head')
migration.db_sync.assert_called_once_with(
self.migrate.engine, self.migrate.repository, None, init_version=0)
def test_upgrade_normal(self, migration):
self.migrate.upgrade(111)
migration.db_sync.assert_called_once_with(
mock.ANY, self.migrate.repository, 111, init_version=0)
def test_downgrade_init_version_from_base(self, migration):
self.migrate.downgrade('base')
migration.db_sync.assert_called_once_with(
self.migrate.engine, self.migrate.repository, mock.ANY,
init_version=mock.ANY)
def test_downgrade_init_version_from_none(self, migration):
self.migrate.downgrade(None)
migration.db_sync.assert_called_once_with(
self.migrate.engine, self.migrate.repository, mock.ANY,
init_version=mock.ANY)
def test_downgrade_normal(self, migration):
self.migrate.downgrade(101)
migration.db_sync.assert_called_once_with(
self.migrate.engine, self.migrate.repository, 101, init_version=0)
def test_version(self, migration):
self.migrate.version()
migration.db_version.assert_called_once_with(
self.migrate.engine, self.migrate.repository, init_version=0)
def test_change_init_version(self, migration):
self.migration_config['init_version'] = 101
migrate = ext_migrate.MigrateExtension(
self.engine, self.migration_config)
migrate.downgrade(None)
migration.db_sync.assert_called_once_with(
migrate.engine,
self.migrate.repository,
self.migration_config['init_version'],
init_version=self.migration_config['init_version'])
class TestMigrationManager(test_base.BaseTestCase):
def setUp(self):
self.migration_config = {'alembic_ini_path': '.',
'migrate_repo_path': '.',
'db_url': 'sqlite://'}
engine = sqlalchemy.create_engine(self.migration_config['db_url'])
self.migration_manager = manager.MigrationManager(
self.migration_config, engine)
self.ext = mock.Mock()
self.ext.obj.version = mock.Mock(return_value=0)
self.migration_manager._manager.extensions = [self.ext]
super(TestMigrationManager, self).setUp()
def test_manager_update(self):
self.migration_manager.upgrade('head')
self.ext.obj.upgrade.assert_called_once_with('head')
def test_manager_update_revision_none(self):
self.migration_manager.upgrade(None)
self.ext.obj.upgrade.assert_called_once_with(None)
def test_downgrade_normal_revision(self):
self.migration_manager.downgrade('111abcd')
self.ext.obj.downgrade.assert_called_once_with('111abcd')
def test_version(self):
self.migration_manager.version()
self.ext.obj.version.assert_called_once_with()
def test_version_return_value(self):
version = self.migration_manager.version()
self.assertEqual(0, version)
def test_revision_message_autogenerate(self):
self.migration_manager.revision('test', True)
self.ext.obj.revision.assert_called_once_with('test', True)
def test_revision_only_message(self):
self.migration_manager.revision('test', False)
self.ext.obj.revision.assert_called_once_with('test', False)
def test_stamp(self):
self.migration_manager.stamp('stamp')
self.ext.obj.stamp.assert_called_once_with('stamp')
def test_wrong_config(self):
err = self.assertRaises(ValueError,
manager.MigrationManager,
{'wrong_key': 'sqlite://'})
self.assertEqual('Either database url or engine must be provided.',
err.args[0])
class TestMigrationRightOrder(test_base.BaseTestCase):
def setUp(self):
self.migration_config = {'alembic_ini_path': '.',
'migrate_repo_path': '.',
'db_url': 'sqlite://'}
engine = sqlalchemy.create_engine(self.migration_config['db_url'])
self.migration_manager = manager.MigrationManager(
self.migration_config, engine)
self.first_ext = MockWithCmp()
self.first_ext.obj.order = 1
self.first_ext.obj.upgrade.return_value = 100
self.first_ext.obj.downgrade.return_value = 0
self.second_ext = MockWithCmp()
self.second_ext.obj.order = 2
self.second_ext.obj.upgrade.return_value = 200
self.second_ext.obj.downgrade.return_value = 100
self.migration_manager._manager.extensions = [self.first_ext,
self.second_ext]
super(TestMigrationRightOrder, self).setUp()
def test_upgrade_right_order(self):
results = self.migration_manager.upgrade(None)
self.assertEqual(results, [100, 200])
def test_downgrade_right_order(self):
results = self.migration_manager.downgrade(None)
self.assertEqual(results, [100, 0])