122 lines
4.0 KiB
Python
122 lines
4.0 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from alembic import script
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import contextlib
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import mock
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from oslo_db.sqlalchemy import enginefacade
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from oslo_db.sqlalchemy import test_fixtures
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from oslo_db.sqlalchemy import test_migrations
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from oslo_log import log as logging
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from oslo_utils import excutils
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from oslotest import base as test_base
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from vitrage.storage.sqlalchemy import migration
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from vitrage.storage.sqlalchemy import models
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LOG = logging.getLogger(__name__)
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@contextlib.contextmanager
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def patch_with_engine(engine):
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with mock.patch.object(enginefacade.writer, 'get_engine') as patch_engine:
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patch_engine.return_value = engine
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yield
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class WalkWersionsMixin(object):
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def _walk_versions(self, engine=None, alembic_cfg=None):
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with patch_with_engine(engine):
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script_directory = script.ScriptDirectory.from_config(alembic_cfg)
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self.assertIsNone(self.migration_api.version(alembic_cfg))
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versions = [ver for ver in script_directory.walk_revisions()]
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for version in reversed(versions):
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self._migrate_up(engine, alembic_cfg,
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version.revision, with_data=True)
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def _migrate_up(self, engine, config, version, with_data=False):
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"""migrate up to a new version of the db.
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We allow for data insertion and post checks at every
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migration version with special _pre_upgrade_### and
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_check_### functions in the main test.
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"""
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try:
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if with_data:
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data = None
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pre_upgrade = getattr(
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self, "_pre_upgrade_%s" % version, None)
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if pre_upgrade:
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data = pre_upgrade(engine)
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self.migration_api.upgrade(version, config=config)
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self.assertEqual(version, self.migration_api.version(config))
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if with_data:
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check = getattr(self, '_check_%s' % version, None)
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if check:
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check(engine, data)
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except Exception:
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excutils.save_and_reraise_exception(logger=LOG)
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class MigrationCheckersMixin(object):
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def setUp(self):
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super(MigrationCheckersMixin, self).setUp()
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self.engine = enginefacade.writer.get_engine()
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self.config = migration._alembic_config()
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self.migration_api = migration
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def test_walk_versions(self):
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self._walk_versions(self.engine, self.config)
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def test_upgrade_and_version(self):
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with patch_with_engine(self.engine):
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self.migration_api.upgrade('head')
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self.assertIsNotNone(self.migration_api.version())
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class TestMigrationsMySQL(MigrationCheckersMixin,
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WalkWersionsMixin,
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test_fixtures.OpportunisticDBTestMixin):
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FIXTURE = test_fixtures.MySQLOpportunisticFixture
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class ModelsMigrationSyncMixin(object):
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def setUp(self):
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super(ModelsMigrationSyncMixin, self).setUp()
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self.engine = enginefacade.writer.get_engine()
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def get_metadata(self):
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return models.Base.metadata
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def get_engine(self):
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return self.engine
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def db_sync(self, engine):
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with patch_with_engine(engine):
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migration.upgrade('head')
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class ModelsMigrationsMySQL(ModelsMigrationSyncMixin,
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test_migrations.ModelsMigrationsSync,
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test_fixtures.OpportunisticDBTestMixin,
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test_base.BaseTestCase):
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FIXTURE = test_fixtures.MySQLOpportunisticFixture
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