187 lines
8.0 KiB
Python
187 lines
8.0 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from unittest import mock
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from alembic import command as alembic_api
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from alembic.runtime import migration as alembic_migration
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from migrate import exceptions as migrate_exceptions
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from migrate.versioning import api as migrate_api
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from oslotest import base as test_base
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from cinder.db import migration
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from cinder.db.sqlalchemy import api as db_api
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class TestDBSync(test_base.BaseTestCase):
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def test_db_sync_legacy_version(self):
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"""We don't allow users to request legacy versions."""
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self.assertRaises(ValueError, migration.db_sync, '402')
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@mock.patch.object(migration, '_upgrade_alembic')
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@mock.patch.object(migration, '_init_alembic_on_legacy_database')
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@mock.patch.object(migration, '_is_database_under_alembic_control')
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@mock.patch.object(migration, '_is_database_under_migrate_control')
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@mock.patch.object(migration, '_find_alembic_conf')
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@mock.patch.object(migration, '_find_migrate_repo')
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@mock.patch.object(db_api, 'get_engine')
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def _test_db_sync(
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self, has_migrate, has_alembic, mock_get_engine, mock_find_repo,
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mock_find_conf, mock_is_migrate, mock_is_alembic, mock_init,
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mock_upgrade,
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):
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mock_is_migrate.return_value = has_migrate
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mock_is_alembic.return_value = has_alembic
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migration.db_sync()
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mock_get_engine.assert_called_once_with()
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mock_find_repo.assert_called_once_with()
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mock_find_conf.assert_called_once_with()
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mock_find_conf.return_value.set_main_option.assert_called_once_with(
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'sqlalchemy.url', str(mock_get_engine.return_value.url),
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)
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mock_is_migrate.assert_called_once_with(
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mock_get_engine.return_value, mock_find_repo.return_value)
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if has_migrate:
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mock_is_alembic.assert_called_once_with(
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mock_get_engine.return_value)
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else:
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mock_is_alembic.assert_not_called()
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# we should only attempt the upgrade of the remaining
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# sqlalchemy-migrate-based migrations and fake apply of the initial
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# alembic migrations if sqlalchemy-migrate is in place but alembic
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# hasn't been used yet
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if has_migrate and not has_alembic:
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mock_init.assert_called_once_with(
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mock_get_engine.return_value,
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mock_find_repo.return_value, mock_find_conf.return_value)
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else:
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mock_init.assert_not_called()
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# however, we should always attempt to upgrade the requested migration
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# to alembic
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mock_upgrade.assert_called_once_with(
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mock_get_engine.return_value, mock_find_conf.return_value, None)
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def test_db_sync_new_deployment(self):
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"""Mimic a new deployment without existing sqlalchemy-migrate cruft."""
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has_migrate = False
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has_alembic = False
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self._test_db_sync(has_migrate, has_alembic)
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def test_db_sync_with_existing_migrate_database(self):
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"""Mimic a deployment currently managed by sqlalchemy-migrate."""
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has_migrate = True
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has_alembic = False
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self._test_db_sync(has_migrate, has_alembic)
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def test_db_sync_with_existing_alembic_database(self):
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"""Mimic a deployment that's already switched to alembic."""
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has_migrate = True
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has_alembic = True
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self._test_db_sync(has_migrate, has_alembic)
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@mock.patch.object(alembic_api, 'current')
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@mock.patch.object(migrate_api, 'db_version')
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@mock.patch.object(migration, '_is_database_under_alembic_control')
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@mock.patch.object(migration, '_is_database_under_migrate_control')
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@mock.patch.object(db_api, 'get_engine')
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@mock.patch.object(migration, '_find_migrate_repo')
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class TestDBVersion(test_base.BaseTestCase):
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def test_db_version_migrate(
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self, mock_find_repo, mock_get_engine, mock_is_migrate,
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mock_is_alembic, mock_migrate_version, mock_alembic_version,
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):
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"""Database is controlled by sqlalchemy-migrate."""
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mock_is_migrate.return_value = True
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mock_is_alembic.return_value = False
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ret = migration.db_version()
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self.assertEqual(mock_migrate_version.return_value, ret)
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mock_find_repo.assert_called_once_with()
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mock_get_engine.assert_called_once_with()
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mock_is_migrate.assert_called_once()
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mock_is_alembic.assert_called_once()
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mock_migrate_version.assert_called_once_with(
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mock_get_engine.return_value, mock_find_repo.return_value)
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mock_alembic_version.assert_not_called()
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def test_db_version_alembic(
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self, mock_find_repo, mock_get_engine, mock_is_migrate,
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mock_is_alembic, mock_migrate_version, mock_alembic_version,
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):
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"""Database is controlled by alembic."""
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mock_is_migrate.return_value = False
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mock_is_alembic.return_value = True
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ret = migration.db_version()
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self.assertEqual(mock_alembic_version.return_value, ret)
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mock_find_repo.assert_called_once_with()
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mock_get_engine.assert_called_once_with()
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mock_is_migrate.assert_called_once()
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mock_is_alembic.assert_called_once()
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mock_migrate_version.assert_not_called()
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mock_alembic_version.assert_called_once_with(
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mock_get_engine.return_value)
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def test_db_version_not_controlled(
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self, mock_find_repo, mock_get_engine, mock_is_migrate,
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mock_is_alembic, mock_migrate_version, mock_alembic_version,
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):
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"""Database is not controlled."""
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mock_is_migrate.return_value = False
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mock_is_alembic.return_value = False
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ret = migration.db_version()
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self.assertIsNone(ret)
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mock_find_repo.assert_called_once_with()
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mock_get_engine.assert_called_once_with()
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mock_is_migrate.assert_called_once()
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mock_is_alembic.assert_called_once()
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mock_migrate_version.assert_not_called()
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mock_alembic_version.assert_not_called()
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class TestDatabaseUnderVersionControl(test_base.BaseTestCase):
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@mock.patch.object(migrate_api, 'db_version')
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def test__is_database_under_migrate_control__true(self, mock_db_version):
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ret = migration._is_database_under_migrate_control('engine', 'repo')
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self.assertTrue(ret)
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mock_db_version.assert_called_once_with('engine', 'repo')
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@mock.patch.object(migrate_api, 'db_version')
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def test__is_database_under_migrate_control__false(self, mock_db_version):
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mock_db_version.side_effect = \
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migrate_exceptions.DatabaseNotControlledError()
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ret = migration._is_database_under_migrate_control('engine', 'repo')
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self.assertFalse(ret)
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mock_db_version.assert_called_once_with('engine', 'repo')
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@mock.patch.object(alembic_migration.MigrationContext, 'configure')
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def test__is_database_under_alembic_control__true(self, mock_configure):
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context = mock_configure.return_value
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context.get_current_revision.return_value = 'foo'
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engine = mock.MagicMock()
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ret = migration._is_database_under_alembic_control(engine)
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self.assertTrue(ret)
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context.get_current_revision.assert_called_once_with()
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@mock.patch.object(alembic_migration.MigrationContext, 'configure')
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def test__is_database_under_alembic_control__false(self, mock_configure):
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context = mock_configure.return_value
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context.get_current_revision.return_value = None
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engine = mock.MagicMock()
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ret = migration._is_database_under_alembic_control(engine)
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self.assertFalse(ret)
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context.get_current_revision.assert_called_once_with()
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