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# Copyright (C) 2015 by the Free Software Foundation, Inc.
#
# This file is part of GNU Mailman.
#
# GNU Mailman is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# GNU Mailman. If not, see <http://www.gnu.org/licenses/>.
"""Test database schema migrations with Alembic"""
__all__ = [
'TestMigrations',
]
import unittest
import alembic.command
import sqlalchemy as sa
from mailman.config import config
from mailman.database.alembic import alembic_cfg
from mailman.database.model import Model
from mailman.testing.layers import ConfigLayer
class TestMigrations(unittest.TestCase):
layer = ConfigLayer
def setUp(self):
alembic.command.stamp(alembic_cfg, 'head')
def tearDown(self):
# Drop and restore a virgin database.
md = sa.MetaData(bind=config.db.engine)
md.reflect()
md.drop_all()
Model.metadata.create_all(config.db.engine)
def test_all_migrations(self):
script_dir = alembic.script.ScriptDirectory.from_config(alembic_cfg)
revisions = [sc.revision for sc in
script_dir.walk_revisions('base', 'heads')]
for revision in revisions:
alembic.command.downgrade(alembic_cfg, revision)
revisions.reverse()
for revision in revisions:
alembic.command.upgrade(alembic_cfg, revision)
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