blob: 034f6334fa0ae9caffeffebc59824deffe4fda19 [file] [log] [blame] [edit]
#!/usr/bin/python
import unittest, tempfile, os
import common
import MySQLdb
from autotest_lib.client.common_lib import global_config
from autotest_lib.database import database_connection, migrate
# Which section of the global config to pull info from. We won't actually use
# that DB, we'll use the corresponding test DB (test_<db name>).
CONFIG_DB = 'AUTOTEST_WEB'
NUM_MIGRATIONS = 3
class DummyMigration(object):
"""\
Dummy migration class that records all migrations done in a class
varaible.
"""
migrations_done = []
def __init__(self, version):
self.version = version
self.name = '%03d_test' % version
@classmethod
def get_migrations_done(cls):
return cls.migrations_done
@classmethod
def clear_migrations_done(cls):
cls.migrations_done = []
@classmethod
def do_migration(cls, version, direction):
cls.migrations_done.append((version, direction))
def migrate_up(self, manager):
self.do_migration(self.version, 'up')
if self.version == 1:
manager.create_migrate_table()
def migrate_down(self, manager):
self.do_migration(self.version, 'down')
MIGRATIONS = [DummyMigration(n) for n in xrange(1, NUM_MIGRATIONS + 1)]
class TestableMigrationManager(migrate.MigrationManager):
def _set_migrations_dir(self, migrations_dir=None):
pass
def get_migrations(self, minimum_version=None, maximum_version=None):
minimum_version = minimum_version or 1
maximum_version = maximum_version or len(MIGRATIONS)
return MIGRATIONS[minimum_version-1:maximum_version]
class MigrateManagerTest(unittest.TestCase):
def setUp(self):
self._database = (
database_connection.DatabaseConnection.get_test_database())
self._database.connect()
self.manager = TestableMigrationManager(self._database)
DummyMigration.clear_migrations_done()
def tearDown(self):
self._database.disconnect()
def test_sync(self):
self.manager.do_sync_db()
self.assertEquals(self.manager.get_db_version(), NUM_MIGRATIONS)
self.assertEquals(DummyMigration.get_migrations_done(),
[(1, 'up'), (2, 'up'), (3, 'up')])
DummyMigration.clear_migrations_done()
self.manager.do_sync_db(0)
self.assertEquals(self.manager.get_db_version(), 0)
self.assertEquals(DummyMigration.get_migrations_done(),
[(3, 'down'), (2, 'down'), (1, 'down')])
def test_sync_one_by_one(self):
for version in xrange(1, NUM_MIGRATIONS + 1):
self.manager.do_sync_db(version)
self.assertEquals(self.manager.get_db_version(),
version)
self.assertEquals(
DummyMigration.get_migrations_done()[-1],
(version, 'up'))
for version in xrange(NUM_MIGRATIONS - 1, -1, -1):
self.manager.do_sync_db(version)
self.assertEquals(self.manager.get_db_version(),
version)
self.assertEquals(
DummyMigration.get_migrations_done()[-1],
(version + 1, 'down'))
def test_null_sync(self):
self.manager.do_sync_db()
DummyMigration.clear_migrations_done()
self.manager.do_sync_db()
self.assertEquals(DummyMigration.get_migrations_done(), [])
class DummyMigrationManager(object):
def __init__(self):
self.calls = []
def execute_script(self, script):
self.calls.append(script)
class MigrationTest(unittest.TestCase):
def setUp(self):
self.manager = DummyMigrationManager()
def _do_migration(self, migration_module):
migration = migrate.Migration('name', 1, migration_module)
migration.migrate_up(self.manager)
migration.migrate_down(self.manager)
self.assertEquals(self.manager.calls, ['foo', 'bar'])
def test_migration_with_methods(self):
class DummyMigration(object):
@staticmethod
def migrate_up(manager):
manager.execute_script('foo')
@staticmethod
def migrate_down(manager):
manager.execute_script('bar')
self._do_migration(DummyMigration)
def test_migration_with_strings(self):
class DummyMigration(object):
UP_SQL = 'foo'
DOWN_SQL = 'bar'
self._do_migration(DummyMigration)
if __name__ == '__main__':
unittest.main()