def test_version(self):
manager = MigrationManager(self.db, self.db_name, 'test_migrations')
self.assertIsNone(manager.version(self.app))
manager.apply_version(self.app, 1)
self.assertIsNotNone(manager.version(self.app))
self.assertEquals(manager.version(self.app), 1)
manager.apply_version(self.app, 3)
self.assertEquals(manager.version(self.app), 3)
manager.unapply_version(self.app, 3)
self.assertEquals(manager.version(self.app), 1)
manager.unapply_version(self.app, 1)
self.assertIsNone(manager.version(self.app))
