import sys, os import pickle import unittest import glob try: # For Pythons w/distutils pybsddb from bsddb3 import db except ImportError as e: # For Python 2.3 from bsddb import db #---------------------------------------------------------------------- class pickleTestCase(unittest.TestCase): """Verify that DBError can be pickled and unpickled""" db_home = 'db_home' db_name = 'test-dbobj.db' def setUp(self): homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home') self.homeDir = homeDir try: os.mkdir(homeDir) except os.error: pass def tearDown(self): if hasattr(self, 'db'): del self.db if hasattr(self, 'env'): del self.env files = glob.glob(os.path.join(self.homeDir, '*')) for file in files: os.remove(file) def _base_test_pickle_DBError(self, pickle): self.env = db.DBEnv() self.env.open(self.homeDir, db.DB_CREATE | db.DB_INIT_MPOOL) self.db = db.DB(self.env) self.db.open(self.db_name, db.DB_HASH, db.DB_CREATE) self.db.put('spam', 'eggs') assert self.db['spam'] == 'eggs' try: self.db.put('spam', 'ham', flags=db.DB_NOOVERWRITE) except db.DBError as egg: pickledEgg = pickle.dumps(egg) #print repr(pickledEgg) rottenEgg = pickle.loads(pickledEgg) if rottenEgg.args != egg.args or type(rottenEgg) != type(egg): raise Exception(rottenEgg, '!=', egg) else: raise Exception("where's my DBError exception?!?") self.db.close() self.env.close() def test01_pickle_DBError(self): self._base_test_pickle_DBError(pickle=pickle) #---------------------------------------------------------------------- def test_suite(): return unittest.makeSuite(pickleTestCase) if __name__ == '__main__': unittest.main(defaultTest='test_suite')