/Lib/bsddb/test/test_pickle.py

http://unladen-swallow.googlecode.com/ · Python · 62 lines · 45 code · 13 blank · 4 comment · 11 complexity · c3f3bbd05d80ccb1f28a385c06c5f5e1 MD5 · raw file

  1. import os
  2. import pickle
  3. try:
  4. import cPickle
  5. except ImportError:
  6. cPickle = None
  7. import unittest
  8. from test_all import db, test_support, get_new_environment_path, get_new_database_path
  9. #----------------------------------------------------------------------
  10. class pickleTestCase(unittest.TestCase):
  11. """Verify that DBError can be pickled and unpickled"""
  12. db_name = 'test-dbobj.db'
  13. def setUp(self):
  14. self.homeDir = get_new_environment_path()
  15. def tearDown(self):
  16. if hasattr(self, 'db'):
  17. del self.db
  18. if hasattr(self, 'env'):
  19. del self.env
  20. test_support.rmtree(self.homeDir)
  21. def _base_test_pickle_DBError(self, pickle):
  22. self.env = db.DBEnv()
  23. self.env.open(self.homeDir, db.DB_CREATE | db.DB_INIT_MPOOL)
  24. self.db = db.DB(self.env)
  25. self.db.open(self.db_name, db.DB_HASH, db.DB_CREATE)
  26. self.db.put('spam', 'eggs')
  27. self.assertEqual(self.db['spam'], 'eggs')
  28. try:
  29. self.db.put('spam', 'ham', flags=db.DB_NOOVERWRITE)
  30. except db.DBError, egg:
  31. pickledEgg = pickle.dumps(egg)
  32. #print repr(pickledEgg)
  33. rottenEgg = pickle.loads(pickledEgg)
  34. if rottenEgg.args != egg.args or type(rottenEgg) != type(egg):
  35. raise Exception, (rottenEgg, '!=', egg)
  36. else:
  37. raise Exception, "where's my DBError exception?!?"
  38. self.db.close()
  39. self.env.close()
  40. def test01_pickle_DBError(self):
  41. self._base_test_pickle_DBError(pickle=pickle)
  42. if cPickle:
  43. def test02_cPickle_DBError(self):
  44. self._base_test_pickle_DBError(pickle=cPickle)
  45. #----------------------------------------------------------------------
  46. def test_suite():
  47. return unittest.makeSuite(pickleTestCase)
  48. if __name__ == '__main__':
  49. unittest.main(defaultTest='test_suite')