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import sys, os
import pickle
try:
import cPickle
except ImportError:
cPickle = None
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)
if cPickle:
def test02_cPickle_DBError(self):
self._base_test_pickle_DBError(pickle=cPickle)
#----------------------------------------------------------------------
def test_suite():
return unittest.makeSuite(pickleTestCase)
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')
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