cpython/Lib/bsddb/test/test_env_close.py
Neal Norwitz 6057b2e645 Create a db_home directory with a unique name so multiple users can
run the test simultaneously.  The simplest thing I found that worked
on both Windows and Unix was to use the PID.  It's unique so should be
sufficient.  This should prevent many of the spurious failures of
the automated tests since they run as different users.

Also cleanup the directory consistenly in the tearDown methods.

It would be nice if someone ensured that the directories are always
created with a consistent name.
2008-02-24 18:47:03 +00:00

103 lines
2.9 KiB
Python

"""TestCases for checking that it does not segfault when a DBEnv object
is closed before its DB objects.
"""
import os
import tempfile
import unittest
try:
# For Pythons w/distutils pybsddb
from bsddb3 import db
except ImportError:
# For Python 2.3
from bsddb import db
from test_all import verbose
# We're going to get warnings in this module about trying to close the db when
# its env is already closed. Let's just ignore those.
try:
import warnings
except ImportError:
pass
else:
warnings.filterwarnings('ignore',
message='DB could not be closed in',
category=RuntimeWarning)
#----------------------------------------------------------------------
class DBEnvClosedEarlyCrash(unittest.TestCase):
def setUp(self):
self.homeDir = os.path.join(tempfile.gettempdir(), 'db_home%d'%os.getpid())
try: os.mkdir(self.homeDir)
except os.error: pass
tempfile.tempdir = self.homeDir
self.filename = os.path.split(tempfile.mktemp())[1]
tempfile.tempdir = None
def tearDown(self):
from test import test_support
test_support.rmtree(self.homeDir)
def test01_close_dbenv_before_db(self):
dbenv = db.DBEnv()
dbenv.open(self.homeDir,
db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
0666)
d = db.DB(dbenv)
d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
try:
dbenv.close()
except db.DBError:
try:
d.close()
except db.DBError:
return
assert 0, \
"DB close did not raise an exception about its "\
"DBEnv being trashed"
# XXX This may fail when using older versions of BerkeleyDB.
# E.g. 3.2.9 never raised the exception.
assert 0, "dbenv did not raise an exception about its DB being open"
def test02_close_dbenv_delete_db_success(self):
dbenv = db.DBEnv()
dbenv.open(self.homeDir,
db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
0666)
d = db.DB(dbenv)
d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
try:
dbenv.close()
except db.DBError:
pass # good, it should raise an exception
del d
try:
import gc
except ImportError:
gc = None
if gc:
# force d.__del__ [DB_dealloc] to be called
gc.collect()
#----------------------------------------------------------------------
def test_suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(DBEnvClosedEarlyCrash))
return suite
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')