cpython/Lib/bsddb/test/test_queue.py
Gregory P. Smith 41631e8f66 Adds basic support for BerkeleyDB 4.2.x. Compiles and passes tests; new
features in BerkeleyDB not exposed.  notably: the DB_MPOOLFILE interface
has not yet been wrapped in an object.

Adds support for building and installing bsddb3 in python2.3 that has
an older version of this module installed as bsddb without conflicts.
The pybsddb.sf.net build/packaged version of the module uses a
dynamicly loadable module called _pybsddb rather than _bsddb.
2003-09-21 00:08:14 +00:00

174 lines
3.9 KiB
Python

"""
TestCases for exercising a Queue DB.
"""
import sys, os, string
import tempfile
from pprint import pprint
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
#----------------------------------------------------------------------
class SimpleQueueTestCase(unittest.TestCase):
def setUp(self):
self.filename = tempfile.mktemp()
def tearDown(self):
try:
os.remove(self.filename)
except os.error:
pass
def test01_basic(self):
# Basic Queue tests using the deprecated DBCursor.consume method.
if verbose:
print '\n', '-=' * 30
print "Running %s.test01_basic..." % self.__class__.__name__
d = db.DB()
d.set_re_len(40) # Queues must be fixed length
d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
if verbose:
print "before appends" + '-' * 30
pprint(d.stat())
for x in string.letters:
d.append(x * 40)
assert len(d) == 52
d.put(100, "some more data")
d.put(101, "and some more ")
d.put(75, "out of order")
d.put(1, "replacement data")
assert len(d) == 55
if verbose:
print "before close" + '-' * 30
pprint(d.stat())
d.close()
del d
d = db.DB()
d.open(self.filename)
if verbose:
print "after open" + '-' * 30
pprint(d.stat())
d.append("one more")
c = d.cursor()
if verbose:
print "after append" + '-' * 30
pprint(d.stat())
rec = c.consume()
while rec:
if verbose:
print rec
rec = c.consume()
c.close()
if verbose:
print "after consume loop" + '-' * 30
pprint(d.stat())
assert len(d) == 0, \
"if you see this message then you need to rebuild " \
"BerkeleyDB 3.1.17 with the patch in patches/qam_stat.diff"
d.close()
def test02_basicPost32(self):
# Basic Queue tests using the new DB.consume method in DB 3.2+
# (No cursor needed)
if verbose:
print '\n', '-=' * 30
print "Running %s.test02_basicPost32..." % self.__class__.__name__
if db.version() < (3, 2, 0):
if verbose:
print "Test not run, DB not new enough..."
return
d = db.DB()
d.set_re_len(40) # Queues must be fixed length
d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
if verbose:
print "before appends" + '-' * 30
pprint(d.stat())
for x in string.letters:
d.append(x * 40)
assert len(d) == 52
d.put(100, "some more data")
d.put(101, "and some more ")
d.put(75, "out of order")
d.put(1, "replacement data")
assert len(d) == 55
if verbose:
print "before close" + '-' * 30
pprint(d.stat())
d.close()
del d
d = db.DB()
d.open(self.filename)
#d.set_get_returns_none(true)
if verbose:
print "after open" + '-' * 30
pprint(d.stat())
d.append("one more")
if verbose:
print "after append" + '-' * 30
pprint(d.stat())
rec = d.consume()
while rec:
if verbose:
print rec
rec = d.consume()
if verbose:
print "after consume loop" + '-' * 30
pprint(d.stat())
d.close()
#----------------------------------------------------------------------
def test_suite():
return unittest.makeSuite(SimpleQueueTestCase)
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')