lib-python.2.7.bsddb.test.test_sequence.py Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jython Show documentation
Show all versions of jython Show documentation
Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
import unittest
import os
from test_all import db, test_support, get_new_environment_path, get_new_database_path
class DBSequenceTest(unittest.TestCase):
import sys
if sys.version_info < (2, 4) :
def assertTrue(self, expr, msg=None):
self.failUnless(expr,msg=msg)
def setUp(self):
self.int_32_max = 0x100000000
self.homeDir = get_new_environment_path()
self.filename = "test"
self.dbenv = db.DBEnv()
self.dbenv.open(self.homeDir, db.DB_CREATE | db.DB_INIT_MPOOL, 0666)
self.d = db.DB(self.dbenv)
self.d.open(self.filename, db.DB_BTREE, db.DB_CREATE, 0666)
def tearDown(self):
if hasattr(self, 'seq'):
self.seq.close()
del self.seq
if hasattr(self, 'd'):
self.d.close()
del self.d
if hasattr(self, 'dbenv'):
self.dbenv.close()
del self.dbenv
test_support.rmtree(self.homeDir)
def test_get(self):
self.seq = db.DBSequence(self.d, flags=0)
start_value = 10 * self.int_32_max
self.assertEqual(0xA00000000, start_value)
self.assertEqual(None, self.seq.initial_value(start_value))
self.assertEqual(None, self.seq.open(key='id', txn=None, flags=db.DB_CREATE))
self.assertEqual(start_value, self.seq.get(5))
self.assertEqual(start_value + 5, self.seq.get())
def test_remove(self):
self.seq = db.DBSequence(self.d, flags=0)
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
self.assertEqual(None, self.seq.remove(txn=None, flags=0))
del self.seq
def test_get_key(self):
self.seq = db.DBSequence(self.d, flags=0)
key = 'foo'
self.assertEqual(None, self.seq.open(key=key, txn=None, flags=db.DB_CREATE))
self.assertEqual(key, self.seq.get_key())
def test_get_dbp(self):
self.seq = db.DBSequence(self.d, flags=0)
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
self.assertEqual(self.d, self.seq.get_dbp())
def test_cachesize(self):
self.seq = db.DBSequence(self.d, flags=0)
cashe_size = 10
self.assertEqual(None, self.seq.set_cachesize(cashe_size))
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
self.assertEqual(cashe_size, self.seq.get_cachesize())
def test_flags(self):
self.seq = db.DBSequence(self.d, flags=0)
flag = db.DB_SEQ_WRAP;
self.assertEqual(None, self.seq.set_flags(flag))
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
self.assertEqual(flag, self.seq.get_flags() & flag)
def test_range(self):
self.seq = db.DBSequence(self.d, flags=0)
seq_range = (10 * self.int_32_max, 11 * self.int_32_max - 1)
self.assertEqual(None, self.seq.set_range(seq_range))
self.seq.initial_value(seq_range[0])
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
self.assertEqual(seq_range, self.seq.get_range())
def test_stat(self):
self.seq = db.DBSequence(self.d, flags=0)
self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
stat = self.seq.stat()
for param in ('nowait', 'min', 'max', 'value', 'current',
'flags', 'cache_size', 'last_value', 'wait'):
self.assertTrue(param in stat, "parameter %s isn't in stat info" % param)
if db.version() >= (4,7) :
# This code checks a crash solved in Berkeley DB 4.7
def test_stat_crash(self) :
d=db.DB()
d.open(None,dbtype=db.DB_HASH,flags=db.DB_CREATE) # In RAM
seq = db.DBSequence(d, flags=0)
self.assertRaises(db.DBNotFoundError, seq.open,
key='id', txn=None, flags=0)
self.assertRaises(db.DBInvalidArgError, seq.stat)
d.close()
def test_64bits(self) :
# We don't use both extremes because they are problematic
value_plus=(1L<<63)-2
self.assertEqual(9223372036854775806L,value_plus)
value_minus=(-1L<<63)+1 # Two complement
self.assertEqual(-9223372036854775807L,value_minus)
self.seq = db.DBSequence(self.d, flags=0)
self.assertEqual(None, self.seq.initial_value(value_plus-1))
self.assertEqual(None, self.seq.open(key='id', txn=None,
flags=db.DB_CREATE))
self.assertEqual(value_plus-1, self.seq.get(1))
self.assertEqual(value_plus, self.seq.get(1))
self.seq.remove(txn=None, flags=0)
self.seq = db.DBSequence(self.d, flags=0)
self.assertEqual(None, self.seq.initial_value(value_minus))
self.assertEqual(None, self.seq.open(key='id', txn=None,
flags=db.DB_CREATE))
self.assertEqual(value_minus, self.seq.get(1))
self.assertEqual(value_minus+1, self.seq.get(1))
def test_multiple_close(self):
self.seq = db.DBSequence(self.d)
self.seq.close() # You can close a Sequence multiple times
self.seq.close()
self.seq.close()
def test_suite():
suite = unittest.TestSuite()
if db.version() >= (4,3):
suite.addTest(unittest.makeSuite(DBSequenceTest))
return suite
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')