cpython/Lib/bsddb/test/test_dbshelve.py

311 lines
8.2 KiB
Python

"""
TestCases for checking dbShelve objects.
"""
import sys, os, string
import tempfile, random
from pprint import pprint
from types import *
import unittest
from bsddb import db, dbshelve
from .test_all import verbose
#----------------------------------------------------------------------
# We want the objects to be comparable so we can test dbshelve.values
# later on.
class DataClass:
def __init__(self):
self.value = random.random()
def __repr__(self):
return "DataClass(%r)" % self.value
def __eq__(self, other):
value = self.value
if isinstance(other, DataClass):
other = other.value
return value == other
def __lt__(self, other):
value = self.value
if isinstance(other, DataClass):
other = other.value
return value < other
class DBShelveTestCase(unittest.TestCase):
def setUp(self):
self.filename = tempfile.mktemp()
self.do_open()
def tearDown(self):
self.do_close()
try:
os.remove(self.filename)
except os.error:
pass
def populateDB(self, d):
for x in string.letters:
d[('S' + x).encode("ascii")] = 10 * x # add a string
d[('I' + x).encode("ascii")] = ord(x) # add an integer
d[('L' + x).encode("ascii")] = [x] * 10 # add a list
inst = DataClass() # add an instance
inst.S = 10 * x
inst.I = ord(x)
inst.L = [x] * 10
d[('O' + x).encode("ascii")] = inst
# overridable in derived classes to affect how the shelf is created/opened
def do_open(self):
self.d = dbshelve.open(self.filename)
# and closed...
def do_close(self):
self.d.close()
def test01_basics(self):
if verbose:
print('\n', '-=' * 30)
print("Running %s.test01_basics..." % self.__class__.__name__)
self.populateDB(self.d)
self.d.sync()
self.do_close()
self.do_open()
d = self.d
l = len(d)
k = d.keys()
s = d.stat()
f = d.fd()
if verbose:
print("length:", l)
print("keys:", k)
print("stats:", s)
assert 0 == d.has_key(b'bad key')
assert 1 == d.has_key(b'IA')
assert 1 == d.has_key(b'OA')
d.delete(b'IA')
del d[b'OA']
assert 0 == d.has_key(b'IA')
assert 0 == d.has_key(b'OA')
assert len(d) == l-2
values = []
for key in d.keys():
value = d[key]
values.append(value)
if verbose:
print("%s: %s" % (key, value))
self.checkrec(key, value)
dbvalues = sorted(d.values(), key=lambda x: (str(type(x)), x))
assert len(dbvalues) == len(d.keys())
values.sort(key=lambda x: (str(type(x)), x))
assert values == dbvalues, "%r != %r" % (values, dbvalues)
items = d.items()
assert len(items) == len(values)
for key, value in items:
self.checkrec(key, value)
assert d.get(b'bad key') == None
assert d.get(b'bad key', None) == None
assert d.get(b'bad key', b'a string') == b'a string'
assert d.get(b'bad key', [1, 2, 3]) == [1, 2, 3]
d.set_get_returns_none(0)
self.assertRaises(db.DBNotFoundError, d.get, b'bad key')
d.set_get_returns_none(1)
d.put(b'new key', b'new data')
assert d.get(b'new key') == b'new data'
assert d[b'new key'] == b'new data'
def test02_cursors(self):
if verbose:
print('\n', '-=' * 30)
print("Running %s.test02_cursors..." % self.__class__.__name__)
self.populateDB(self.d)
d = self.d
count = 0
c = d.cursor()
rec = c.first()
while rec is not None:
count = count + 1
if verbose:
print(repr(rec))
key, value = rec
self.checkrec(key, value)
rec = c.next()
del c
assert count == len(d)
count = 0
c = d.cursor()
rec = c.last()
while rec is not None:
count = count + 1
if verbose:
print(rec)
key, value = rec
self.checkrec(key, value)
rec = c.prev()
assert count == len(d)
c.set(b'SS')
key, value = c.current()
self.checkrec(key, value)
del c
def checkrec(self, key, value):
x = key[1:]
if key[0:1] == b'S':
self.assertEquals(type(value), str)
self.assertEquals(value, 10 * x.decode("ascii"))
elif key[0:1] == b'I':
self.assertEquals(type(value), int)
self.assertEquals(value, ord(x))
elif key[0:1] == b'L':
self.assertEquals(type(value), list)
self.assertEquals(value, [x.decode("ascii")] * 10)
elif key[0:1] == b'O':
self.assertEquals(value.S, 10 * x.decode("ascii"))
self.assertEquals(value.I, ord(x))
self.assertEquals(value.L, [x.decode("ascii")] * 10)
else:
self.fail('Unknown key type, fix the test')
#----------------------------------------------------------------------
class BasicShelveTestCase(DBShelveTestCase):
def do_open(self):
self.d = dbshelve.DBShelf()
self.d.open(self.filename, self.dbtype, self.dbflags)
def do_close(self):
self.d.close()
class BTreeShelveTestCase(BasicShelveTestCase):
dbtype = db.DB_BTREE
dbflags = db.DB_CREATE
class HashShelveTestCase(BasicShelveTestCase):
dbtype = db.DB_HASH
dbflags = db.DB_CREATE
class ThreadBTreeShelveTestCase(BasicShelveTestCase):
dbtype = db.DB_BTREE
dbflags = db.DB_CREATE | db.DB_THREAD
class ThreadHashShelveTestCase(BasicShelveTestCase):
dbtype = db.DB_HASH
dbflags = db.DB_CREATE | db.DB_THREAD
#----------------------------------------------------------------------
class BasicEnvShelveTestCase(DBShelveTestCase):
def do_open(self):
self.homeDir = homeDir = os.path.join(
tempfile.gettempdir(), 'db_home')
try: os.mkdir(homeDir)
except os.error: pass
self.env = db.DBEnv()
self.env.open(homeDir, self.envflags | db.DB_INIT_MPOOL | db.DB_CREATE)
self.filename = os.path.split(self.filename)[1]
self.d = dbshelve.DBShelf(self.env)
self.d.open(self.filename, self.dbtype, self.dbflags)
def do_close(self):
self.d.close()
self.env.close()
def tearDown(self):
self.do_close()
import glob
files = glob.glob(os.path.join(self.homeDir, '*'))
for file in files:
os.remove(file)
class EnvBTreeShelveTestCase(BasicEnvShelveTestCase):
envflags = 0
dbtype = db.DB_BTREE
dbflags = db.DB_CREATE
class EnvHashShelveTestCase(BasicEnvShelveTestCase):
envflags = 0
dbtype = db.DB_HASH
dbflags = db.DB_CREATE
class EnvThreadBTreeShelveTestCase(BasicEnvShelveTestCase):
envflags = db.DB_THREAD
dbtype = db.DB_BTREE
dbflags = db.DB_CREATE | db.DB_THREAD
class EnvThreadHashShelveTestCase(BasicEnvShelveTestCase):
envflags = db.DB_THREAD
dbtype = db.DB_HASH
dbflags = db.DB_CREATE | db.DB_THREAD
#----------------------------------------------------------------------
# TODO: Add test cases for a DBShelf in a RECNO DB.
#----------------------------------------------------------------------
def test_suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(DBShelveTestCase))
suite.addTest(unittest.makeSuite(BTreeShelveTestCase))
suite.addTest(unittest.makeSuite(HashShelveTestCase))
suite.addTest(unittest.makeSuite(ThreadBTreeShelveTestCase))
suite.addTest(unittest.makeSuite(ThreadHashShelveTestCase))
suite.addTest(unittest.makeSuite(EnvBTreeShelveTestCase))
suite.addTest(unittest.makeSuite(EnvHashShelveTestCase))
suite.addTest(unittest.makeSuite(EnvThreadBTreeShelveTestCase))
suite.addTest(unittest.makeSuite(EnvThreadHashShelveTestCase))
return suite
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')