/usr/share/pyshared/ZODB/tests/testSerialize.py is in python-zodb 1:3.9.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2004 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Tests of the serializer."""
import cPickle
import cStringIO as StringIO
import sys
import unittest
from ZODB import serialize
class ClassWithNewargs(int):
def __new__(cls, value):
return int.__new__(cls, value)
def __getnewargs__(self):
return int(self),
class ClassWithoutNewargs(object):
def __init__(self, value):
self.value = value
def make_pickle(ob):
sio = StringIO.StringIO()
p = cPickle.Pickler(sio, 1)
p.dump(ob)
return sio.getvalue()
def test_factory(conn, module_name, name):
return globals()[name]
class SerializerTestCase(unittest.TestCase):
# old format: (module, name), None
old_style_without_newargs = make_pickle(
((__name__, "ClassWithoutNewargs"), None))
# old format: (module, name), argtuple
old_style_with_newargs = make_pickle(
((__name__, "ClassWithNewargs"), (1,)))
# new format: klass
new_style_without_newargs = make_pickle(
ClassWithoutNewargs)
# new format: klass, argtuple
new_style_with_newargs = make_pickle(
(ClassWithNewargs, (1,)))
def test_getClassName(self):
r = serialize.ObjectReader(factory=test_factory)
eq = self.assertEqual
eq(r.getClassName(self.old_style_with_newargs),
__name__ + ".ClassWithNewargs")
eq(r.getClassName(self.new_style_with_newargs),
__name__ + ".ClassWithNewargs")
eq(r.getClassName(self.old_style_without_newargs),
__name__ + ".ClassWithoutNewargs")
eq(r.getClassName(self.new_style_without_newargs),
__name__ + ".ClassWithoutNewargs")
def test_getGhost(self):
# Use a TestObjectReader since we need _get_class() to be
# implemented; otherwise this is just a BaseObjectReader.
class TestObjectReader(serialize.ObjectReader):
# A production object reader would optimize this, but we
# don't need to in a test
def _get_class(self, module, name):
__import__(module)
return getattr(sys.modules[module], name)
r = TestObjectReader(factory=test_factory)
g = r.getGhost(self.old_style_with_newargs)
self.assert_(isinstance(g, ClassWithNewargs))
self.assertEqual(g, 1)
g = r.getGhost(self.old_style_without_newargs)
self.assert_(isinstance(g, ClassWithoutNewargs))
g = r.getGhost(self.new_style_with_newargs)
self.assert_(isinstance(g, ClassWithNewargs))
g = r.getGhost(self.new_style_without_newargs)
self.assert_(isinstance(g, ClassWithoutNewargs))
def test_myhasattr(self):
class OldStyle:
bar = "bar"
def __getattr__(self, name):
if name == "error":
raise ValueError("whee!")
else:
raise AttributeError(name)
class NewStyle(object):
bar = "bar"
def _raise(self):
raise ValueError("whee!")
error = property(_raise)
self.assertRaises(ValueError,
serialize.myhasattr, OldStyle(), "error")
self.assertRaises(ValueError,
serialize.myhasattr, NewStyle(), "error")
self.assert_(serialize.myhasattr(OldStyle(), "bar"))
self.assert_(serialize.myhasattr(NewStyle(), "bar"))
self.assert_(not serialize.myhasattr(OldStyle(), "rat"))
self.assert_(not serialize.myhasattr(NewStyle(), "rat"))
def test_suite():
from zope.testing import doctest
suite = unittest.makeSuite(SerializerTestCase)
suite.addTest(doctest.DocTestSuite("ZODB.serialize"))
return suite
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