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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙfrom _compat_pickle import (IMPORT_MAPPING, REVERSE_IMPORT_MAPPING, NAME_MAPPING, REVERSE_NAME_MAPPING) import builtins import pickle import io import collections import struct import sys import warnings import weakref import doctest import unittest from test import support from test.pickletester import AbstractHookTests from test.pickletester import AbstractUnpickleTests from test.pickletester import AbstractPickleTests from test.pickletester import AbstractPickleModuleTests from test.pickletester import AbstractPersistentPicklerTests from test.pickletester import AbstractIdentityPersistentPicklerTests from test.pickletester import AbstractPicklerUnpicklerObjectTests from test.pickletester import AbstractDispatchTableTests from test.pickletester import AbstractCustomPicklerClass from test.pickletester import BigmemPickleTests try: import _pickle has_c_implementation = True except ImportError: has_c_implementation = False class PyPickleTests(AbstractPickleModuleTests, unittest.TestCase): dump = staticmethod(pickle._dump) dumps = staticmethod(pickle._dumps) load = staticmethod(pickle._load) loads = staticmethod(pickle._loads) Pickler = pickle._Pickler Unpickler = pickle._Unpickler class PyUnpicklerTests(AbstractUnpickleTests, unittest.TestCase): unpickler = pickle._Unpickler bad_stack_errors = (IndexError,) truncated_errors = (pickle.UnpicklingError, EOFError, AttributeError, ValueError, struct.error, IndexError, ImportError) def loads(self, buf, **kwds): f = io.BytesIO(buf) u = self.unpickler(f, **kwds) return u.load() class PyPicklerTests(AbstractPickleTests, unittest.TestCase): pickler = pickle._Pickler unpickler = pickle._Unpickler def dumps(self, arg, proto=None, **kwargs): f = io.BytesIO() p = self.pickler(f, proto, **kwargs) p.dump(arg) f.seek(0) return bytes(f.read()) def loads(self, buf, **kwds): f = io.BytesIO(buf) u = self.unpickler(f, **kwds) return u.load() class InMemoryPickleTests(AbstractPickleTests, AbstractUnpickleTests, BigmemPickleTests, unittest.TestCase): bad_stack_errors = (pickle.UnpicklingError, IndexError) truncated_errors = (pickle.UnpicklingError, EOFError, AttributeError, ValueError, struct.error, IndexError, ImportError) def dumps(self, arg, protocol=None, **kwargs): return pickle.dumps(arg, protocol, **kwargs) def loads(self, buf, **kwds): return pickle.loads(buf, **kwds) test_framed_write_sizes_with_delayed_writer = None class PersistentPicklerUnpicklerMixin(object): def dumps(self, arg, proto=None): class PersPickler(self.pickler): def persistent_id(subself, obj): return self.persistent_id(obj) f = io.BytesIO() p = PersPickler(f, proto) p.dump(arg) return f.getvalue() def loads(self, buf, **kwds): class PersUnpickler(self.unpickler): def persistent_load(subself, obj): return self.persistent_load(obj) f = io.BytesIO(buf) u = PersUnpickler(f, **kwds) return u.load() class PyPersPicklerTests(AbstractPersistentPicklerTests, PersistentPicklerUnpicklerMixin, unittest.TestCase): pickler = pickle._Pickler unpickler = pickle._Unpickler class PyIdPersPicklerTests(AbstractIdentityPersistentPicklerTests, PersistentPicklerUnpicklerMixin, unittest.TestCase): pickler = pickle._Pickler unpickler = pickle._Unpickler @support.cpython_only def test_pickler_reference_cycle(self): def check(Pickler): for proto in range(pickle.HIGHEST_PROTOCOL + 1): f = io.BytesIO() pickler = Pickler(f, proto) pickler.dump('abc') self.assertEqual(self.loads(f.getvalue()), 'abc') pickler = Pickler(io.BytesIO()) self.assertEqual(pickler.persistent_id('def'), 'def') r = weakref.ref(pickler) del pickler self.assertIsNone(r()) class PersPickler(self.pickler): def persistent_id(subself, obj): return obj check(PersPickler) class PersPickler(self.pickler): @classmethod def persistent_id(cls, obj): return obj check(PersPickler) class PersPickler(self.pickler): @staticmethod def persistent_id(obj): return obj check(PersPickler) @support.cpython_only def test_unpickler_reference_cycle(self): def check(Unpickler): for proto in range(pickle.HIGHEST_PROTOCOL + 1): unpickler = Unpickler(io.BytesIO(self.dumps('abc', proto))) self.assertEqual(unpickler.load(), 'abc') unpickler = Unpickler(io.BytesIO()) self.assertEqual(unpickler.persistent_load('def'), 'def') r = weakref.ref(unpickler) del unpickler self.assertIsNone(r()) class PersUnpickler(self.unpickler): def persistent_load(subself, pid): return pid check(PersUnpickler) class PersUnpickler(self.unpickler): @classmethod def persistent_load(cls, pid): return pid check(PersUnpickler) class PersUnpickler(self.unpickler): @staticmethod def persistent_load(pid): return pid check(PersUnpickler) class PyPicklerUnpicklerObjectTests(AbstractPicklerUnpicklerObjectTests, unittest.TestCase): pickler_class = pickle._Pickler unpickler_class = pickle._Unpickler class PyDispatchTableTests(AbstractDispatchTableTests, unittest.TestCase): pickler_class = pickle._Pickler def get_dispatch_table(self): return pickle.dispatch_table.copy() class PyChainDispatchTableTests(AbstractDispatchTableTests, unittest.TestCase): pickler_class = pickle._Pickler def get_dispatch_table(self): return collections.ChainMap({}, pickle.dispatch_table) class PyPicklerHookTests(AbstractHookTests, unittest.TestCase): class CustomPyPicklerClass(pickle._Pickler, AbstractCustomPicklerClass): pass pickler_class = CustomPyPicklerClass if has_c_implementation: class CPickleTests(AbstractPickleModuleTests, unittest.TestCase): from _pickle import dump, dumps, load, loads, Pickler, Unpickler class CUnpicklerTests(PyUnpicklerTests): unpickler = _pickle.Unpickler bad_stack_errors = (pickle.UnpicklingError,) truncated_errors = (pickle.UnpicklingError,) class CPicklerTests(PyPicklerTests): pickler = _pickle.Pickler unpickler = _pickle.Unpickler class CPersPicklerTests(PyPersPicklerTests): pickler = _pickle.Pickler unpickler = _pickle.Unpickler class CIdPersPicklerTests(PyIdPersPicklerTests): pickler = _pickle.Pickler unpickler = _pickle.Unpickler class CDumpPickle_LoadPickle(PyPicklerTests): pickler = _pickle.Pickler unpickler = pickle._Unpickler class DumpPickle_CLoadPickle(PyPicklerTests): pickler = pickle._Pickler unpickler = _pickle.Unpickler class CPicklerUnpicklerObjectTests(AbstractPicklerUnpicklerObjectTests, unittest.TestCase): pickler_class = _pickle.Pickler unpickler_class = _pickle.Unpickler def test_issue18339(self): unpickler = self.unpickler_class(io.BytesIO()) with self.assertRaises(TypeError): unpickler.memo = object # used to cause a segfault with self.assertRaises(ValueError): unpickler.memo = {-1: None} unpickler.memo = {1: None} class CDispatchTableTests(AbstractDispatchTableTests, unittest.TestCase): pickler_class = pickle.Pickler def get_dispatch_table(self): return pickle.dispatch_table.copy() class CChainDispatchTableTests(AbstractDispatchTableTests, unittest.TestCase): pickler_class = pickle.Pickler def get_dispatch_table(self): return collections.ChainMap({}, pickle.dispatch_table) class CPicklerHookTests(AbstractHookTests, unittest.TestCase): class CustomCPicklerClass(_pickle.Pickler, AbstractCustomPicklerClass): pass pickler_class = CustomCPicklerClass @support.cpython_only class SizeofTests(unittest.TestCase): check_sizeof = support.check_sizeof def test_pickler(self): basesize = support.calcobjsize('7P2n3i2n3i2P') p = _pickle.Pickler(io.BytesIO()) self.assertEqual(object.__sizeof__(p), basesize) MT_size = struct.calcsize('3nP0n') ME_size = struct.calcsize('Pn0P') check = self.check_sizeof check(p, basesize + MT_size + 8 * ME_size + # Minimal memo table size. sys.getsizeof(b'x'*4096)) # Minimal write buffer size. for i in range(6): p.dump(chr(i)) check(p, basesize + MT_size + 32 * ME_size + # Size of memo table required to # save references to 6 objects. 0) # Write buffer is cleared after every dump(). def test_unpickler(self): basesize = support.calcobjsize('2P2n2P 2P2n2i5P 2P3n8P2n2i') unpickler = _pickle.Unpickler P = struct.calcsize('P') # Size of memo table entry. n = struct.calcsize('n') # Size of mark table entry. check = self.check_sizeof for encoding in 'ASCII', 'UTF-16', 'latin-1': for errors in 'strict', 'replace': u = unpickler(io.BytesIO(), encoding=encoding, errors=errors) self.assertEqual(object.__sizeof__(u), basesize) check(u, basesize + 32 * P + # Minimal memo table size. len(encoding) + 1 + len(errors) + 1) stdsize = basesize + len('ASCII') + 1 + len('strict') + 1 def check_unpickler(data, memo_size, marks_size): dump = pickle.dumps(data) u = unpickler(io.BytesIO(dump), encoding='ASCII', errors='strict') u.load() check(u, stdsize + memo_size * P + marks_size * n) check_unpickler(0, 32, 0) # 20 is minimal non-empty mark stack size. check_unpickler([0] * 100, 32, 20) # 128 is memo table size required to save references to 100 objects. check_unpickler([chr(i) for i in range(100)], 128, 20) def recurse(deep): data = 0 for i in range(deep): data = [data, data] return data check_unpickler(recurse(0), 32, 0) check_unpickler(recurse(1), 32, 20) check_unpickler(recurse(20), 32, 20) check_unpickler(recurse(50), 64, 60) check_unpickler(recurse(100), 128, 140) u = unpickler(io.BytesIO(pickle.dumps('a', 0)), encoding='ASCII', errors='strict') u.load() check(u, stdsize + 32 * P + 2 + 1) ALT_IMPORT_MAPPING = { ('_elementtree', 'xml.etree.ElementTree'), ('cPickle', 'pickle'), ('StringIO', 'io'), ('cStringIO', 'io'), } ALT_NAME_MAPPING = { ('__builtin__', 'basestring', 'builtins', 'str'), ('exceptions', 'StandardError', 'builtins', 'Exception'), ('UserDict', 'UserDict', 'collections', 'UserDict'), ('socket', '_socketobject', 'socket', 'SocketType'), } def mapping(module, name): if (module, name) in NAME_MAPPING: module, name = NAME_MAPPING[(module, name)] elif module in IMPORT_MAPPING: module = IMPORT_MAPPING[module] return module, name def reverse_mapping(module, name): if (module, name) in REVERSE_NAME_MAPPING: module, name = REVERSE_NAME_MAPPING[(module, name)] elif module in REVERSE_IMPORT_MAPPING: module = REVERSE_IMPORT_MAPPING[module] return module, name def getmodule(module): try: return sys.modules[module] except KeyError: try: with warnings.catch_warnings(): action = 'always' if support.verbose else 'ignore' warnings.simplefilter(action, DeprecationWarning) __import__(module) except AttributeError as exc: if support.verbose: print("Can't import module %r: %s" % (module, exc)) raise ImportError except ImportError as exc: if support.verbose: print(exc) raise return sys.modules[module] def getattribute(module, name): obj = getmodule(module) for n in name.split('.'): obj = getattr(obj, n) return obj def get_exceptions(mod): for name in dir(mod): attr = getattr(mod, name) if isinstance(attr, type) and issubclass(attr, BaseException): yield name, attr class CompatPickleTests(unittest.TestCase): def test_import(self): modules = set(IMPORT_MAPPING.values()) modules |= set(REVERSE_IMPORT_MAPPING) modules |= {module for module, name in REVERSE_NAME_MAPPING} modules |= {module for module, name in NAME_MAPPING.values()} for module in modules: try: getmodule(module) except ImportError: pass def test_import_mapping(self): for module3, module2 in REVERSE_IMPORT_MAPPING.items(): with self.subTest((module3, module2)): try: getmodule(module3) except ImportError: pass if module3[:1] != '_': self.assertIn(module2, IMPORT_MAPPING) self.assertEqual(IMPORT_MAPPING[module2], module3) def test_name_mapping(self): for (module3, name3), (module2, name2) in REVERSE_NAME_MAPPING.items(): with self.subTest(((module3, name3), (module2, name2))): if (module2, name2) == ('exceptions', 'OSError'): attr = getattribute(module3, name3) self.assertTrue(issubclass(attr, OSError)) elif (module2, name2) == ('exceptions', 'ImportError'): attr = getattribute(module3, name3) self.assertTrue(issubclass(attr, ImportError)) else: module, name = mapping(module2, name2) if module3[:1] != '_': self.assertEqual((module, name), (module3, name3)) try: attr = getattribute(module3, name3) except ImportError: pass else: self.assertEqual(getattribute(module, name), attr) def test_reverse_import_mapping(self): for module2, module3 in IMPORT_MAPPING.items(): with self.subTest((module2, module3)): try: getmodule(module3) except ImportError as exc: if support.verbose: print(exc) if ((module2, module3) not in ALT_IMPORT_MAPPING and REVERSE_IMPORT_MAPPING.get(module3, None) != module2): for (m3, n3), (m2, n2) in REVERSE_NAME_MAPPING.items(): if (module3, module2) == (m3, m2): break else: self.fail('No reverse mapping from %r to %r' % (module3, module2)) module = REVERSE_IMPORT_MAPPING.get(module3, module3) module = IMPORT_MAPPING.get(module, module) self.assertEqual(module, module3) def test_reverse_name_mapping(self): for (module2, name2), (module3, name3) in NAME_MAPPING.items(): with self.subTest(((module2, name2), (module3, name3))): try: attr = getattribute(module3, name3) except ImportError: pass module, name = reverse_mapping(module3, name3) if (module2, name2, module3, name3) not in ALT_NAME_MAPPING: self.assertEqual((module, name), (module2, name2)) module, name = mapping(module, name) self.assertEqual((module, name), (module3, name3)) def test_exceptions(self): self.assertEqual(mapping('exceptions', 'StandardError'), ('builtins', 'Exception')) self.assertEqual(mapping('exceptions', 'Exception'), ('builtins', 'Exception')) self.assertEqual(reverse_mapping('builtins', 'Exception'), ('exceptions', 'Exception')) self.assertEqual(mapping('exceptions', 'OSError'), ('builtins', 'OSError')) self.assertEqual(reverse_mapping('builtins', 'OSError'), ('exceptions', 'OSError')) for name, exc in get_exceptions(builtins): with self.subTest(name): if exc in (BlockingIOError, ResourceWarning, StopAsyncIteration, RecursionError): continue if exc is not OSError and issubclass(exc, OSError): self.assertEqual(reverse_mapping('builtins', name), ('exceptions', 'OSError')) elif exc is not ImportError and issubclass(exc, ImportError): self.assertEqual(reverse_mapping('builtins', name), ('exceptions', 'ImportError')) self.assertEqual(mapping('exceptions', name), ('exceptions', name)) else: self.assertEqual(reverse_mapping('builtins', name), ('exceptions', name)) self.assertEqual(mapping('exceptions', name), ('builtins', name)) def test_multiprocessing_exceptions(self): module = support.import_module('multiprocessing.context') for name, exc in get_exceptions(module): with self.subTest(name): self.assertEqual(reverse_mapping('multiprocessing.context', name), ('multiprocessing', name)) self.assertEqual(mapping('multiprocessing', name), ('multiprocessing.context', name)) def load_tests(loader, tests, pattern): tests.addTest(doctest.DocTestSuite()) return tests if __name__ == "__main__": unittest.main()