You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1320 lines
41 KiB
1320 lines
41 KiB
import unittest
|
|
import pickle
|
|
import cPickle
|
|
import StringIO
|
|
import cStringIO
|
|
import pickletools
|
|
import copy_reg
|
|
|
|
from test.test_support import TestFailed, verbose, have_unicode, TESTFN
|
|
try:
|
|
from test.test_support import _2G, _1M, precisionbigmemtest
|
|
except ImportError:
|
|
# this import might fail when run on older Python versions by test_xpickle
|
|
_2G = _1M = 0
|
|
def precisionbigmemtest(*args, **kwargs):
|
|
return lambda self: None
|
|
|
|
# Tests that try a number of pickle protocols should have a
|
|
# for proto in protocols:
|
|
# kind of outer loop.
|
|
assert pickle.HIGHEST_PROTOCOL == cPickle.HIGHEST_PROTOCOL == 2
|
|
protocols = range(pickle.HIGHEST_PROTOCOL + 1)
|
|
|
|
# Copy of test.test_support.run_with_locale. This is needed to support Python
|
|
# 2.4, which didn't include it. This is all to support test_xpickle, which
|
|
# bounces pickled objects through older Python versions to test backwards
|
|
# compatibility.
|
|
def run_with_locale(catstr, *locales):
|
|
def decorator(func):
|
|
def inner(*args, **kwds):
|
|
try:
|
|
import locale
|
|
category = getattr(locale, catstr)
|
|
orig_locale = locale.setlocale(category)
|
|
except AttributeError:
|
|
# if the test author gives us an invalid category string
|
|
raise
|
|
except:
|
|
# cannot retrieve original locale, so do nothing
|
|
locale = orig_locale = None
|
|
else:
|
|
for loc in locales:
|
|
try:
|
|
locale.setlocale(category, loc)
|
|
break
|
|
except:
|
|
pass
|
|
|
|
# now run the function, resetting the locale on exceptions
|
|
try:
|
|
return func(*args, **kwds)
|
|
finally:
|
|
if locale and orig_locale:
|
|
locale.setlocale(category, orig_locale)
|
|
inner.func_name = func.func_name
|
|
inner.__doc__ = func.__doc__
|
|
return inner
|
|
return decorator
|
|
|
|
|
|
# Return True if opcode code appears in the pickle, else False.
|
|
def opcode_in_pickle(code, pickle):
|
|
for op, dummy, dummy in pickletools.genops(pickle):
|
|
if op.code == code:
|
|
return True
|
|
return False
|
|
|
|
# Return the number of times opcode code appears in pickle.
|
|
def count_opcode(code, pickle):
|
|
n = 0
|
|
for op, dummy, dummy in pickletools.genops(pickle):
|
|
if op.code == code:
|
|
n += 1
|
|
return n
|
|
|
|
# We can't very well test the extension registry without putting known stuff
|
|
# in it, but we have to be careful to restore its original state. Code
|
|
# should do this:
|
|
#
|
|
# e = ExtensionSaver(extension_code)
|
|
# try:
|
|
# fiddle w/ the extension registry's stuff for extension_code
|
|
# finally:
|
|
# e.restore()
|
|
|
|
class ExtensionSaver:
|
|
# Remember current registration for code (if any), and remove it (if
|
|
# there is one).
|
|
def __init__(self, code):
|
|
self.code = code
|
|
if code in copy_reg._inverted_registry:
|
|
self.pair = copy_reg._inverted_registry[code]
|
|
copy_reg.remove_extension(self.pair[0], self.pair[1], code)
|
|
else:
|
|
self.pair = None
|
|
|
|
# Restore previous registration for code.
|
|
def restore(self):
|
|
code = self.code
|
|
curpair = copy_reg._inverted_registry.get(code)
|
|
if curpair is not None:
|
|
copy_reg.remove_extension(curpair[0], curpair[1], code)
|
|
pair = self.pair
|
|
if pair is not None:
|
|
copy_reg.add_extension(pair[0], pair[1], code)
|
|
|
|
class C:
|
|
def __cmp__(self, other):
|
|
return cmp(self.__dict__, other.__dict__)
|
|
|
|
import __main__
|
|
__main__.C = C
|
|
C.__module__ = "__main__"
|
|
|
|
class myint(int):
|
|
def __init__(self, x):
|
|
self.str = str(x)
|
|
|
|
class initarg(C):
|
|
|
|
def __init__(self, a, b):
|
|
self.a = a
|
|
self.b = b
|
|
|
|
def __getinitargs__(self):
|
|
return self.a, self.b
|
|
|
|
class metaclass(type):
|
|
pass
|
|
|
|
class use_metaclass(object):
|
|
__metaclass__ = metaclass
|
|
|
|
class pickling_metaclass(type):
|
|
def __eq__(self, other):
|
|
return (type(self) == type(other) and
|
|
self.reduce_args == other.reduce_args)
|
|
|
|
def __reduce__(self):
|
|
return (create_dynamic_class, self.reduce_args)
|
|
|
|
__hash__ = None
|
|
|
|
def create_dynamic_class(name, bases):
|
|
result = pickling_metaclass(name, bases, dict())
|
|
result.reduce_args = (name, bases)
|
|
return result
|
|
|
|
# DATA0 .. DATA2 are the pickles we expect under the various protocols, for
|
|
# the object returned by create_data().
|
|
|
|
# break into multiple strings to avoid confusing font-lock-mode
|
|
DATA0 = """(lp1
|
|
I0
|
|
aL1L
|
|
aF2
|
|
ac__builtin__
|
|
complex
|
|
p2
|
|
""" + \
|
|
"""(F3
|
|
F0
|
|
tRp3
|
|
aI1
|
|
aI-1
|
|
aI255
|
|
aI-255
|
|
aI-256
|
|
aI65535
|
|
aI-65535
|
|
aI-65536
|
|
aI2147483647
|
|
aI-2147483647
|
|
aI-2147483648
|
|
a""" + \
|
|
"""(S'abc'
|
|
p4
|
|
g4
|
|
""" + \
|
|
"""(i__main__
|
|
C
|
|
p5
|
|
""" + \
|
|
"""(dp6
|
|
S'foo'
|
|
p7
|
|
I1
|
|
sS'bar'
|
|
p8
|
|
I2
|
|
sbg5
|
|
tp9
|
|
ag9
|
|
aI5
|
|
a.
|
|
"""
|
|
|
|
# Disassembly of DATA0.
|
|
DATA0_DIS = """\
|
|
0: ( MARK
|
|
1: l LIST (MARK at 0)
|
|
2: p PUT 1
|
|
5: I INT 0
|
|
8: a APPEND
|
|
9: L LONG 1L
|
|
13: a APPEND
|
|
14: F FLOAT 2.0
|
|
17: a APPEND
|
|
18: c GLOBAL '__builtin__ complex'
|
|
39: p PUT 2
|
|
42: ( MARK
|
|
43: F FLOAT 3.0
|
|
46: F FLOAT 0.0
|
|
49: t TUPLE (MARK at 42)
|
|
50: R REDUCE
|
|
51: p PUT 3
|
|
54: a APPEND
|
|
55: I INT 1
|
|
58: a APPEND
|
|
59: I INT -1
|
|
63: a APPEND
|
|
64: I INT 255
|
|
69: a APPEND
|
|
70: I INT -255
|
|
76: a APPEND
|
|
77: I INT -256
|
|
83: a APPEND
|
|
84: I INT 65535
|
|
91: a APPEND
|
|
92: I INT -65535
|
|
100: a APPEND
|
|
101: I INT -65536
|
|
109: a APPEND
|
|
110: I INT 2147483647
|
|
122: a APPEND
|
|
123: I INT -2147483647
|
|
136: a APPEND
|
|
137: I INT -2147483648
|
|
150: a APPEND
|
|
151: ( MARK
|
|
152: S STRING 'abc'
|
|
159: p PUT 4
|
|
162: g GET 4
|
|
165: ( MARK
|
|
166: i INST '__main__ C' (MARK at 165)
|
|
178: p PUT 5
|
|
181: ( MARK
|
|
182: d DICT (MARK at 181)
|
|
183: p PUT 6
|
|
186: S STRING 'foo'
|
|
193: p PUT 7
|
|
196: I INT 1
|
|
199: s SETITEM
|
|
200: S STRING 'bar'
|
|
207: p PUT 8
|
|
210: I INT 2
|
|
213: s SETITEM
|
|
214: b BUILD
|
|
215: g GET 5
|
|
218: t TUPLE (MARK at 151)
|
|
219: p PUT 9
|
|
222: a APPEND
|
|
223: g GET 9
|
|
226: a APPEND
|
|
227: I INT 5
|
|
230: a APPEND
|
|
231: . STOP
|
|
highest protocol among opcodes = 0
|
|
"""
|
|
|
|
DATA1 = (']q\x01(K\x00L1L\nG@\x00\x00\x00\x00\x00\x00\x00'
|
|
'c__builtin__\ncomplex\nq\x02(G@\x08\x00\x00\x00\x00\x00'
|
|
'\x00G\x00\x00\x00\x00\x00\x00\x00\x00tRq\x03K\x01J\xff\xff'
|
|
'\xff\xffK\xffJ\x01\xff\xff\xffJ\x00\xff\xff\xffM\xff\xff'
|
|
'J\x01\x00\xff\xffJ\x00\x00\xff\xffJ\xff\xff\xff\x7fJ\x01\x00'
|
|
'\x00\x80J\x00\x00\x00\x80(U\x03abcq\x04h\x04(c__main__\n'
|
|
'C\nq\x05oq\x06}q\x07(U\x03fooq\x08K\x01U\x03barq\tK\x02ubh'
|
|
'\x06tq\nh\nK\x05e.'
|
|
)
|
|
|
|
# Disassembly of DATA1.
|
|
DATA1_DIS = """\
|
|
0: ] EMPTY_LIST
|
|
1: q BINPUT 1
|
|
3: ( MARK
|
|
4: K BININT1 0
|
|
6: L LONG 1L
|
|
10: G BINFLOAT 2.0
|
|
19: c GLOBAL '__builtin__ complex'
|
|
40: q BINPUT 2
|
|
42: ( MARK
|
|
43: G BINFLOAT 3.0
|
|
52: G BINFLOAT 0.0
|
|
61: t TUPLE (MARK at 42)
|
|
62: R REDUCE
|
|
63: q BINPUT 3
|
|
65: K BININT1 1
|
|
67: J BININT -1
|
|
72: K BININT1 255
|
|
74: J BININT -255
|
|
79: J BININT -256
|
|
84: M BININT2 65535
|
|
87: J BININT -65535
|
|
92: J BININT -65536
|
|
97: J BININT 2147483647
|
|
102: J BININT -2147483647
|
|
107: J BININT -2147483648
|
|
112: ( MARK
|
|
113: U SHORT_BINSTRING 'abc'
|
|
118: q BINPUT 4
|
|
120: h BINGET 4
|
|
122: ( MARK
|
|
123: c GLOBAL '__main__ C'
|
|
135: q BINPUT 5
|
|
137: o OBJ (MARK at 122)
|
|
138: q BINPUT 6
|
|
140: } EMPTY_DICT
|
|
141: q BINPUT 7
|
|
143: ( MARK
|
|
144: U SHORT_BINSTRING 'foo'
|
|
149: q BINPUT 8
|
|
151: K BININT1 1
|
|
153: U SHORT_BINSTRING 'bar'
|
|
158: q BINPUT 9
|
|
160: K BININT1 2
|
|
162: u SETITEMS (MARK at 143)
|
|
163: b BUILD
|
|
164: h BINGET 6
|
|
166: t TUPLE (MARK at 112)
|
|
167: q BINPUT 10
|
|
169: h BINGET 10
|
|
171: K BININT1 5
|
|
173: e APPENDS (MARK at 3)
|
|
174: . STOP
|
|
highest protocol among opcodes = 1
|
|
"""
|
|
|
|
DATA2 = ('\x80\x02]q\x01(K\x00\x8a\x01\x01G@\x00\x00\x00\x00\x00\x00\x00'
|
|
'c__builtin__\ncomplex\nq\x02G@\x08\x00\x00\x00\x00\x00\x00G\x00'
|
|
'\x00\x00\x00\x00\x00\x00\x00\x86Rq\x03K\x01J\xff\xff\xff\xffK'
|
|
'\xffJ\x01\xff\xff\xffJ\x00\xff\xff\xffM\xff\xffJ\x01\x00\xff\xff'
|
|
'J\x00\x00\xff\xffJ\xff\xff\xff\x7fJ\x01\x00\x00\x80J\x00\x00\x00'
|
|
'\x80(U\x03abcq\x04h\x04(c__main__\nC\nq\x05oq\x06}q\x07(U\x03foo'
|
|
'q\x08K\x01U\x03barq\tK\x02ubh\x06tq\nh\nK\x05e.')
|
|
|
|
# Disassembly of DATA2.
|
|
DATA2_DIS = """\
|
|
0: \x80 PROTO 2
|
|
2: ] EMPTY_LIST
|
|
3: q BINPUT 1
|
|
5: ( MARK
|
|
6: K BININT1 0
|
|
8: \x8a LONG1 1L
|
|
11: G BINFLOAT 2.0
|
|
20: c GLOBAL '__builtin__ complex'
|
|
41: q BINPUT 2
|
|
43: G BINFLOAT 3.0
|
|
52: G BINFLOAT 0.0
|
|
61: \x86 TUPLE2
|
|
62: R REDUCE
|
|
63: q BINPUT 3
|
|
65: K BININT1 1
|
|
67: J BININT -1
|
|
72: K BININT1 255
|
|
74: J BININT -255
|
|
79: J BININT -256
|
|
84: M BININT2 65535
|
|
87: J BININT -65535
|
|
92: J BININT -65536
|
|
97: J BININT 2147483647
|
|
102: J BININT -2147483647
|
|
107: J BININT -2147483648
|
|
112: ( MARK
|
|
113: U SHORT_BINSTRING 'abc'
|
|
118: q BINPUT 4
|
|
120: h BINGET 4
|
|
122: ( MARK
|
|
123: c GLOBAL '__main__ C'
|
|
135: q BINPUT 5
|
|
137: o OBJ (MARK at 122)
|
|
138: q BINPUT 6
|
|
140: } EMPTY_DICT
|
|
141: q BINPUT 7
|
|
143: ( MARK
|
|
144: U SHORT_BINSTRING 'foo'
|
|
149: q BINPUT 8
|
|
151: K BININT1 1
|
|
153: U SHORT_BINSTRING 'bar'
|
|
158: q BINPUT 9
|
|
160: K BININT1 2
|
|
162: u SETITEMS (MARK at 143)
|
|
163: b BUILD
|
|
164: h BINGET 6
|
|
166: t TUPLE (MARK at 112)
|
|
167: q BINPUT 10
|
|
169: h BINGET 10
|
|
171: K BININT1 5
|
|
173: e APPENDS (MARK at 5)
|
|
174: . STOP
|
|
highest protocol among opcodes = 2
|
|
"""
|
|
|
|
def create_data():
|
|
c = C()
|
|
c.foo = 1
|
|
c.bar = 2
|
|
x = [0, 1L, 2.0, 3.0+0j]
|
|
# Append some integer test cases at cPickle.c's internal size
|
|
# cutoffs.
|
|
uint1max = 0xff
|
|
uint2max = 0xffff
|
|
int4max = 0x7fffffff
|
|
x.extend([1, -1,
|
|
uint1max, -uint1max, -uint1max-1,
|
|
uint2max, -uint2max, -uint2max-1,
|
|
int4max, -int4max, -int4max-1])
|
|
y = ('abc', 'abc', c, c)
|
|
x.append(y)
|
|
x.append(y)
|
|
x.append(5)
|
|
return x
|
|
|
|
class AbstractPickleTests(unittest.TestCase):
|
|
# Subclass must define self.dumps, self.loads, self.error.
|
|
|
|
_testdata = create_data()
|
|
|
|
def setUp(self):
|
|
pass
|
|
|
|
def test_misc(self):
|
|
# test various datatypes not tested by testdata
|
|
for proto in protocols:
|
|
x = myint(4)
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
|
|
x = (1, ())
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
|
|
x = initarg(1, x)
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
|
|
# XXX test __reduce__ protocol?
|
|
|
|
def test_roundtrip_equality(self):
|
|
expected = self._testdata
|
|
for proto in protocols:
|
|
s = self.dumps(expected, proto)
|
|
got = self.loads(s)
|
|
self.assertEqual(expected, got)
|
|
|
|
def test_load_from_canned_string(self):
|
|
expected = self._testdata
|
|
for canned in DATA0, DATA1, DATA2:
|
|
got = self.loads(canned)
|
|
self.assertEqual(expected, got)
|
|
|
|
# There are gratuitous differences between pickles produced by
|
|
# pickle and cPickle, largely because cPickle starts PUT indices at
|
|
# 1 and pickle starts them at 0. See XXX comment in cPickle's put2() --
|
|
# there's a comment with an exclamation point there whose meaning
|
|
# is a mystery. cPickle also suppresses PUT for objects with a refcount
|
|
# of 1.
|
|
def dont_test_disassembly(self):
|
|
from pickletools import dis
|
|
|
|
for proto, expected in (0, DATA0_DIS), (1, DATA1_DIS):
|
|
s = self.dumps(self._testdata, proto)
|
|
filelike = cStringIO.StringIO()
|
|
dis(s, out=filelike)
|
|
got = filelike.getvalue()
|
|
self.assertEqual(expected, got)
|
|
|
|
def test_recursive_list(self):
|
|
l = []
|
|
l.append(l)
|
|
for proto in protocols:
|
|
s = self.dumps(l, proto)
|
|
x = self.loads(s)
|
|
self.assertEqual(len(x), 1)
|
|
self.assertTrue(x is x[0])
|
|
|
|
def test_recursive_tuple(self):
|
|
t = ([],)
|
|
t[0].append(t)
|
|
for proto in protocols:
|
|
s = self.dumps(t, proto)
|
|
x = self.loads(s)
|
|
self.assertEqual(len(x), 1)
|
|
self.assertEqual(len(x[0]), 1)
|
|
self.assertTrue(x is x[0][0])
|
|
|
|
def test_recursive_dict(self):
|
|
d = {}
|
|
d[1] = d
|
|
for proto in protocols:
|
|
s = self.dumps(d, proto)
|
|
x = self.loads(s)
|
|
self.assertEqual(x.keys(), [1])
|
|
self.assertTrue(x[1] is x)
|
|
|
|
def test_recursive_inst(self):
|
|
i = C()
|
|
i.attr = i
|
|
for proto in protocols:
|
|
s = self.dumps(i, proto)
|
|
x = self.loads(s)
|
|
self.assertEqual(dir(x), dir(i))
|
|
self.assertIs(x.attr, x)
|
|
|
|
def test_recursive_multi(self):
|
|
l = []
|
|
d = {1:l}
|
|
i = C()
|
|
i.attr = d
|
|
l.append(i)
|
|
for proto in protocols:
|
|
s = self.dumps(l, proto)
|
|
x = self.loads(s)
|
|
self.assertEqual(len(x), 1)
|
|
self.assertEqual(dir(x[0]), dir(i))
|
|
self.assertEqual(x[0].attr.keys(), [1])
|
|
self.assertTrue(x[0].attr[1] is x)
|
|
|
|
def test_garyp(self):
|
|
self.assertRaises(self.error, self.loads, 'garyp')
|
|
|
|
def test_insecure_strings(self):
|
|
insecure = ["abc", "2 + 2", # not quoted
|
|
#"'abc' + 'def'", # not a single quoted string
|
|
"'abc", # quote is not closed
|
|
"'abc\"", # open quote and close quote don't match
|
|
"'abc' ?", # junk after close quote
|
|
"'\\'", # trailing backslash
|
|
"'", # issue #17710
|
|
"' ", # issue #17710
|
|
# some tests of the quoting rules
|
|
#"'abc\"\''",
|
|
#"'\\\\a\'\'\'\\\'\\\\\''",
|
|
]
|
|
for s in insecure:
|
|
buf = "S" + s + "\012p0\012."
|
|
self.assertRaises(ValueError, self.loads, buf)
|
|
|
|
if have_unicode:
|
|
def test_unicode(self):
|
|
endcases = [u'', u'<\\u>', u'<\\\u1234>', u'<\n>',
|
|
u'<\\>', u'<\\\U00012345>']
|
|
for proto in protocols:
|
|
for u in endcases:
|
|
p = self.dumps(u, proto)
|
|
u2 = self.loads(p)
|
|
self.assertEqual(u2, u)
|
|
|
|
def test_unicode_high_plane(self):
|
|
t = u'\U00012345'
|
|
for proto in protocols:
|
|
p = self.dumps(t, proto)
|
|
t2 = self.loads(p)
|
|
self.assertEqual(t2, t)
|
|
|
|
def test_ints(self):
|
|
import sys
|
|
for proto in protocols:
|
|
n = sys.maxint
|
|
while n:
|
|
for expected in (-n, n):
|
|
s = self.dumps(expected, proto)
|
|
n2 = self.loads(s)
|
|
self.assertEqual(expected, n2)
|
|
n = n >> 1
|
|
|
|
def test_maxint64(self):
|
|
maxint64 = (1L << 63) - 1
|
|
data = 'I' + str(maxint64) + '\n.'
|
|
got = self.loads(data)
|
|
self.assertEqual(got, maxint64)
|
|
|
|
# Try too with a bogus literal.
|
|
data = 'I' + str(maxint64) + 'JUNK\n.'
|
|
self.assertRaises(ValueError, self.loads, data)
|
|
|
|
def test_long(self):
|
|
for proto in protocols:
|
|
# 256 bytes is where LONG4 begins.
|
|
for nbits in 1, 8, 8*254, 8*255, 8*256, 8*257:
|
|
nbase = 1L << nbits
|
|
for npos in nbase-1, nbase, nbase+1:
|
|
for n in npos, -npos:
|
|
pickle = self.dumps(n, proto)
|
|
got = self.loads(pickle)
|
|
self.assertEqual(n, got)
|
|
# Try a monster. This is quadratic-time in protos 0 & 1, so don't
|
|
# bother with those.
|
|
nbase = long("deadbeeffeedface", 16)
|
|
nbase += nbase << 1000000
|
|
for n in nbase, -nbase:
|
|
p = self.dumps(n, 2)
|
|
got = self.loads(p)
|
|
self.assertEqual(n, got)
|
|
|
|
def test_float(self):
|
|
test_values = [0.0, 4.94e-324, 1e-310, 7e-308, 6.626e-34, 0.1, 0.5,
|
|
3.14, 263.44582062374053, 6.022e23, 1e30]
|
|
test_values = test_values + [-x for x in test_values]
|
|
for proto in protocols:
|
|
for value in test_values:
|
|
pickle = self.dumps(value, proto)
|
|
got = self.loads(pickle)
|
|
self.assertEqual(value, got)
|
|
|
|
@run_with_locale('LC_ALL', 'de_DE', 'fr_FR')
|
|
def test_float_format(self):
|
|
# make sure that floats are formatted locale independent
|
|
self.assertEqual(self.dumps(1.2)[0:3], 'F1.')
|
|
|
|
def test_reduce(self):
|
|
pass
|
|
|
|
def test_getinitargs(self):
|
|
pass
|
|
|
|
def test_metaclass(self):
|
|
a = use_metaclass()
|
|
for proto in protocols:
|
|
s = self.dumps(a, proto)
|
|
b = self.loads(s)
|
|
self.assertEqual(a.__class__, b.__class__)
|
|
|
|
def test_dynamic_class(self):
|
|
a = create_dynamic_class("my_dynamic_class", (object,))
|
|
copy_reg.pickle(pickling_metaclass, pickling_metaclass.__reduce__)
|
|
for proto in protocols:
|
|
s = self.dumps(a, proto)
|
|
b = self.loads(s)
|
|
self.assertEqual(a, b)
|
|
|
|
def test_structseq(self):
|
|
import time
|
|
import os
|
|
|
|
t = time.localtime()
|
|
for proto in protocols:
|
|
s = self.dumps(t, proto)
|
|
u = self.loads(s)
|
|
self.assertEqual(t, u)
|
|
if hasattr(os, "stat"):
|
|
t = os.stat(os.curdir)
|
|
s = self.dumps(t, proto)
|
|
u = self.loads(s)
|
|
self.assertEqual(t, u)
|
|
if hasattr(os, "statvfs"):
|
|
t = os.statvfs(os.curdir)
|
|
s = self.dumps(t, proto)
|
|
u = self.loads(s)
|
|
self.assertEqual(t, u)
|
|
|
|
# Tests for protocol 2
|
|
|
|
def test_proto(self):
|
|
build_none = pickle.NONE + pickle.STOP
|
|
for proto in protocols:
|
|
expected = build_none
|
|
if proto >= 2:
|
|
expected = pickle.PROTO + chr(proto) + expected
|
|
p = self.dumps(None, proto)
|
|
self.assertEqual(p, expected)
|
|
|
|
oob = protocols[-1] + 1 # a future protocol
|
|
badpickle = pickle.PROTO + chr(oob) + build_none
|
|
try:
|
|
self.loads(badpickle)
|
|
except ValueError, detail:
|
|
self.assertTrue(str(detail).startswith(
|
|
"unsupported pickle protocol"))
|
|
else:
|
|
self.fail("expected bad protocol number to raise ValueError")
|
|
|
|
def test_long1(self):
|
|
x = 12345678910111213141516178920L
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
self.assertEqual(opcode_in_pickle(pickle.LONG1, s), proto >= 2)
|
|
|
|
def test_long4(self):
|
|
x = 12345678910111213141516178920L << (256*8)
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
self.assertEqual(opcode_in_pickle(pickle.LONG4, s), proto >= 2)
|
|
|
|
def test_short_tuples(self):
|
|
# Map (proto, len(tuple)) to expected opcode.
|
|
expected_opcode = {(0, 0): pickle.TUPLE,
|
|
(0, 1): pickle.TUPLE,
|
|
(0, 2): pickle.TUPLE,
|
|
(0, 3): pickle.TUPLE,
|
|
(0, 4): pickle.TUPLE,
|
|
|
|
(1, 0): pickle.EMPTY_TUPLE,
|
|
(1, 1): pickle.TUPLE,
|
|
(1, 2): pickle.TUPLE,
|
|
(1, 3): pickle.TUPLE,
|
|
(1, 4): pickle.TUPLE,
|
|
|
|
(2, 0): pickle.EMPTY_TUPLE,
|
|
(2, 1): pickle.TUPLE1,
|
|
(2, 2): pickle.TUPLE2,
|
|
(2, 3): pickle.TUPLE3,
|
|
(2, 4): pickle.TUPLE,
|
|
}
|
|
a = ()
|
|
b = (1,)
|
|
c = (1, 2)
|
|
d = (1, 2, 3)
|
|
e = (1, 2, 3, 4)
|
|
for proto in protocols:
|
|
for x in a, b, c, d, e:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y, (proto, x, s, y))
|
|
expected = expected_opcode[proto, len(x)]
|
|
self.assertEqual(opcode_in_pickle(expected, s), True)
|
|
|
|
def test_singletons(self):
|
|
# Map (proto, singleton) to expected opcode.
|
|
expected_opcode = {(0, None): pickle.NONE,
|
|
(1, None): pickle.NONE,
|
|
(2, None): pickle.NONE,
|
|
|
|
(0, True): pickle.INT,
|
|
(1, True): pickle.INT,
|
|
(2, True): pickle.NEWTRUE,
|
|
|
|
(0, False): pickle.INT,
|
|
(1, False): pickle.INT,
|
|
(2, False): pickle.NEWFALSE,
|
|
}
|
|
for proto in protocols:
|
|
for x in None, False, True:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertTrue(x is y, (proto, x, s, y))
|
|
expected = expected_opcode[proto, x]
|
|
self.assertEqual(opcode_in_pickle(expected, s), True)
|
|
|
|
def test_newobj_tuple(self):
|
|
x = MyTuple([1, 2, 3])
|
|
x.foo = 42
|
|
x.bar = "hello"
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(tuple(x), tuple(y))
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
|
|
def test_newobj_list(self):
|
|
x = MyList([1, 2, 3])
|
|
x.foo = 42
|
|
x.bar = "hello"
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
|
|
def test_newobj_generic(self):
|
|
for proto in protocols:
|
|
for C in myclasses:
|
|
B = C.__base__
|
|
x = C(C.sample)
|
|
x.foo = 42
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
detail = (proto, C, B, x, y, type(y))
|
|
self.assertEqual(B(x), B(y), detail)
|
|
self.assertEqual(x.__dict__, y.__dict__, detail)
|
|
|
|
# Register a type with copy_reg, with extension code extcode. Pickle
|
|
# an object of that type. Check that the resulting pickle uses opcode
|
|
# (EXT[124]) under proto 2, and not in proto 1.
|
|
|
|
def produce_global_ext(self, extcode, opcode):
|
|
e = ExtensionSaver(extcode)
|
|
try:
|
|
copy_reg.add_extension(__name__, "MyList", extcode)
|
|
x = MyList([1, 2, 3])
|
|
x.foo = 42
|
|
x.bar = "hello"
|
|
|
|
# Dump using protocol 1 for comparison.
|
|
s1 = self.dumps(x, 1)
|
|
self.assertIn(__name__, s1)
|
|
self.assertIn("MyList", s1)
|
|
self.assertEqual(opcode_in_pickle(opcode, s1), False)
|
|
|
|
y = self.loads(s1)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
|
|
# Dump using protocol 2 for test.
|
|
s2 = self.dumps(x, 2)
|
|
self.assertNotIn(__name__, s2)
|
|
self.assertNotIn("MyList", s2)
|
|
self.assertEqual(opcode_in_pickle(opcode, s2), True)
|
|
|
|
y = self.loads(s2)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
|
|
finally:
|
|
e.restore()
|
|
|
|
def test_global_ext1(self):
|
|
self.produce_global_ext(0x00000001, pickle.EXT1) # smallest EXT1 code
|
|
self.produce_global_ext(0x000000ff, pickle.EXT1) # largest EXT1 code
|
|
|
|
def test_global_ext2(self):
|
|
self.produce_global_ext(0x00000100, pickle.EXT2) # smallest EXT2 code
|
|
self.produce_global_ext(0x0000ffff, pickle.EXT2) # largest EXT2 code
|
|
self.produce_global_ext(0x0000abcd, pickle.EXT2) # check endianness
|
|
|
|
def test_global_ext4(self):
|
|
self.produce_global_ext(0x00010000, pickle.EXT4) # smallest EXT4 code
|
|
self.produce_global_ext(0x7fffffff, pickle.EXT4) # largest EXT4 code
|
|
self.produce_global_ext(0x12abcdef, pickle.EXT4) # check endianness
|
|
|
|
def test_list_chunking(self):
|
|
n = 10 # too small to chunk
|
|
x = range(n)
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
num_appends = count_opcode(pickle.APPENDS, s)
|
|
self.assertEqual(num_appends, proto > 0)
|
|
|
|
n = 2500 # expect at least two chunks when proto > 0
|
|
x = range(n)
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
num_appends = count_opcode(pickle.APPENDS, s)
|
|
if proto == 0:
|
|
self.assertEqual(num_appends, 0)
|
|
else:
|
|
self.assertTrue(num_appends >= 2)
|
|
|
|
def test_dict_chunking(self):
|
|
n = 10 # too small to chunk
|
|
x = dict.fromkeys(range(n))
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
num_setitems = count_opcode(pickle.SETITEMS, s)
|
|
self.assertEqual(num_setitems, proto > 0)
|
|
|
|
n = 2500 # expect at least two chunks when proto > 0
|
|
x = dict.fromkeys(range(n))
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(x, y)
|
|
num_setitems = count_opcode(pickle.SETITEMS, s)
|
|
if proto == 0:
|
|
self.assertEqual(num_setitems, 0)
|
|
else:
|
|
self.assertTrue(num_setitems >= 2)
|
|
|
|
def test_simple_newobj(self):
|
|
x = object.__new__(SimpleNewObj) # avoid __init__
|
|
x.abc = 666
|
|
for proto in protocols:
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(opcode_in_pickle(pickle.NEWOBJ, s), proto >= 2)
|
|
y = self.loads(s) # will raise TypeError if __init__ called
|
|
self.assertEqual(y.abc, 666)
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
|
|
def test_newobj_list_slots(self):
|
|
x = SlotList([1, 2, 3])
|
|
x.foo = 42
|
|
x.bar = "hello"
|
|
s = self.dumps(x, 2)
|
|
y = self.loads(s)
|
|
self.assertEqual(list(x), list(y))
|
|
self.assertEqual(x.__dict__, y.__dict__)
|
|
self.assertEqual(x.foo, y.foo)
|
|
self.assertEqual(x.bar, y.bar)
|
|
|
|
def test_reduce_overrides_default_reduce_ex(self):
|
|
for proto in protocols:
|
|
x = REX_one()
|
|
self.assertEqual(x._reduce_called, 0)
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(x._reduce_called, 1)
|
|
y = self.loads(s)
|
|
self.assertEqual(y._reduce_called, 0)
|
|
|
|
def test_reduce_ex_called(self):
|
|
for proto in protocols:
|
|
x = REX_two()
|
|
self.assertEqual(x._proto, None)
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(x._proto, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(y._proto, None)
|
|
|
|
def test_reduce_ex_overrides_reduce(self):
|
|
for proto in protocols:
|
|
x = REX_three()
|
|
self.assertEqual(x._proto, None)
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(x._proto, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(y._proto, None)
|
|
|
|
def test_reduce_ex_calls_base(self):
|
|
for proto in protocols:
|
|
x = REX_four()
|
|
self.assertEqual(x._proto, None)
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(x._proto, proto)
|
|
y = self.loads(s)
|
|
self.assertEqual(y._proto, proto)
|
|
|
|
def test_reduce_calls_base(self):
|
|
for proto in protocols:
|
|
x = REX_five()
|
|
self.assertEqual(x._reduce_called, 0)
|
|
s = self.dumps(x, proto)
|
|
self.assertEqual(x._reduce_called, 1)
|
|
y = self.loads(s)
|
|
self.assertEqual(y._reduce_called, 1)
|
|
|
|
def test_reduce_bad_iterator(self):
|
|
# Issue4176: crash when 4th and 5th items of __reduce__()
|
|
# are not iterators
|
|
class C(object):
|
|
def __reduce__(self):
|
|
# 4th item is not an iterator
|
|
return list, (), None, [], None
|
|
class D(object):
|
|
def __reduce__(self):
|
|
# 5th item is not an iterator
|
|
return dict, (), None, None, []
|
|
|
|
# Protocol 0 is less strict and also accept iterables.
|
|
for proto in protocols:
|
|
try:
|
|
self.dumps(C(), proto)
|
|
except (AttributeError, pickle.PickleError, cPickle.PickleError):
|
|
pass
|
|
try:
|
|
self.dumps(D(), proto)
|
|
except (AttributeError, pickle.PickleError, cPickle.PickleError):
|
|
pass
|
|
|
|
def test_many_puts_and_gets(self):
|
|
# Test that internal data structures correctly deal with lots of
|
|
# puts/gets.
|
|
keys = ("aaa" + str(i) for i in xrange(100))
|
|
large_dict = dict((k, [4, 5, 6]) for k in keys)
|
|
obj = [dict(large_dict), dict(large_dict), dict(large_dict)]
|
|
|
|
for proto in protocols:
|
|
dumped = self.dumps(obj, proto)
|
|
loaded = self.loads(dumped)
|
|
self.assertEqual(loaded, obj,
|
|
"Failed protocol %d: %r != %r"
|
|
% (proto, obj, loaded))
|
|
|
|
def test_attribute_name_interning(self):
|
|
# Test that attribute names of pickled objects are interned when
|
|
# unpickling.
|
|
for proto in protocols:
|
|
x = C()
|
|
x.foo = 42
|
|
x.bar = "hello"
|
|
s = self.dumps(x, proto)
|
|
y = self.loads(s)
|
|
x_keys = sorted(x.__dict__)
|
|
y_keys = sorted(y.__dict__)
|
|
for x_key, y_key in zip(x_keys, y_keys):
|
|
self.assertIs(x_key, y_key)
|
|
|
|
|
|
# Test classes for reduce_ex
|
|
|
|
class REX_one(object):
|
|
_reduce_called = 0
|
|
def __reduce__(self):
|
|
self._reduce_called = 1
|
|
return REX_one, ()
|
|
# No __reduce_ex__ here, but inheriting it from object
|
|
|
|
class REX_two(object):
|
|
_proto = None
|
|
def __reduce_ex__(self, proto):
|
|
self._proto = proto
|
|
return REX_two, ()
|
|
# No __reduce__ here, but inheriting it from object
|
|
|
|
class REX_three(object):
|
|
_proto = None
|
|
def __reduce_ex__(self, proto):
|
|
self._proto = proto
|
|
return REX_two, ()
|
|
def __reduce__(self):
|
|
raise TestFailed, "This __reduce__ shouldn't be called"
|
|
|
|
class REX_four(object):
|
|
_proto = None
|
|
def __reduce_ex__(self, proto):
|
|
self._proto = proto
|
|
return object.__reduce_ex__(self, proto)
|
|
# Calling base class method should succeed
|
|
|
|
class REX_five(object):
|
|
_reduce_called = 0
|
|
def __reduce__(self):
|
|
self._reduce_called = 1
|
|
return object.__reduce__(self)
|
|
# This one used to fail with infinite recursion
|
|
|
|
# Test classes for newobj
|
|
|
|
class MyInt(int):
|
|
sample = 1
|
|
|
|
class MyLong(long):
|
|
sample = 1L
|
|
|
|
class MyFloat(float):
|
|
sample = 1.0
|
|
|
|
class MyComplex(complex):
|
|
sample = 1.0 + 0.0j
|
|
|
|
class MyStr(str):
|
|
sample = "hello"
|
|
|
|
class MyUnicode(unicode):
|
|
sample = u"hello \u1234"
|
|
|
|
class MyTuple(tuple):
|
|
sample = (1, 2, 3)
|
|
|
|
class MyList(list):
|
|
sample = [1, 2, 3]
|
|
|
|
class MyDict(dict):
|
|
sample = {"a": 1, "b": 2}
|
|
|
|
myclasses = [MyInt, MyLong, MyFloat,
|
|
MyComplex,
|
|
MyStr, MyUnicode,
|
|
MyTuple, MyList, MyDict]
|
|
|
|
|
|
class SlotList(MyList):
|
|
__slots__ = ["foo"]
|
|
|
|
class SimpleNewObj(object):
|
|
def __init__(self, a, b, c):
|
|
# raise an error, to make sure this isn't called
|
|
raise TypeError("SimpleNewObj.__init__() didn't expect to get called")
|
|
|
|
class AbstractPickleModuleTests(unittest.TestCase):
|
|
|
|
def test_dump_closed_file(self):
|
|
import os
|
|
f = open(TESTFN, "w")
|
|
try:
|
|
f.close()
|
|
self.assertRaises(ValueError, self.module.dump, 123, f)
|
|
finally:
|
|
os.remove(TESTFN)
|
|
|
|
def test_load_closed_file(self):
|
|
import os
|
|
f = open(TESTFN, "w")
|
|
try:
|
|
f.close()
|
|
self.assertRaises(ValueError, self.module.dump, 123, f)
|
|
finally:
|
|
os.remove(TESTFN)
|
|
|
|
def test_load_from_and_dump_to_file(self):
|
|
stream = cStringIO.StringIO()
|
|
data = [123, {}, 124]
|
|
self.module.dump(data, stream)
|
|
stream.seek(0)
|
|
unpickled = self.module.load(stream)
|
|
self.assertEqual(unpickled, data)
|
|
|
|
def test_highest_protocol(self):
|
|
# Of course this needs to be changed when HIGHEST_PROTOCOL changes.
|
|
self.assertEqual(self.module.HIGHEST_PROTOCOL, 2)
|
|
|
|
def test_callapi(self):
|
|
f = cStringIO.StringIO()
|
|
# With and without keyword arguments
|
|
self.module.dump(123, f, -1)
|
|
self.module.dump(123, file=f, protocol=-1)
|
|
self.module.dumps(123, -1)
|
|
self.module.dumps(123, protocol=-1)
|
|
self.module.Pickler(f, -1)
|
|
self.module.Pickler(f, protocol=-1)
|
|
|
|
def test_incomplete_input(self):
|
|
s = StringIO.StringIO("X''.")
|
|
self.assertRaises(EOFError, self.module.load, s)
|
|
|
|
def test_restricted(self):
|
|
# issue7128: cPickle failed in restricted mode
|
|
builtins = {self.module.__name__: self.module,
|
|
'__import__': __import__}
|
|
d = {}
|
|
teststr = "def f(): {0}.dumps(0)".format(self.module.__name__)
|
|
exec teststr in {'__builtins__': builtins}, d
|
|
d['f']()
|
|
|
|
def test_bad_input(self):
|
|
# Test issue4298
|
|
s = '\x58\0\0\0\x54'
|
|
self.assertRaises(EOFError, self.module.loads, s)
|
|
# Test issue7455
|
|
s = '0'
|
|
# XXX Why doesn't pickle raise UnpicklingError?
|
|
self.assertRaises((IndexError, cPickle.UnpicklingError),
|
|
self.module.loads, s)
|
|
|
|
class AbstractPersistentPicklerTests(unittest.TestCase):
|
|
|
|
# This class defines persistent_id() and persistent_load()
|
|
# functions that should be used by the pickler. All even integers
|
|
# are pickled using persistent ids.
|
|
|
|
def persistent_id(self, object):
|
|
if isinstance(object, int) and object % 2 == 0:
|
|
self.id_count += 1
|
|
return str(object)
|
|
else:
|
|
return None
|
|
|
|
def persistent_load(self, oid):
|
|
self.load_count += 1
|
|
object = int(oid)
|
|
assert object % 2 == 0
|
|
return object
|
|
|
|
def test_persistence(self):
|
|
self.id_count = 0
|
|
self.load_count = 0
|
|
L = range(10)
|
|
self.assertEqual(self.loads(self.dumps(L)), L)
|
|
self.assertEqual(self.id_count, 5)
|
|
self.assertEqual(self.load_count, 5)
|
|
|
|
def test_bin_persistence(self):
|
|
self.id_count = 0
|
|
self.load_count = 0
|
|
L = range(10)
|
|
self.assertEqual(self.loads(self.dumps(L, 1)), L)
|
|
self.assertEqual(self.id_count, 5)
|
|
self.assertEqual(self.load_count, 5)
|
|
|
|
class AbstractPicklerUnpicklerObjectTests(unittest.TestCase):
|
|
|
|
pickler_class = None
|
|
unpickler_class = None
|
|
|
|
def setUp(self):
|
|
assert self.pickler_class
|
|
assert self.unpickler_class
|
|
|
|
def test_clear_pickler_memo(self):
|
|
# To test whether clear_memo() has any effect, we pickle an object,
|
|
# then pickle it again without clearing the memo; the two serialized
|
|
# forms should be different. If we clear_memo() and then pickle the
|
|
# object again, the third serialized form should be identical to the
|
|
# first one we obtained.
|
|
data = ["abcdefg", "abcdefg", 44]
|
|
f = cStringIO.StringIO()
|
|
pickler = self.pickler_class(f)
|
|
|
|
pickler.dump(data)
|
|
first_pickled = f.getvalue()
|
|
|
|
# Reset StringIO object.
|
|
f.seek(0)
|
|
f.truncate()
|
|
|
|
pickler.dump(data)
|
|
second_pickled = f.getvalue()
|
|
|
|
# Reset the Pickler and StringIO objects.
|
|
pickler.clear_memo()
|
|
f.seek(0)
|
|
f.truncate()
|
|
|
|
pickler.dump(data)
|
|
third_pickled = f.getvalue()
|
|
|
|
self.assertNotEqual(first_pickled, second_pickled)
|
|
self.assertEqual(first_pickled, third_pickled)
|
|
|
|
def test_priming_pickler_memo(self):
|
|
# Verify that we can set the Pickler's memo attribute.
|
|
data = ["abcdefg", "abcdefg", 44]
|
|
f = cStringIO.StringIO()
|
|
pickler = self.pickler_class(f)
|
|
|
|
pickler.dump(data)
|
|
first_pickled = f.getvalue()
|
|
|
|
f = cStringIO.StringIO()
|
|
primed = self.pickler_class(f)
|
|
primed.memo = pickler.memo
|
|
|
|
primed.dump(data)
|
|
primed_pickled = f.getvalue()
|
|
|
|
self.assertNotEqual(first_pickled, primed_pickled)
|
|
|
|
def test_priming_unpickler_memo(self):
|
|
# Verify that we can set the Unpickler's memo attribute.
|
|
data = ["abcdefg", "abcdefg", 44]
|
|
f = cStringIO.StringIO()
|
|
pickler = self.pickler_class(f)
|
|
|
|
pickler.dump(data)
|
|
first_pickled = f.getvalue()
|
|
|
|
f = cStringIO.StringIO()
|
|
primed = self.pickler_class(f)
|
|
primed.memo = pickler.memo
|
|
|
|
primed.dump(data)
|
|
primed_pickled = f.getvalue()
|
|
|
|
unpickler = self.unpickler_class(cStringIO.StringIO(first_pickled))
|
|
unpickled_data1 = unpickler.load()
|
|
|
|
self.assertEqual(unpickled_data1, data)
|
|
|
|
primed = self.unpickler_class(cStringIO.StringIO(primed_pickled))
|
|
primed.memo = unpickler.memo
|
|
unpickled_data2 = primed.load()
|
|
|
|
primed.memo.clear()
|
|
|
|
self.assertEqual(unpickled_data2, data)
|
|
self.assertTrue(unpickled_data2 is unpickled_data1)
|
|
|
|
def test_reusing_unpickler_objects(self):
|
|
data1 = ["abcdefg", "abcdefg", 44]
|
|
f = cStringIO.StringIO()
|
|
pickler = self.pickler_class(f)
|
|
pickler.dump(data1)
|
|
pickled1 = f.getvalue()
|
|
|
|
data2 = ["abcdefg", 44, 44]
|
|
f = cStringIO.StringIO()
|
|
pickler = self.pickler_class(f)
|
|
pickler.dump(data2)
|
|
pickled2 = f.getvalue()
|
|
|
|
f = cStringIO.StringIO()
|
|
f.write(pickled1)
|
|
f.seek(0)
|
|
unpickler = self.unpickler_class(f)
|
|
self.assertEqual(unpickler.load(), data1)
|
|
|
|
f.seek(0)
|
|
f.truncate()
|
|
f.write(pickled2)
|
|
f.seek(0)
|
|
self.assertEqual(unpickler.load(), data2)
|
|
|
|
class BigmemPickleTests(unittest.TestCase):
|
|
|
|
# Memory requirements: 1 byte per character for input strings, 1 byte
|
|
# for pickled data, 1 byte for unpickled strings, 1 byte for internal
|
|
# buffer and 1 byte of free space for resizing of internal buffer.
|
|
|
|
@precisionbigmemtest(size=_2G + 100*_1M, memuse=5)
|
|
def test_huge_strlist(self, size):
|
|
chunksize = 2**20
|
|
data = []
|
|
while size > chunksize:
|
|
data.append('x' * chunksize)
|
|
size -= chunksize
|
|
chunksize += 1
|
|
data.append('y' * size)
|
|
|
|
try:
|
|
for proto in protocols:
|
|
try:
|
|
pickled = self.dumps(data, proto)
|
|
res = self.loads(pickled)
|
|
self.assertEqual(res, data)
|
|
finally:
|
|
res = None
|
|
pickled = None
|
|
finally:
|
|
data = None
|