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Revision dae5d728bc3f1d4039b64e4ec3a9036fd5d19587 authored by Miss Islington (bot) on 10 November 2020, 19:58:27 UTC, committed by GitHub on 10 November 2020, 19:58:27 UTC
Fix an assertion error in format() in debug build for floating point formatting with "n" format, zero padding and small width. Release build is not impacted. Patch by Karthikeyan Singaravelan. (cherry picked from commit 3f7983a25a3d19779283c707fbdd5bc91b1587ef) Co-authored-by: Xtreak <tir.karthi@gmail.com>
1 parent a63234c
Tip revision: dae5d728bc3f1d4039b64e4ec3a9036fd5d19587 authored by Miss Islington (bot) on 10 November 2020, 19:58:27 UTC
bpo-35560: Remove assertion from format(float, "n") (GH-11288) (GH-23231)
bpo-35560: Remove assertion from format(float, "n") (GH-11288) (GH-23231)
Tip revision: dae5d72
test_list.py
import sys
from test import list_tests
import pickle
import unittest
class ListTest(list_tests.CommonTest):
type2test = list
def test_basic(self):
self.assertEqual(list([]), [])
l0_3 = [0, 1, 2, 3]
l0_3_bis = list(l0_3)
self.assertEqual(l0_3, l0_3_bis)
self.assertTrue(l0_3 is not l0_3_bis)
self.assertEqual(list(()), [])
self.assertEqual(list((0, 1, 2, 3)), [0, 1, 2, 3])
self.assertEqual(list(''), [])
self.assertEqual(list('spam'), ['s', 'p', 'a', 'm'])
if sys.maxsize == 0x7fffffff:
# This test can currently only work on 32-bit machines.
# XXX If/when PySequence_Length() returns a ssize_t, it should be
# XXX re-enabled.
# Verify clearing of bug #556025.
# This assumes that the max data size (sys.maxint) == max
# address size this also assumes that the address size is at
# least 4 bytes with 8 byte addresses, the bug is not well
# tested
#
# Note: This test is expected to SEGV under Cygwin 1.3.12 or
# earlier due to a newlib bug. See the following mailing list
# thread for the details:
# http://sources.redhat.com/ml/newlib/2002/msg00369.html
self.assertRaises(MemoryError, list, range(sys.maxsize // 2))
# This code used to segfault in Py2.4a3
x = []
x.extend(-y for y in x)
self.assertEqual(x, [])
def test_truth(self):
super().test_truth()
self.assertTrue(not [])
self.assertTrue([42])
def test_identity(self):
self.assertTrue([] is not [])
def test_len(self):
super().test_len()
self.assertEqual(len([]), 0)
self.assertEqual(len([0]), 1)
self.assertEqual(len([0, 1, 2]), 3)
def test_overflow(self):
lst = [4, 5, 6, 7]
n = int((sys.maxsize*2+2) // len(lst))
def mul(a, b): return a * b
def imul(a, b): a *= b
self.assertRaises((MemoryError, OverflowError), mul, lst, n)
self.assertRaises((MemoryError, OverflowError), imul, lst, n)
def test_repr_large(self):
# Check the repr of large list objects
def check(n):
l = [0] * n
s = repr(l)
self.assertEqual(s,
'[' + ', '.join(['0'] * n) + ']')
check(10) # check our checking code
check(1000000)
def test_iterator_pickle(self):
orig = self.type2test([4, 5, 6, 7])
data = [10, 11, 12, 13, 14, 15]
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
# initial iterator
itorig = iter(orig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data)
# running iterator
next(itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data[1:])
# empty iterator
for i in range(1, len(orig)):
next(itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data[len(orig):])
# exhausted iterator
self.assertRaises(StopIteration, next, itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(list(it), [])
def test_reversed_pickle(self):
orig = self.type2test([4, 5, 6, 7])
data = [10, 11, 12, 13, 14, 15]
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
# initial iterator
itorig = reversed(orig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data[len(orig)-1::-1])
# running iterator
next(itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), data[len(orig)-2::-1])
# empty iterator
for i in range(1, len(orig)):
next(itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(type(it), type(itorig))
self.assertEqual(list(it), [])
# exhausted iterator
self.assertRaises(StopIteration, next, itorig)
d = pickle.dumps((itorig, orig), proto)
it, a = pickle.loads(d)
a[:] = data
self.assertEqual(list(it), [])
def test_no_comdat_folding(self):
# Issue 8847: In the PGO build, the MSVC linker's COMDAT folding
# optimization causes failures in code that relies on distinct
# function addresses.
class L(list): pass
with self.assertRaises(TypeError):
(3,) + L([1,2])
if __name__ == "__main__":
unittest.main()
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