1258 lines
44 KiB
Python
1258 lines
44 KiB
Python
"""Bigmem tests - tests for the 32-bit boundary in containers.
|
|
|
|
These tests try to exercise the 32-bit boundary that is sometimes, if
|
|
rarely, exceeded in practice, but almost never tested. They are really only
|
|
meaningful on 64-bit builds on machines with a *lot* of memory, but the
|
|
tests are always run, usually with very low memory limits to make sure the
|
|
tests themselves don't suffer from bitrot. To run them for real, pass a
|
|
high memory limit to regrtest, with the -M option.
|
|
"""
|
|
|
|
from test import support
|
|
from test.support import bigmemtest, _1G, _2G, _4G
|
|
|
|
import unittest
|
|
import operator
|
|
import sys
|
|
import functools
|
|
|
|
# These tests all use one of the bigmemtest decorators to indicate how much
|
|
# memory they use and how much memory they need to be even meaningful. The
|
|
# decorators take two arguments: a 'memuse' indicator declaring
|
|
# (approximate) bytes per size-unit the test will use (at peak usage), and a
|
|
# 'minsize' indicator declaring a minimum *useful* size. A test that
|
|
# allocates a bytestring to test various operations near the end will have a
|
|
# minsize of at least 2Gb (or it wouldn't reach the 32-bit limit, so the
|
|
# test wouldn't be very useful) and a memuse of 1 (one byte per size-unit,
|
|
# if it allocates only one big string at a time.)
|
|
#
|
|
# When run with a memory limit set, both decorators skip tests that need
|
|
# more memory than available to be meaningful. The precisionbigmemtest will
|
|
# always pass minsize as size, even if there is much more memory available.
|
|
# The bigmemtest decorator will scale size upward to fill available memory.
|
|
#
|
|
# Bigmem testing houserules:
|
|
#
|
|
# - Try not to allocate too many large objects. It's okay to rely on
|
|
# refcounting semantics, and don't forget that 's = create_largestring()'
|
|
# doesn't release the old 's' (if it exists) until well after its new
|
|
# value has been created. Use 'del s' before the create_largestring call.
|
|
#
|
|
# - Do *not* compare large objects using assertEqual, assertIn or similar.
|
|
# It's a lengthy operation and the errormessage will be utterly useless
|
|
# due to its size. To make sure whether a result has the right contents,
|
|
# better to use the strip or count methods, or compare meaningful slices.
|
|
#
|
|
# - Don't forget to test for large indices, offsets and results and such,
|
|
# in addition to large sizes. Anything that probes the 32-bit boundary.
|
|
#
|
|
# - When repeating an object (say, a substring, or a small list) to create
|
|
# a large object, make the subobject of a length that is not a power of
|
|
# 2. That way, int-wrapping problems are more easily detected.
|
|
#
|
|
# - Despite the bigmemtest decorator, all tests will actually be called
|
|
# with a much smaller number too, in the normal test run (5Kb currently.)
|
|
# This is so the tests themselves get frequent testing.
|
|
# Consequently, always make all large allocations based on the
|
|
# passed-in 'size', and don't rely on the size being very large. Also,
|
|
# memuse-per-size should remain sane (less than a few thousand); if your
|
|
# test uses more, adjust 'size' upward, instead.
|
|
|
|
# BEWARE: it seems that one failing test can yield other subsequent tests to
|
|
# fail as well. I do not know whether it is due to memory fragmentation
|
|
# issues, or other specifics of the platform malloc() routine.
|
|
|
|
ascii_char_size = 1
|
|
ucs2_char_size = 2
|
|
ucs4_char_size = 4
|
|
|
|
|
|
class BaseStrTest:
|
|
|
|
def _test_capitalize(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = self.from_latin1(' abc def ghi')
|
|
s = _('-') * size + SUBSTR
|
|
caps = s.capitalize()
|
|
self.assertEqual(caps[-len(SUBSTR):],
|
|
SUBSTR.capitalize())
|
|
self.assertEqual(caps.lstrip(_('-')), SUBSTR)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_center(self, size):
|
|
SUBSTR = self.from_latin1(' abc def ghi')
|
|
s = SUBSTR.center(size)
|
|
self.assertEqual(len(s), size)
|
|
lpadsize = rpadsize = (len(s) - len(SUBSTR)) // 2
|
|
if len(s) % 2:
|
|
lpadsize += 1
|
|
self.assertEqual(s[lpadsize:-rpadsize], SUBSTR)
|
|
self.assertEqual(s.strip(), SUBSTR.strip())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_count(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = _('.') * size + SUBSTR
|
|
self.assertEqual(s.count(_('.')), size)
|
|
s += _('.')
|
|
self.assertEqual(s.count(_('.')), size + 1)
|
|
self.assertEqual(s.count(_(' ')), 3)
|
|
self.assertEqual(s.count(_('i')), 1)
|
|
self.assertEqual(s.count(_('j')), 0)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_endswith(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = _('-') * size + SUBSTR
|
|
self.assertTrue(s.endswith(SUBSTR))
|
|
self.assertTrue(s.endswith(s))
|
|
s2 = _('...') + s
|
|
self.assertTrue(s2.endswith(s))
|
|
self.assertFalse(s.endswith(_('a') + SUBSTR))
|
|
self.assertFalse(SUBSTR.endswith(s))
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=2)
|
|
def test_expandtabs(self, size):
|
|
_ = self.from_latin1
|
|
s = _('-') * size
|
|
tabsize = 8
|
|
self.assertTrue(s.expandtabs() == s)
|
|
del s
|
|
slen, remainder = divmod(size, tabsize)
|
|
s = _(' \t') * slen
|
|
s = s.expandtabs(tabsize)
|
|
self.assertEqual(len(s), size - remainder)
|
|
self.assertEqual(len(s.strip(_(' '))), 0)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_find(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
sublen = len(SUBSTR)
|
|
s = _('').join([SUBSTR, _('-') * size, SUBSTR])
|
|
self.assertEqual(s.find(_(' ')), 0)
|
|
self.assertEqual(s.find(SUBSTR), 0)
|
|
self.assertEqual(s.find(_(' '), sublen), sublen + size)
|
|
self.assertEqual(s.find(SUBSTR, len(SUBSTR)), sublen + size)
|
|
self.assertEqual(s.find(_('i')), SUBSTR.find(_('i')))
|
|
self.assertEqual(s.find(_('i'), sublen),
|
|
sublen + size + SUBSTR.find(_('i')))
|
|
self.assertEqual(s.find(_('i'), size),
|
|
sublen + size + SUBSTR.find(_('i')))
|
|
self.assertEqual(s.find(_('j')), -1)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_index(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
sublen = len(SUBSTR)
|
|
s = _('').join([SUBSTR, _('-') * size, SUBSTR])
|
|
self.assertEqual(s.index(_(' ')), 0)
|
|
self.assertEqual(s.index(SUBSTR), 0)
|
|
self.assertEqual(s.index(_(' '), sublen), sublen + size)
|
|
self.assertEqual(s.index(SUBSTR, sublen), sublen + size)
|
|
self.assertEqual(s.index(_('i')), SUBSTR.index(_('i')))
|
|
self.assertEqual(s.index(_('i'), sublen),
|
|
sublen + size + SUBSTR.index(_('i')))
|
|
self.assertEqual(s.index(_('i'), size),
|
|
sublen + size + SUBSTR.index(_('i')))
|
|
self.assertRaises(ValueError, s.index, _('j'))
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_isalnum(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('123456')
|
|
s = _('a') * size + SUBSTR
|
|
self.assertTrue(s.isalnum())
|
|
s += _('.')
|
|
self.assertFalse(s.isalnum())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_isalpha(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('zzzzzzz')
|
|
s = _('a') * size + SUBSTR
|
|
self.assertTrue(s.isalpha())
|
|
s += _('.')
|
|
self.assertFalse(s.isalpha())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_isdigit(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('123456')
|
|
s = _('9') * size + SUBSTR
|
|
self.assertTrue(s.isdigit())
|
|
s += _('z')
|
|
self.assertFalse(s.isdigit())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_islower(self, size):
|
|
_ = self.from_latin1
|
|
chars = _(''.join(
|
|
chr(c) for c in range(255) if not chr(c).isupper()))
|
|
repeats = size // len(chars) + 2
|
|
s = chars * repeats
|
|
self.assertTrue(s.islower())
|
|
s += _('A')
|
|
self.assertFalse(s.islower())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_isspace(self, size):
|
|
_ = self.from_latin1
|
|
whitespace = _(' \f\n\r\t\v')
|
|
repeats = size // len(whitespace) + 2
|
|
s = whitespace * repeats
|
|
self.assertTrue(s.isspace())
|
|
s += _('j')
|
|
self.assertFalse(s.isspace())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_istitle(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('123456')
|
|
s = _('').join([_('A'), _('a') * size, SUBSTR])
|
|
self.assertTrue(s.istitle())
|
|
s += _('A')
|
|
self.assertTrue(s.istitle())
|
|
s += _('aA')
|
|
self.assertFalse(s.istitle())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_isupper(self, size):
|
|
_ = self.from_latin1
|
|
chars = _(''.join(
|
|
chr(c) for c in range(255) if not chr(c).islower()))
|
|
repeats = size // len(chars) + 2
|
|
s = chars * repeats
|
|
self.assertTrue(s.isupper())
|
|
s += _('a')
|
|
self.assertFalse(s.isupper())
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_join(self, size):
|
|
_ = self.from_latin1
|
|
s = _('A') * size
|
|
x = s.join([_('aaaaa'), _('bbbbb')])
|
|
self.assertEqual(x.count(_('a')), 5)
|
|
self.assertEqual(x.count(_('b')), 5)
|
|
self.assertTrue(x.startswith(_('aaaaaA')))
|
|
self.assertTrue(x.endswith(_('Abbbbb')))
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_ljust(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = SUBSTR.ljust(size)
|
|
self.assertTrue(s.startswith(SUBSTR + _(' ')))
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.strip(), SUBSTR.strip())
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=2)
|
|
def test_lower(self, size):
|
|
_ = self.from_latin1
|
|
s = _('A') * size
|
|
s = s.lower()
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.count(_('a')), size)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_lstrip(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('abc def ghi')
|
|
s = SUBSTR.rjust(size)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.lstrip(), SUBSTR.lstrip())
|
|
del s
|
|
s = SUBSTR.ljust(size)
|
|
self.assertEqual(len(s), size)
|
|
# Type-specific optimization
|
|
if isinstance(s, (str, bytes)):
|
|
stripped = s.lstrip()
|
|
self.assertTrue(stripped is s)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=2)
|
|
def test_replace(self, size):
|
|
_ = self.from_latin1
|
|
replacement = _('a')
|
|
s = _(' ') * size
|
|
s = s.replace(_(' '), replacement)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.count(replacement), size)
|
|
s = s.replace(replacement, _(' '), size - 4)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.count(replacement), 4)
|
|
self.assertEqual(s[-10:], _(' aaaa'))
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_rfind(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
sublen = len(SUBSTR)
|
|
s = _('').join([SUBSTR, _('-') * size, SUBSTR])
|
|
self.assertEqual(s.rfind(_(' ')), sublen + size + SUBSTR.rfind(_(' ')))
|
|
self.assertEqual(s.rfind(SUBSTR), sublen + size)
|
|
self.assertEqual(s.rfind(_(' '), 0, size), SUBSTR.rfind(_(' ')))
|
|
self.assertEqual(s.rfind(SUBSTR, 0, sublen + size), 0)
|
|
self.assertEqual(s.rfind(_('i')), sublen + size + SUBSTR.rfind(_('i')))
|
|
self.assertEqual(s.rfind(_('i'), 0, sublen), SUBSTR.rfind(_('i')))
|
|
self.assertEqual(s.rfind(_('i'), 0, sublen + size),
|
|
SUBSTR.rfind(_('i')))
|
|
self.assertEqual(s.rfind(_('j')), -1)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_rindex(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
sublen = len(SUBSTR)
|
|
s = _('').join([SUBSTR, _('-') * size, SUBSTR])
|
|
self.assertEqual(s.rindex(_(' ')),
|
|
sublen + size + SUBSTR.rindex(_(' ')))
|
|
self.assertEqual(s.rindex(SUBSTR), sublen + size)
|
|
self.assertEqual(s.rindex(_(' '), 0, sublen + size - 1),
|
|
SUBSTR.rindex(_(' ')))
|
|
self.assertEqual(s.rindex(SUBSTR, 0, sublen + size), 0)
|
|
self.assertEqual(s.rindex(_('i')),
|
|
sublen + size + SUBSTR.rindex(_('i')))
|
|
self.assertEqual(s.rindex(_('i'), 0, sublen), SUBSTR.rindex(_('i')))
|
|
self.assertEqual(s.rindex(_('i'), 0, sublen + size),
|
|
SUBSTR.rindex(_('i')))
|
|
self.assertRaises(ValueError, s.rindex, _('j'))
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_rjust(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = SUBSTR.ljust(size)
|
|
self.assertTrue(s.startswith(SUBSTR + _(' ')))
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.strip(), SUBSTR.strip())
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_rstrip(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = SUBSTR.ljust(size)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.rstrip(), SUBSTR.rstrip())
|
|
del s
|
|
s = SUBSTR.rjust(size)
|
|
self.assertEqual(len(s), size)
|
|
# Type-specific optimization
|
|
if isinstance(s, (str, bytes)):
|
|
stripped = s.rstrip()
|
|
self.assertTrue(stripped is s)
|
|
|
|
# The test takes about size bytes to build a string, and then about
|
|
# sqrt(size) substrings of sqrt(size) in size and a list to
|
|
# hold sqrt(size) items. It's close but just over 2x size.
|
|
@bigmemtest(size=_2G, memuse=2.1)
|
|
def test_split_small(self, size):
|
|
_ = self.from_latin1
|
|
# Crudely calculate an estimate so that the result of s.split won't
|
|
# take up an inordinate amount of memory
|
|
chunksize = int(size ** 0.5 + 2)
|
|
SUBSTR = _('a') + _(' ') * chunksize
|
|
s = SUBSTR * chunksize
|
|
l = s.split()
|
|
self.assertEqual(len(l), chunksize)
|
|
expected = _('a')
|
|
for item in l:
|
|
self.assertEqual(item, expected)
|
|
del l
|
|
l = s.split(_('a'))
|
|
self.assertEqual(len(l), chunksize + 1)
|
|
expected = _(' ') * chunksize
|
|
for item in filter(None, l):
|
|
self.assertEqual(item, expected)
|
|
|
|
# Allocates a string of twice size (and briefly two) and a list of
|
|
# size. Because of internal affairs, the s.split() call produces a
|
|
# list of size times the same one-character string, so we only
|
|
# suffer for the list size. (Otherwise, it'd cost another 48 times
|
|
# size in bytes!) Nevertheless, a list of size takes
|
|
# 8*size bytes.
|
|
@bigmemtest(size=_2G + 5, memuse=2 * ascii_char_size + 8)
|
|
def test_split_large(self, size):
|
|
_ = self.from_latin1
|
|
s = _(' a') * size + _(' ')
|
|
l = s.split()
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(set(l), set([_('a')]))
|
|
del l
|
|
l = s.split(_('a'))
|
|
self.assertEqual(len(l), size + 1)
|
|
self.assertEqual(set(l), set([_(' ')]))
|
|
|
|
@bigmemtest(size=_2G, memuse=2.1)
|
|
def test_splitlines(self, size):
|
|
_ = self.from_latin1
|
|
# Crudely calculate an estimate so that the result of s.split won't
|
|
# take up an inordinate amount of memory
|
|
chunksize = int(size ** 0.5 + 2) // 2
|
|
SUBSTR = _(' ') * chunksize + _('\n') + _(' ') * chunksize + _('\r\n')
|
|
s = SUBSTR * (chunksize * 2)
|
|
l = s.splitlines()
|
|
self.assertEqual(len(l), chunksize * 4)
|
|
expected = _(' ') * chunksize
|
|
for item in l:
|
|
self.assertEqual(item, expected)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_startswith(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi')
|
|
s = _('-') * size + SUBSTR
|
|
self.assertTrue(s.startswith(s))
|
|
self.assertTrue(s.startswith(_('-') * size))
|
|
self.assertFalse(s.startswith(SUBSTR))
|
|
|
|
@bigmemtest(size=_2G, memuse=1)
|
|
def test_strip(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _(' abc def ghi ')
|
|
s = SUBSTR.rjust(size)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.strip(), SUBSTR.strip())
|
|
del s
|
|
s = SUBSTR.ljust(size)
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.strip(), SUBSTR.strip())
|
|
|
|
def _test_swapcase(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _("aBcDeFG12.'\xa9\x00")
|
|
sublen = len(SUBSTR)
|
|
repeats = size // sublen + 2
|
|
s = SUBSTR * repeats
|
|
s = s.swapcase()
|
|
self.assertEqual(len(s), sublen * repeats)
|
|
self.assertEqual(s[:sublen * 3], SUBSTR.swapcase() * 3)
|
|
self.assertEqual(s[-sublen * 3:], SUBSTR.swapcase() * 3)
|
|
|
|
def _test_title(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('SpaaHAaaAaham')
|
|
s = SUBSTR * (size // len(SUBSTR) + 2)
|
|
s = s.title()
|
|
self.assertTrue(s.startswith((SUBSTR * 3).title()))
|
|
self.assertTrue(s.endswith(SUBSTR.lower() * 3))
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_translate(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('aZz.z.Aaz.')
|
|
trans = bytes.maketrans(b'.aZ', b'-!$')
|
|
sublen = len(SUBSTR)
|
|
repeats = size // sublen + 2
|
|
s = SUBSTR * repeats
|
|
s = s.translate(trans)
|
|
self.assertEqual(len(s), repeats * sublen)
|
|
self.assertEqual(s[:sublen], SUBSTR.translate(trans))
|
|
self.assertEqual(s[-sublen:], SUBSTR.translate(trans))
|
|
self.assertEqual(s.count(_('.')), 0)
|
|
self.assertEqual(s.count(_('!')), repeats * 2)
|
|
self.assertEqual(s.count(_('z')), repeats * 3)
|
|
|
|
@bigmemtest(size=_2G + 5, memuse=2)
|
|
def test_upper(self, size):
|
|
_ = self.from_latin1
|
|
s = _('a') * size
|
|
s = s.upper()
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.count(_('A')), size)
|
|
|
|
@bigmemtest(size=_2G + 20, memuse=1)
|
|
def test_zfill(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('-568324723598234')
|
|
s = SUBSTR.zfill(size)
|
|
self.assertTrue(s.endswith(_('0') + SUBSTR[1:]))
|
|
self.assertTrue(s.startswith(_('-0')))
|
|
self.assertEqual(len(s), size)
|
|
self.assertEqual(s.count(_('0')), size - len(SUBSTR))
|
|
|
|
# This test is meaningful even with size < 2G, as long as the
|
|
# doubled string is > 2G (but it tests more if both are > 2G :)
|
|
@bigmemtest(size=_1G + 2, memuse=3)
|
|
def test_concat(self, size):
|
|
_ = self.from_latin1
|
|
s = _('.') * size
|
|
self.assertEqual(len(s), size)
|
|
s = s + s
|
|
self.assertEqual(len(s), size * 2)
|
|
self.assertEqual(s.count(_('.')), size * 2)
|
|
|
|
# This test is meaningful even with size < 2G, as long as the
|
|
# repeated string is > 2G (but it tests more if both are > 2G :)
|
|
@bigmemtest(size=_1G + 2, memuse=3)
|
|
def test_repeat(self, size):
|
|
_ = self.from_latin1
|
|
s = _('.') * size
|
|
self.assertEqual(len(s), size)
|
|
s = s * 2
|
|
self.assertEqual(len(s), size * 2)
|
|
self.assertEqual(s.count(_('.')), size * 2)
|
|
|
|
@bigmemtest(size=_2G + 20, memuse=2)
|
|
def test_slice_and_getitem(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('0123456789')
|
|
sublen = len(SUBSTR)
|
|
s = SUBSTR * (size // sublen)
|
|
stepsize = len(s) // 100
|
|
stepsize = stepsize - (stepsize % sublen)
|
|
for i in range(0, len(s) - stepsize, stepsize):
|
|
self.assertEqual(s[i], SUBSTR[0])
|
|
self.assertEqual(s[i:i + sublen], SUBSTR)
|
|
self.assertEqual(s[i:i + sublen:2], SUBSTR[::2])
|
|
if i > 0:
|
|
self.assertEqual(s[i + sublen - 1:i - 1:-3],
|
|
SUBSTR[sublen::-3])
|
|
# Make sure we do some slicing and indexing near the end of the
|
|
# string, too.
|
|
self.assertEqual(s[len(s) - 1], SUBSTR[-1])
|
|
self.assertEqual(s[-1], SUBSTR[-1])
|
|
self.assertEqual(s[len(s) - 10], SUBSTR[0])
|
|
self.assertEqual(s[-sublen], SUBSTR[0])
|
|
self.assertEqual(s[len(s):], _(''))
|
|
self.assertEqual(s[len(s) - 1:], SUBSTR[-1:])
|
|
self.assertEqual(s[-1:], SUBSTR[-1:])
|
|
self.assertEqual(s[len(s) - sublen:], SUBSTR)
|
|
self.assertEqual(s[-sublen:], SUBSTR)
|
|
self.assertEqual(len(s[:]), len(s))
|
|
self.assertEqual(len(s[:len(s) - 5]), len(s) - 5)
|
|
self.assertEqual(len(s[5:-5]), len(s) - 10)
|
|
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s))
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s) + 1)
|
|
self.assertRaises(IndexError, operator.getitem, s, len(s) + 1<<31)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_contains(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('0123456789')
|
|
edge = _('-') * (size // 2)
|
|
s = _('').join([edge, SUBSTR, edge])
|
|
del edge
|
|
self.assertTrue(SUBSTR in s)
|
|
self.assertFalse(SUBSTR * 2 in s)
|
|
self.assertTrue(_('-') in s)
|
|
self.assertFalse(_('a') in s)
|
|
s += _('a')
|
|
self.assertTrue(_('a') in s)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=2)
|
|
def test_compare(self, size):
|
|
_ = self.from_latin1
|
|
s1 = _('-') * size
|
|
s2 = _('-') * size
|
|
self.assertTrue(s1 == s2)
|
|
del s2
|
|
s2 = s1 + _('a')
|
|
self.assertFalse(s1 == s2)
|
|
del s2
|
|
s2 = _('.') * size
|
|
self.assertFalse(s1 == s2)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=1)
|
|
def test_hash(self, size):
|
|
# Not sure if we can do any meaningful tests here... Even if we
|
|
# start relying on the exact algorithm used, the result will be
|
|
# different depending on the size of the C 'long int'. Even this
|
|
# test is dodgy (there's no *guarantee* that the two things should
|
|
# have a different hash, even if they, in the current
|
|
# implementation, almost always do.)
|
|
_ = self.from_latin1
|
|
s = _('\x00') * size
|
|
h1 = hash(s)
|
|
del s
|
|
s = _('\x00') * (size + 1)
|
|
self.assertNotEqual(h1, hash(s))
|
|
|
|
|
|
class StrTest(unittest.TestCase, BaseStrTest):
|
|
|
|
def from_latin1(self, s):
|
|
return s
|
|
|
|
def basic_encode_test(self, size, enc, c='.', expectedsize=None):
|
|
if expectedsize is None:
|
|
expectedsize = size
|
|
try:
|
|
s = c * size
|
|
self.assertEqual(len(s.encode(enc)), expectedsize)
|
|
finally:
|
|
s = None
|
|
|
|
def setUp(self):
|
|
# HACK: adjust memory use of tests inherited from BaseStrTest
|
|
# according to character size.
|
|
self._adjusted = {}
|
|
for name in dir(BaseStrTest):
|
|
if not name.startswith('test_'):
|
|
continue
|
|
meth = getattr(type(self), name)
|
|
try:
|
|
memuse = meth.memuse
|
|
except AttributeError:
|
|
continue
|
|
meth.memuse = ascii_char_size * memuse
|
|
self._adjusted[name] = memuse
|
|
|
|
def tearDown(self):
|
|
for name, memuse in self._adjusted.items():
|
|
getattr(type(self), name).memuse = memuse
|
|
|
|
@bigmemtest(size=_2G, memuse=ucs4_char_size * 3)
|
|
def test_capitalize(self, size):
|
|
self._test_capitalize(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=ucs4_char_size * 3)
|
|
def test_title(self, size):
|
|
self._test_title(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=ucs4_char_size * 3)
|
|
def test_swapcase(self, size):
|
|
self._test_swapcase(size)
|
|
|
|
# Many codecs convert to the legacy representation first, explaining
|
|
# why we add 'ucs4_char_size' to the 'memuse' below.
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=ascii_char_size + 1)
|
|
def test_encode(self, size):
|
|
return self.basic_encode_test(size, 'utf-8')
|
|
|
|
@bigmemtest(size=_4G // 6 + 2, memuse=ascii_char_size + ucs4_char_size + 1)
|
|
def test_encode_raw_unicode_escape(self, size):
|
|
try:
|
|
return self.basic_encode_test(size, 'raw_unicode_escape')
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
|
|
@bigmemtest(size=_4G // 5 + 70, memuse=ascii_char_size + ucs4_char_size + 1)
|
|
def test_encode_utf7(self, size):
|
|
try:
|
|
return self.basic_encode_test(size, 'utf7')
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
|
|
@bigmemtest(size=_4G // 4 + 5, memuse=ascii_char_size + ucs4_char_size + 4)
|
|
def test_encode_utf32(self, size):
|
|
try:
|
|
return self.basic_encode_test(size, 'utf32', expectedsize=4 * size + 4)
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
|
|
@bigmemtest(size=_2G - 1, memuse=ascii_char_size + 1)
|
|
def test_encode_ascii(self, size):
|
|
return self.basic_encode_test(size, 'ascii', c='A')
|
|
|
|
# str % (...) uses a Py_UCS4 intermediate representation
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=ascii_char_size * 2 + ucs4_char_size)
|
|
def test_format(self, size):
|
|
s = '-' * size
|
|
sf = '%s' % (s,)
|
|
self.assertTrue(s == sf)
|
|
del sf
|
|
sf = '..%s..' % (s,)
|
|
self.assertEqual(len(sf), len(s) + 4)
|
|
self.assertTrue(sf.startswith('..-'))
|
|
self.assertTrue(sf.endswith('-..'))
|
|
del s, sf
|
|
|
|
size //= 2
|
|
edge = '-' * size
|
|
s = ''.join([edge, '%s', edge])
|
|
del edge
|
|
s = s % '...'
|
|
self.assertEqual(len(s), size * 2 + 3)
|
|
self.assertEqual(s.count('.'), 3)
|
|
self.assertEqual(s.count('-'), size * 2)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=ascii_char_size * 2)
|
|
def test_repr_small(self, size):
|
|
s = '-' * size
|
|
s = repr(s)
|
|
self.assertEqual(len(s), size + 2)
|
|
self.assertEqual(s[0], "'")
|
|
self.assertEqual(s[-1], "'")
|
|
self.assertEqual(s.count('-'), size)
|
|
del s
|
|
# repr() will create a string four times as large as this 'binary
|
|
# string', but we don't want to allocate much more than twice
|
|
# size in total. (We do extra testing in test_repr_large())
|
|
size = size // 5 * 2
|
|
s = '\x00' * size
|
|
s = repr(s)
|
|
self.assertEqual(len(s), size * 4 + 2)
|
|
self.assertEqual(s[0], "'")
|
|
self.assertEqual(s[-1], "'")
|
|
self.assertEqual(s.count('\\'), size)
|
|
self.assertEqual(s.count('0'), size * 2)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=ascii_char_size * 5)
|
|
def test_repr_large(self, size):
|
|
s = '\x00' * size
|
|
s = repr(s)
|
|
self.assertEqual(len(s), size * 4 + 2)
|
|
self.assertEqual(s[0], "'")
|
|
self.assertEqual(s[-1], "'")
|
|
self.assertEqual(s.count('\\'), size)
|
|
self.assertEqual(s.count('0'), size * 2)
|
|
|
|
# ascii() calls encode('ascii', 'backslashreplace'), which itself
|
|
# creates a temporary Py_UNICODE representation in addition to the
|
|
# original (Py_UCS2) one
|
|
# There's also some overallocation when resizing the ascii() result
|
|
# that isn't taken into account here.
|
|
@bigmemtest(size=_2G // 5 + 1, memuse=ucs2_char_size +
|
|
ucs4_char_size + ascii_char_size * 6)
|
|
def test_unicode_repr(self, size):
|
|
# Use an assigned, but not printable code point.
|
|
# It is in the range of the low surrogates \uDC00-\uDFFF.
|
|
char = "\uDCBA"
|
|
s = char * size
|
|
try:
|
|
for f in (repr, ascii):
|
|
r = f(s)
|
|
self.assertEqual(len(r), 2 + (len(f(char)) - 2) * size)
|
|
self.assertTrue(r.endswith(r"\udcba'"), r[-10:])
|
|
r = None
|
|
finally:
|
|
r = s = None
|
|
|
|
@bigmemtest(size=_2G // 5 + 1, memuse=ucs4_char_size * 2 + ascii_char_size * 10)
|
|
def test_unicode_repr_wide(self, size):
|
|
char = "\U0001DCBA"
|
|
s = char * size
|
|
try:
|
|
for f in (repr, ascii):
|
|
r = f(s)
|
|
self.assertEqual(len(r), 2 + (len(f(char)) - 2) * size)
|
|
self.assertTrue(r.endswith(r"\U0001dcba'"), r[-12:])
|
|
r = None
|
|
finally:
|
|
r = s = None
|
|
|
|
# The original test_translate is overridden here, so as to get the
|
|
# correct size estimate: str.translate() uses an intermediate Py_UCS4
|
|
# representation.
|
|
|
|
@bigmemtest(size=_2G, memuse=ascii_char_size * 2 + ucs4_char_size)
|
|
def test_translate(self, size):
|
|
_ = self.from_latin1
|
|
SUBSTR = _('aZz.z.Aaz.')
|
|
trans = {
|
|
ord(_('.')): _('-'),
|
|
ord(_('a')): _('!'),
|
|
ord(_('Z')): _('$'),
|
|
}
|
|
sublen = len(SUBSTR)
|
|
repeats = size // sublen + 2
|
|
s = SUBSTR * repeats
|
|
s = s.translate(trans)
|
|
self.assertEqual(len(s), repeats * sublen)
|
|
self.assertEqual(s[:sublen], SUBSTR.translate(trans))
|
|
self.assertEqual(s[-sublen:], SUBSTR.translate(trans))
|
|
self.assertEqual(s.count(_('.')), 0)
|
|
self.assertEqual(s.count(_('!')), repeats * 2)
|
|
self.assertEqual(s.count(_('z')), repeats * 3)
|
|
|
|
|
|
class BytesTest(unittest.TestCase, BaseStrTest):
|
|
|
|
def from_latin1(self, s):
|
|
return s.encode("latin-1")
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=1 + ascii_char_size)
|
|
def test_decode(self, size):
|
|
s = self.from_latin1('.') * size
|
|
self.assertEqual(len(s.decode('utf-8')), size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_capitalize(self, size):
|
|
self._test_capitalize(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_title(self, size):
|
|
self._test_title(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_swapcase(self, size):
|
|
self._test_swapcase(size)
|
|
|
|
|
|
class BytearrayTest(unittest.TestCase, BaseStrTest):
|
|
|
|
def from_latin1(self, s):
|
|
return bytearray(s.encode("latin-1"))
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=1 + ascii_char_size)
|
|
def test_decode(self, size):
|
|
s = self.from_latin1('.') * size
|
|
self.assertEqual(len(s.decode('utf-8')), size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_capitalize(self, size):
|
|
self._test_capitalize(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_title(self, size):
|
|
self._test_title(size)
|
|
|
|
@bigmemtest(size=_2G, memuse=2)
|
|
def test_swapcase(self, size):
|
|
self._test_swapcase(size)
|
|
|
|
test_hash = None
|
|
test_split_large = None
|
|
|
|
class TupleTest(unittest.TestCase):
|
|
|
|
# Tuples have a small, fixed-sized head and an array of pointers to
|
|
# data. Since we're testing 64-bit addressing, we can assume that the
|
|
# pointers are 8 bytes, and that thus that the tuples take up 8 bytes
|
|
# per size.
|
|
|
|
# As a side-effect of testing long tuples, these tests happen to test
|
|
# having more than 2<<31 references to any given object. Hence the
|
|
# use of different types of objects as contents in different tests.
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=16)
|
|
def test_compare(self, size):
|
|
t1 = ('',) * size
|
|
t2 = ('',) * size
|
|
self.assertTrue(t1 == t2)
|
|
del t2
|
|
t2 = ('',) * (size + 1)
|
|
self.assertFalse(t1 == t2)
|
|
del t2
|
|
t2 = (1,) * size
|
|
self.assertFalse(t1 == t2)
|
|
|
|
# Test concatenating into a single tuple of more than 2G in length,
|
|
# and concatenating a tuple of more than 2G in length separately, so
|
|
# the smaller test still gets run even if there isn't memory for the
|
|
# larger test (but we still let the tester know the larger test is
|
|
# skipped, in verbose mode.)
|
|
def basic_concat_test(self, size):
|
|
t = ((),) * size
|
|
self.assertEqual(len(t), size)
|
|
t = t + t
|
|
self.assertEqual(len(t), size * 2)
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=24)
|
|
def test_concat_small(self, size):
|
|
return self.basic_concat_test(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=24)
|
|
def test_concat_large(self, size):
|
|
return self.basic_concat_test(size)
|
|
|
|
@bigmemtest(size=_2G // 5 + 10, memuse=8 * 5)
|
|
def test_contains(self, size):
|
|
t = (1, 2, 3, 4, 5) * size
|
|
self.assertEqual(len(t), size * 5)
|
|
self.assertTrue(5 in t)
|
|
self.assertFalse((1, 2, 3, 4, 5) in t)
|
|
self.assertFalse(0 in t)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=8)
|
|
def test_hash(self, size):
|
|
t1 = (0,) * size
|
|
h1 = hash(t1)
|
|
del t1
|
|
t2 = (0,) * (size + 1)
|
|
self.assertFalse(h1 == hash(t2))
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=8)
|
|
def test_index_and_slice(self, size):
|
|
t = (None,) * size
|
|
self.assertEqual(len(t), size)
|
|
self.assertEqual(t[-1], None)
|
|
self.assertEqual(t[5], None)
|
|
self.assertEqual(t[size - 1], None)
|
|
self.assertRaises(IndexError, operator.getitem, t, size)
|
|
self.assertEqual(t[:5], (None,) * 5)
|
|
self.assertEqual(t[-5:], (None,) * 5)
|
|
self.assertEqual(t[20:25], (None,) * 5)
|
|
self.assertEqual(t[-25:-20], (None,) * 5)
|
|
self.assertEqual(t[size - 5:], (None,) * 5)
|
|
self.assertEqual(t[size - 5:size], (None,) * 5)
|
|
self.assertEqual(t[size - 6:size - 2], (None,) * 4)
|
|
self.assertEqual(t[size:size], ())
|
|
self.assertEqual(t[size:size+5], ())
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repeat(self, size):
|
|
t = ('',) * size
|
|
self.assertEqual(len(t), size)
|
|
t = t * 2
|
|
self.assertEqual(len(t), size * 2)
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=24)
|
|
def test_repeat_small(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=24)
|
|
def test_repeat_large(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(size=_1G - 1, memuse=12)
|
|
def test_repeat_large_2(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(size=_1G - 1, memuse=9)
|
|
def test_from_2G_generator(self, size):
|
|
self.skipTest("test needs much more memory than advertised, see issue5438")
|
|
try:
|
|
t = tuple(range(size))
|
|
except MemoryError:
|
|
pass # acceptable on 32-bit
|
|
else:
|
|
count = 0
|
|
for item in t:
|
|
self.assertEqual(item, count)
|
|
count += 1
|
|
self.assertEqual(count, size)
|
|
|
|
@bigmemtest(size=_1G - 25, memuse=9)
|
|
def test_from_almost_2G_generator(self, size):
|
|
self.skipTest("test needs much more memory than advertised, see issue5438")
|
|
try:
|
|
t = tuple(range(size))
|
|
count = 0
|
|
for item in t:
|
|
self.assertEqual(item, count)
|
|
count += 1
|
|
self.assertEqual(count, size)
|
|
except MemoryError:
|
|
pass # acceptable, expected on 32-bit
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repr(self, size):
|
|
t = (0,) * size
|
|
s = repr(t)
|
|
# The repr of a tuple of 0's is exactly three times the tuple length.
|
|
self.assertEqual(len(s), size * 3)
|
|
self.assertEqual(s[:5], '(0, 0')
|
|
self.assertEqual(s[-5:], '0, 0)')
|
|
self.assertEqual(s.count('0'), size)
|
|
|
|
@bigmemtest(size=_2G // 3 + 2, memuse=8 + 3 * ascii_char_size)
|
|
def test_repr_small(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=8 + 3 * ascii_char_size)
|
|
def test_repr_large(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
class ListTest(unittest.TestCase):
|
|
|
|
# Like tuples, lists have a small, fixed-sized head and an array of
|
|
# pointers to data, so 8 bytes per size. Also like tuples, we make the
|
|
# lists hold references to various objects to test their refcount
|
|
# limits.
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=16)
|
|
def test_compare(self, size):
|
|
l1 = [''] * size
|
|
l2 = [''] * size
|
|
self.assertTrue(l1 == l2)
|
|
del l2
|
|
l2 = [''] * (size + 1)
|
|
self.assertFalse(l1 == l2)
|
|
del l2
|
|
l2 = [2] * size
|
|
self.assertFalse(l1 == l2)
|
|
|
|
# Test concatenating into a single list of more than 2G in length,
|
|
# and concatenating a list of more than 2G in length separately, so
|
|
# the smaller test still gets run even if there isn't memory for the
|
|
# larger test (but we still let the tester know the larger test is
|
|
# skipped, in verbose mode.)
|
|
def basic_test_concat(self, size):
|
|
l = [[]] * size
|
|
self.assertEqual(len(l), size)
|
|
l = l + l
|
|
self.assertEqual(len(l), size * 2)
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=24)
|
|
def test_concat_small(self, size):
|
|
return self.basic_test_concat(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=24)
|
|
def test_concat_large(self, size):
|
|
return self.basic_test_concat(size)
|
|
|
|
def basic_test_inplace_concat(self, size):
|
|
l = [sys.stdout] * size
|
|
l += l
|
|
self.assertEqual(len(l), size * 2)
|
|
self.assertTrue(l[0] is l[-1])
|
|
self.assertTrue(l[size - 1] is l[size + 1])
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=24)
|
|
def test_inplace_concat_small(self, size):
|
|
return self.basic_test_inplace_concat(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=24)
|
|
def test_inplace_concat_large(self, size):
|
|
return self.basic_test_inplace_concat(size)
|
|
|
|
@bigmemtest(size=_2G // 5 + 10, memuse=8 * 5)
|
|
def test_contains(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
self.assertEqual(len(l), size * 5)
|
|
self.assertTrue(5 in l)
|
|
self.assertFalse([1, 2, 3, 4, 5] in l)
|
|
self.assertFalse(0 in l)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=8)
|
|
def test_hash(self, size):
|
|
l = [0] * size
|
|
self.assertRaises(TypeError, hash, l)
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=8)
|
|
def test_index_and_slice(self, size):
|
|
l = [None] * size
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-1], None)
|
|
self.assertEqual(l[5], None)
|
|
self.assertEqual(l[size - 1], None)
|
|
self.assertRaises(IndexError, operator.getitem, l, size)
|
|
self.assertEqual(l[:5], [None] * 5)
|
|
self.assertEqual(l[-5:], [None] * 5)
|
|
self.assertEqual(l[20:25], [None] * 5)
|
|
self.assertEqual(l[-25:-20], [None] * 5)
|
|
self.assertEqual(l[size - 5:], [None] * 5)
|
|
self.assertEqual(l[size - 5:size], [None] * 5)
|
|
self.assertEqual(l[size - 6:size - 2], [None] * 4)
|
|
self.assertEqual(l[size:size], [])
|
|
self.assertEqual(l[size:size+5], [])
|
|
|
|
l[size - 2] = 5
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-3:], [None, 5, None])
|
|
self.assertEqual(l.count(5), 1)
|
|
self.assertRaises(IndexError, operator.setitem, l, size, 6)
|
|
self.assertEqual(len(l), size)
|
|
|
|
l[size - 7:] = [1, 2, 3, 4, 5]
|
|
size -= 2
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-7:], [None, None, 1, 2, 3, 4, 5])
|
|
|
|
l[:7] = [1, 2, 3, 4, 5]
|
|
size -= 2
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[:7], [1, 2, 3, 4, 5, None, None])
|
|
|
|
del l[size - 1]
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-1], 4)
|
|
|
|
del l[-2:]
|
|
size -= 2
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-1], 2)
|
|
|
|
del l[0]
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[0], 2)
|
|
|
|
del l[:2]
|
|
size -= 2
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[0], 4)
|
|
|
|
# Like test_concat, split in two.
|
|
def basic_test_repeat(self, size):
|
|
l = [] * size
|
|
self.assertFalse(l)
|
|
l = [''] * size
|
|
self.assertEqual(len(l), size)
|
|
l = l * 2
|
|
self.assertEqual(len(l), size * 2)
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=24)
|
|
def test_repeat_small(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=24)
|
|
def test_repeat_large(self, size):
|
|
return self.basic_test_repeat(size)
|
|
|
|
def basic_test_inplace_repeat(self, size):
|
|
l = ['']
|
|
l *= size
|
|
self.assertEqual(len(l), size)
|
|
self.assertTrue(l[0] is l[-1])
|
|
del l
|
|
|
|
l = [''] * size
|
|
l *= 2
|
|
self.assertEqual(len(l), size * 2)
|
|
self.assertTrue(l[size - 1] is l[-1])
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=16)
|
|
def test_inplace_repeat_small(self, size):
|
|
return self.basic_test_inplace_repeat(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=16)
|
|
def test_inplace_repeat_large(self, size):
|
|
return self.basic_test_inplace_repeat(size)
|
|
|
|
def basic_test_repr(self, size):
|
|
l = [0] * size
|
|
s = repr(l)
|
|
# The repr of a list of 0's is exactly three times the list length.
|
|
self.assertEqual(len(s), size * 3)
|
|
self.assertEqual(s[:5], '[0, 0')
|
|
self.assertEqual(s[-5:], '0, 0]')
|
|
self.assertEqual(s.count('0'), size)
|
|
|
|
@bigmemtest(size=_2G // 3 + 2, memuse=8 + 3 * ascii_char_size)
|
|
def test_repr_small(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=8 + 3 * ascii_char_size)
|
|
def test_repr_large(self, size):
|
|
return self.basic_test_repr(size)
|
|
|
|
# list overallocates ~1/8th of the total size (on first expansion) so
|
|
# the single list.append call puts memuse at 9 bytes per size.
|
|
@bigmemtest(size=_2G, memuse=9)
|
|
def test_append(self, size):
|
|
l = [object()] * size
|
|
l.append(object())
|
|
self.assertEqual(len(l), size+1)
|
|
self.assertTrue(l[-3] is l[-2])
|
|
self.assertFalse(l[-2] is l[-1])
|
|
|
|
@bigmemtest(size=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_count(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
self.assertEqual(l.count(1), size)
|
|
self.assertEqual(l.count("1"), 0)
|
|
|
|
def basic_test_extend(self, size):
|
|
l = [object] * size
|
|
l.extend(l)
|
|
self.assertEqual(len(l), size * 2)
|
|
self.assertTrue(l[0] is l[-1])
|
|
self.assertTrue(l[size - 1] is l[size + 1])
|
|
|
|
@bigmemtest(size=_2G // 2 + 2, memuse=16)
|
|
def test_extend_small(self, size):
|
|
return self.basic_test_extend(size)
|
|
|
|
@bigmemtest(size=_2G + 2, memuse=16)
|
|
def test_extend_large(self, size):
|
|
return self.basic_test_extend(size)
|
|
|
|
@bigmemtest(size=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_index(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
size *= 5
|
|
self.assertEqual(l.index(1), 0)
|
|
self.assertEqual(l.index(5, size - 5), size - 1)
|
|
self.assertEqual(l.index(5, size - 5, size), size - 1)
|
|
self.assertRaises(ValueError, l.index, 1, size - 4, size)
|
|
self.assertRaises(ValueError, l.index, 6)
|
|
|
|
# This tests suffers from overallocation, just like test_append.
|
|
@bigmemtest(size=_2G + 10, memuse=9)
|
|
def test_insert(self, size):
|
|
l = [1.0] * size
|
|
l.insert(size - 1, "A")
|
|
size += 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-3:], [1.0, "A", 1.0])
|
|
|
|
l.insert(size + 1, "B")
|
|
size += 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-3:], ["A", 1.0, "B"])
|
|
|
|
l.insert(1, "C")
|
|
size += 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[:3], [1.0, "C", 1.0])
|
|
self.assertEqual(l[size - 3:], ["A", 1.0, "B"])
|
|
|
|
@bigmemtest(size=_2G // 5 + 4, memuse=8 * 5)
|
|
def test_pop(self, size):
|
|
l = ["a", "b", "c", "d", "e"] * size
|
|
size *= 5
|
|
self.assertEqual(len(l), size)
|
|
|
|
item = l.pop()
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(item, "e")
|
|
self.assertEqual(l[-2:], ["c", "d"])
|
|
|
|
item = l.pop(0)
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(item, "a")
|
|
self.assertEqual(l[:2], ["b", "c"])
|
|
|
|
item = l.pop(size - 2)
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(item, "c")
|
|
self.assertEqual(l[-2:], ["b", "d"])
|
|
|
|
@bigmemtest(size=_2G + 10, memuse=8)
|
|
def test_remove(self, size):
|
|
l = [10] * size
|
|
self.assertEqual(len(l), size)
|
|
|
|
l.remove(10)
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
|
|
# Because of the earlier l.remove(), this append doesn't trigger
|
|
# a resize.
|
|
l.append(5)
|
|
size += 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-2:], [10, 5])
|
|
l.remove(5)
|
|
size -= 1
|
|
self.assertEqual(len(l), size)
|
|
self.assertEqual(l[-2:], [10, 10])
|
|
|
|
@bigmemtest(size=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_reverse(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
l.reverse()
|
|
self.assertEqual(len(l), size * 5)
|
|
self.assertEqual(l[-5:], [5, 4, 3, 2, 1])
|
|
self.assertEqual(l[:5], [5, 4, 3, 2, 1])
|
|
|
|
@bigmemtest(size=_2G // 5 + 2, memuse=8 * 5)
|
|
def test_sort(self, size):
|
|
l = [1, 2, 3, 4, 5] * size
|
|
l.sort()
|
|
self.assertEqual(len(l), size * 5)
|
|
self.assertEqual(l.count(1), size)
|
|
self.assertEqual(l[:10], [1] * 10)
|
|
self.assertEqual(l[-10:], [5] * 10)
|
|
|
|
def test_main():
|
|
support.run_unittest(StrTest, BytesTest, BytearrayTest,
|
|
TupleTest, ListTest)
|
|
|
|
if __name__ == '__main__':
|
|
if len(sys.argv) > 1:
|
|
support.set_memlimit(sys.argv[1])
|
|
test_main()
|