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Issue #15467: Move helpers for __sizeof__ tests into test_support.

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Patch by Serhiy Storchaka.
This commit is contained in:
Martin v. Löwis 2012-07-29 16:33:05 +02:00
parent 90bc2dbcce
commit 33f799725c
4 changed files with 124 additions and 148 deletions
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28
Lib/test/support.py
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@ -23,6 +23,9 @@ import time
import sysconfig
import fnmatch
import logging.handlers
import struct
import tempfile
import _testcapi
try:
import _thread, threading
@ -984,6 +987,31 @@ def python_is_optimized():
return final_opt and final_opt != '-O0'
_header = '2P'
if hasattr(sys, "gettotalrefcount"):
_header = '2P' + _header
_vheader = _header + 'P'
def calcobjsize(fmt):
return struct.calcsize(_header + fmt + '0P')
def calcvobjsize(fmt):
return struct.calcsize(_vheader + fmt + '0P')
_TPFLAGS_HAVE_GC = 1<<14
_TPFLAGS_HEAPTYPE = 1<<9
def check_sizeof(test, o, size):
result = sys.getsizeof(o)
# add GC header size
if ((type(o) == type) and (o.__flags__ & _TPFLAGS_HEAPTYPE) or\
((type(o) != type) and (type(o).__flags__ & _TPFLAGS_HAVE_GC))):
size += _testcapi.SIZEOF_PYGC_HEAD
msg = 'wrong size for %s: got %d, expected %d' \
% (type(o), result, size)
test.assertEqual(result, size, msg)
#=======================================================================
# Decorator for running a function in a different locale, correctly resetting
# it afterwards.