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||� y )Nz3import _testcapi; _testcapi.pymem_buffer_overflow()a6 Debug memory block at address p={ptr}: API 'm'\n 16 bytes originally requested\n The [0-9] pad bytes at p-[0-9] are FORBIDDENBYTE, as expected.\n The [0-9] pad bytes at tail={ptr} are not all FORBIDDENBYTE \(0x[0-9a-f]{{2}}\):\n at tail\+0: 0x78 \*\*\* OUCH\n at tail\+1: 0xfd\n at tail\+2: 0xfd\n .*\n( The block was made by call #[0-9]+ to debug malloc/realloc.\n)? Data at p: cd cd cd .*\n\nEnable tracemalloc to get the memory block allocation traceback\n\nFatal Python error: _PyMem_DebugRawFree: bad trailing pad byte��ptr)�flags)r �format� PTR_REGEX�re�compile�DOTALL� assertRegex�r r �regexs r �test_buffer_overflowz$PyMemDebugTests.test_buffer_overflow sS � ��j�j�N�O��
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import gc, os, sys, _testcapi
# Disable the GC to avoid crash on GC collection
gc.disable()
try:
_testcapi.z�()
# Exit immediately to avoid a crash while deallocating
# the invalid object
os._exit(0)
except _testcapi.error:
os._exit(1)
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import _testcapi
class C(): pass
# The first loop tests both functions and that remove_mem_hooks()
# can be called twice in a row. The second loop checks a call to
# set_nomemory() after a call to remove_mem_hooks(). The third
# loop checks the start and stop arguments of set_nomemory().
for outer_cnt in range(1, 4):
start = 10 * outer_cnt
for j in range(100):
if j == 0:
if outer_cnt != 3:
_testcapi.set_nomemory(start)
else:
_testcapi.set_nomemory(start, start + 1)
try:
C()
except MemoryError as e:
if outer_cnt != 3:
_testcapi.remove_mem_hooks()
print('MemoryError', outer_cnt, j)
_testcapi.remove_mem_hooks()
break
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