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A test for the recent overflow-in-format-crash bug. 

Only runs when sys.maxint == 2**32 - 1; different things go wrong
on a 64-bit box.
This commit is contained in:
Michael W. Hudson 2002-10-11 13:46:32 +00:00
parent cafe0eefc3
commit 549ab8a98d
1 changed files with 14 additions and 2 deletions
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16
Lib/test/test_format.py
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@ -183,12 +183,12 @@ testboth("%#X", 0, "0X0")
testboth("%#X", 0L, "0X0")
testboth("%x", 0x42, "42")
# testboth("%x", -0x42, "ffffffbe") # Alas, that's specific to 32-bit machines
# testboth("%x", -0x42, "ffffffbe") # specific to 32-bit boxes; see below
testboth("%x", 0x42L, "42")
testboth("%x", -0x42L, "-42")
testboth("%o", 042, "42")
# testboth("%o", -042, "37777777736") # Alas, that's specific to 32-bit machines
# testboth("%o", -042, "37777777736") # specific to 32-bit boxes; see below
testboth("%o", 042L, "42")
testboth("%o", -042L, "-42")
@ -221,3 +221,15 @@ if have_unicode:
test_exc('%d', '1', TypeError, "int argument required")
test_exc('%g', '1', TypeError, "float argument required")
if sys.maxint == 2**32-1:
# crashes 2.2.1 and earlier:
try:
"%*d"%(sys.maxint, -127)
except MemoryError:
pass
else:
raise TestFailed, '"%*d"%(sys.maxint, -127) should fail'
# (different things go wrong on a 64 bit box...)
testboth("%x", -0x42, "ffffffbe")
testboth("%o", -042, "37777777736")