[PATCH 1/2] test/raw: add some messages likely to be multiples of buffer size
david at tethera.net
Sun May 5 03:49:16 PDT 2019
Tomi Ollila <tomi.ollila at iki.fi> writes:
> On Sun, May 05 2019, Tomi Ollila wrote:
>> On Sat, May 04 2019, David Bremner wrote:
>>> +test_python <<EOF
>>> +from email.message import EmailMessage
>>> +for pow in range(12,21):
>> .......................^ space. i.e. (12, 21)
>> from 4KiB to 1MiB. uh, perhaps I should have kept my fingers crossed.
>> (that said, my range would have been 10, 17 (1024 - 65536))
> except that...
> if fread(3) (and friends) used 1024 byte buffer, for 4096 byte message
> it would read full buffer 4 times (and not yet noticing EOF), and then
> next fread() would return 0 (and now flag EOF)...
I originally started from a 1024 byte message, but it was a bit messy to
mark some sizes as broken and others not. Perhaps that's not a good
reason in retrospect, since the the fact that >= 4096 is broken is
specific to some libc (and kernel?). This means that if
someome has a libc where the buffer size is bigger then 4096, this test
might return non-zero. My take away from that is that I should probably
squash these two commits into one.
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