On Wed, Apr 11, 2018 at 9:02 AM, Derrick Stolee <sto...@gmail.com> wrote:
> On 4/10/2018 10:51 PM, Junio C Hamano wrote:
>> In case we want to do the "we know this is very large, but we do not
>> know the exact value", we may actually want a mode where we can
>> pretend that GENERATION_NUMBER_MAX is set to quite low (say 256) and
>> make sure that the code to handle overflow behaves sensibly.
>
> I agree. I wonder how we can effectively expose this value into a test. It's
> probably not sufficient to manually test using compiler flags ("-D
> GENERATION_NUMBER_MAX=8").

A few similar cases of tests needing to tweak some behavior do so by
environment variable. See, for instance, GIT_GETTEXT_POISON and
GIT_FSMONITOR_TEST.

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