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[C++] TST: TestS3FSGeneric.GetFileInfoSelector due to milliseconds with new aws bindings #55356
Description
Describe the bug, including details regarding any error messages, version, and platform.
Seeing test failures in conda-forge/arrow-cpp-feedstock#2062 against newer aws bindings; looks like timestamps either gained or lost millisecond accuracy, where the tests expect only seconds
[ RUN ] TestS3FSGeneric.GetFileInfoSelector
$SRC_DIR/cpp/src/arrow/filesystem/test_util.cc:159: Failure
Expected equality of these values:
info.mtime()
Which is: 2026-10-25 10:56:50.000000000
mtime
Which is: 2026-10-25 10:56:50.791000000
For path 'AB/CD/ghi'
[ FAILED ] TestS3FSGeneric.GetFileInfoSelector (102 ms)
Component(s)
C++
Activity
[-]TST: TestS3FSGeneric.GetFileInfoSelector due to milliseconds with new aws bindings[/-][+][C++] TST: TestS3FSGeneric.GetFileInfoSelector due to milliseconds with new aws bindings[/+]Maha-ait commentedon Nov 1, 2026
Hi , I would like to work in this issue. I'm looking into how to resolve the timestamp precision mismatch , Could you please assign it to me
tadeja commentedon Nov 6, 2026
See #55427 (comment) points by @raulcd
tadeja commentedon Nov 6, 2026
@Maha-ait I've created a simple draft PR that you're welcome to check: #55433
If you've worked on this already please feel free to suggest another solution/open a PR.
tadeja commentedon Nov 7, 2026
@h-vetinari if you'd like to check the current fix proposed in #55433
h-vetinari commentedon Nov 7, 2026
Testing this PR in conda-forge/arrow-cpp-feedstock#2101. If it gets merged by the bot, it worked. :)
GH-55356: [C++] Compare mtime at second precision in `GetFileInfoSele…
kou commentedon Nov 8, 2026
Issue resolved by pull request 55433
#55433