Bug#1002588: wurlitzer: autopkgtest regression on ppc64el: AssertionError: assert 65536 == 32768

[Paul Gevers]

Source: wurlitzer
Version: 3.0.2-3
X-Debbugs-CC: debian...@lists.debian.org
Severity: serious
User: debian...@lists.debian.org
Usertags: regression

Dear maintainer(s),



                       pass            fail
wurlitzer              from testing    3.0.2-3
versioned deps [0]     from testing    from unstable
all others             from testing    from testing

I copied some of the output at the bottom of this report.



More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[1] https://qa.debian.org/excuses.php?package=wurlitzer

https://ci.debian.net/data/autopkgtest/testing/ppc64el/w/wurlitzer/17814179/log.gz

Testing with python3.9:

platform linux -- Python 3.9.9, pytest-6.2.5, py-1.10.0, pluggy-0.13.0
rootdir: /tmp/autopkgtest-lxc.yxsc4awn/downtmp/autopkgtest_tmp
collected 12 items





    @pytest.mark.skipif(

    )
    def test_bufsize():
        default_bufsize = wurlitzer._get_max_pipe_size()
        with wurlitzer.pipes() as (stdout, stderr):

            bufsize = 32768  # seems to only accept powers of two?
        with wurlitzer.pipes(bufsize=bufsize) as (stdout, stderr):

With a recent upload of wurlitzer the autopkgtest of wurlitzer fails in testing when that autopkgtest is run with the binary packages of wurlitzer from unstable on ppc64el. It passes when run with only packages from testing. In tabular form: Currently this regression is blocking the migration to testing [1]. Can you please investigate the situation and fix it? ============================= test session starts ============================== test.py ...........F [100%] =================================== FAILURES =================================== _________________________________ test_bufsize _________________________________ wurlitzer._get_max_pipe_size() is None, reason="requires _get_max_pipe_size" assert fcntl(sys.__stdout__, wurlitzer.F_GETPIPE_SZ) == default_bufsize assert fcntl(sys.__stderr__, wurlitzer.F_GETPIPE_SZ) == default_bufsize

          assert fcntl(sys.__stdout__, wurlitzer.F_GETPIPE_SZ) == bufsize

E           AssertionError: assert 65536 == 32768

E            +    and   1032 = wurlitzer.F_GETPIPE_SZ

test.py:178: AssertionError

FAILED test.py::test_bufsize - AssertionError: assert 65536 == 32768

autopkgtest [17:10:38]: test pytest

E + where 65536 = fcntl(<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, 1032) E + where <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'> = sys.__stdout__ =========================== short test summary info ============================ ========================= 1 failed, 11 passed in 0.72s =========================

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