[Bug 2076269] Re: invalid base64 encoded gzip data on s390x causes autopkgtest failures

[Timo Aaltonen]

Hello Chris, or anyone else affected,

Accepted apport into oracular-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/apport/2.30.0-0ubuntu4.2 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
oracular to verification-done-oracular. If it does not fix the bug for
you, please add a comment stating that, and change the tag to
verification-failed-oracular. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: apport (Ubuntu Oracular)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-oracular

** Changed in: apport (Ubuntu Noble)
       Status: New => Fix Committed

** Tags added: verification-needed-noble

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https://bugs.launchpad.net/bugs/2076269

Title:
  invalid base64 encoded gzip data on s390x causes autopkgtest failures

Status in Apport:
  In Progress
Status in Ubuntu on IBM z Systems:
  Fix Released
Status in apport package in Ubuntu:
  In Progress
Status in apport source package in Noble:
  Fix Committed
Status in apport source package in Oracular:
  Fix Committed

Bug description:
  [ Impact ]

  The following tests all fail with an encoding/decoding issue:

  tests/unit/test_problem_report.py::T:test_modify
  tests/unit/test_report.py::T::test_report_from_systemd_coredump_storage_journal
  tests/integration/test_problem_report::T::test_write_file

  Example failure:

  564s =================================== FAILURES ===================================
  564s ________________________________ T.test_modify _________________________________
  564s
  564s self = <tests.unit.test_problem_report.T testMethod=test_modify>
  564s
  564s     def test_modify(self):
  564s         """reading, modifying fields, and writing back."""
  564s         report = textwrap.dedent(
  564s             """\
  564s             ProblemType: Crash
  564s             Date: now!
  564s             Long:
  564s              xxx
  564s              .
  564s              yyy
  564s             Short: Bar
  564s             File: base64
  564s              H4sICAAAAAAC/0ZpbGUA
  564s              c3RyxIAMcBAFAK/2p9MfAAAA
  564s             """
  564s         ).encode()
  564s
  564s         pr = problem_report.ProblemReport()
  564s         pr.load(io.BytesIO(report))
  564s
  564s         self.assertEqual(pr["Long"], "xxx\n.\nyyy")
  564s
  564s         # write back unmodified
  564s         out = io.BytesIO()
  564s         pr.write(out)
  564s >       self.assertEqual(out.getvalue(), report)
  564s E       AssertionError: b'Pro[73 chars]e64\n H4sICAAAAAAC/0ZpbGUA\n cnTChAxwEA==\n BRgAr/an0x8AAAA=\n' != b'Pro[73 chars]e64\n H4sICAAAAAAC/0ZpbGUA\n c3RyxIAMcBAFAK/2p9MfAAAA\n'
  564s
  564s tests/unit/test_problem_report.py:509: AssertionError

  Autopkgtest noble log: https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/s390x/a/apport/20240807_023039_8850a@/log.gz
  oracular log: https://autopkgtest.ubuntu.com/results/autopkgtest-oracular/oracular/s390x/a/apport/20240805_132135_d3a80@/log.gz

  This failure was seen on noble (log above) but also on oracular.

  [ Test Plan ]

  Check that the fixed Apport does not have failing unit-and-
  integration-tests autopkgtests on all archs.

  [ Where problems could occur ]

  The fix only touches test code. It could only affect the test results,
  but not code installed on the users machines.

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