[Bug 2073935] Re: tests/integration/test_hookutils.py::T::test_recent_syslog fails on s390x

[Benjamin Drung]

** Description changed:

+ [ Impact ]
+ 
+ The recent syslog in Apport reports might not be complete. This bug
+ causes the test_recent_syslog to fail sometimes.
+ 
+ [ Test Plan ]
+ 
+ Check that the fixed Apport does not have failing unit-and-integration-
+ tests autopkgtests on all archs.
+ 
+ [ Where problems could occur ]
+ 
+ The patch fixes apport.hookutils.recent_syslog. This could lead to more
+ syslog output in bug report making the report longer.
+ 
+ [ Original report ]
+ 
  The Apport 2.29.0 test case
  `tests/integration/test_hookutils.py::T::test_recent_syslog` fails on
  s390x:
  
  ```
  349s =================================== FAILURES ===================================
  349s _____________________________ T.test_recent_syslog _____________________________
- 349s 
+ 349s
  349s self = <tests.integration.test_hookutils.T testMethod=test_recent_syslog>
- 349s 
+ 349s
  349s     def test_recent_syslog(self):
  349s         """recent_syslog"""
  349s         self.assertEqual(
  349s             apport.hookutils.recent_syslog(re.compile("."), path="/nonexisting"), ""
  349s         )
  349s         self.assertEqual(
  349s             apport.hookutils.recent_syslog(re.compile("ThisCantPossiblyHitAnything")),
  349s             "",
  349s         )
  349s         if os.path.exists("/run/systemd/system") or os.access(
  349s             "/var/log/syslog", os.R_OK
  349s         ):
  349s >           self.assertNotEqual(len(apport.hookutils.recent_syslog(re.compile("."))), 0)
  349s E           AssertionError: 0 == 0
- 349s 
+ 349s
  349s tests/integration/test_hookutils.py:208: AssertionError
  349s ----------------------------- Captured stderr call -----------------------------
  349s tail: cannot open '/nonexisting' for reading: No such file or directory
  ```
  
  Full log: https://autopkgtest.ubuntu.com/results/autopkgtest-
  oracular/oracular/s390x/a/apport/20240722_004756_30d6c@/log.gz

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https://bugs.launchpad.net/bugs/2073935

Title:
  tests/integration/test_hookutils.py::T::test_recent_syslog fails on
  s390x

Status in Apport:
  Fix Released
Status in apport package in Ubuntu:
  Fix Released
Status in apport source package in Noble:
  New

Bug description:
  [ Impact ]

  The recent syslog in Apport reports might not be complete. This bug
  causes the test_recent_syslog to fail sometimes.

  [ Test Plan ]

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

  [ Where problems could occur ]

  The patch fixes apport.hookutils.recent_syslog. This could lead to
  more syslog output in bug report making the report longer.

  [ Original report ]

  The Apport 2.29.0 test case
  `tests/integration/test_hookutils.py::T::test_recent_syslog` fails on
  s390x:

  ```
  349s =================================== FAILURES ===================================
  349s _____________________________ T.test_recent_syslog _____________________________
  349s
  349s self = <tests.integration.test_hookutils.T testMethod=test_recent_syslog>
  349s
  349s     def test_recent_syslog(self):
  349s         """recent_syslog"""
  349s         self.assertEqual(
  349s             apport.hookutils.recent_syslog(re.compile("."), path="/nonexisting"), ""
  349s         )
  349s         self.assertEqual(
  349s             apport.hookutils.recent_syslog(re.compile("ThisCantPossiblyHitAnything")),
  349s             "",
  349s         )
  349s         if os.path.exists("/run/systemd/system") or os.access(
  349s             "/var/log/syslog", os.R_OK
  349s         ):
  349s >           self.assertNotEqual(len(apport.hookutils.recent_syslog(re.compile("."))), 0)
  349s E           AssertionError: 0 == 0
  349s
  349s tests/integration/test_hookutils.py:208: AssertionError
  349s ----------------------------- Captured stderr call -----------------------------
  349s tail: cannot open '/nonexisting' for reading: No such file or directory
  ```

  Full log: https://autopkgtest.ubuntu.com/results/autopkgtest-
  oracular/oracular/s390x/a/apport/20240722_004756_30d6c@/log.gz

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