[Pkg-ayatana-devel] Bug#879937: libqtdbustest: FTBFS: unit test fails with BadAddress DBusException

[Aaron M. Ucko]

Source: libqtdbustest
Version: 0.2+bzr42+repack1-1
Severity: important
Tags: upstream
Justification: fails to build from source

Builds of libqtdbustest for most architectures failed:

  [  PASSED  ] 4 tests.
  [  FAILED  ] 2 tests, listed below:
  [  FAILED  ] TestDBusTestRunner.StartsSessionService
  [  FAILED  ] TestQProcessDBusService.WaitsForServiceAppeared

   2 FAILED TESTS

These tests all encountered stack traces along the lines of

  Traceback (most recent call last):
    File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
      "__main__", mod_spec)
    File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
      exec(code, run_globals)
    File "/usr/lib/python3/dist-packages/dbusmock/__main__.py", line 81, in <module>
      bus = dbusmock.testcase.DBusTestCase.get_dbus(args.system)
    File "/usr/lib/python3/dist-packages/dbusmock/testcase.py", line 150, in get_dbus
      return dbus.bus.BusConnection(os.environ['DBUS_SESSION_BUS_ADDRESS'])
    File "/usr/lib/python3/dist-packages/dbus/bus.py", line 122, in __new__
      bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
  dbus.exceptions.DBusException: org.freedesktop.DBus.Error.BadAddress: '=' character not found or has no value following it
  unknown file: Failure
  C++ exception with description "Process [/usr/bin/python3] for service [test.session.name] failed to appear on bus" thrown in the test body.

though in some cases the error was instead

  dbus.exceptions.DBusException: org.freedesktop.DBus.Error.BadAddress: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")

This latter variant occurred for StartsSessionService on armel and for
WaitsForServiceAppeared on s390x, as respectively detailed at

https://buildd.debian.org/status/fetch.php?pkg=libqtdbustest&arch=armel&ver=0.2%2Bbzr42%2Brepack1-1&stamp=1509080424&raw=0
https://buildd.debian.org/status/fetch.php?pkg=libqtdbustest&arch=s390x&ver=0.2%2Bbzr42%2Brepack1-1&stamp=1509012596&raw=0

I also see errors along these lines in ThrowsErrorForFailToStart,
which I suspect is succeeding for the wrong reason.

Could you please take a look?

Thanks!

-- 
Aaron M. Ucko, KB1CJC (amu at alum.mit.edu, ucko at debian.org)
http://www.mit.edu/~amu/ | http://stuff.mit.edu/cgi/finger/?amu@monk.mit.edu