Re: Help with DBus Tests Failing for Python Package

[Jaft <jaft.r@outlook.com>]

So I tried a different tactic and, noticing the error said the issue was ~dbus-session~ didn't exist, did this, instead:

> (arguments     (list #:phases #~(modify-phases %standard-phases
>                                   (add-before 'check 'start-xserver
>                                     (lambda _
>                                       ;; Tests require a running dbus-daemon.
>                                       (system "dbus-daemon &")
>                                       ;; For missing '/etc/machine-id'.
>                                       (setenv "DBUS_FATAL_WARNINGS" "0"))))))
> (inputs        (list python python-pygobject))
> (native-inputs (list xorg-server-for-tests))

This works much better and the 232 tests get run; most, even pass…except 4. The output is thus:

> test_get_object_path (tests.test_proxy.DBusProxyTestCase)
> Test get_object_path. ... ok
>
> ======================================================================
> FAIL: test_async_calls (tests.test_unix.DBusUnixExampleTestCase)
> Test DBus async calls with fds.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/test_unix.py", line 420, in test_async_calls
>     self._run_test()
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/lib_dbus.py", line 194, in _run_test
>     self.assertEqual(client.exitcode, 0, msg)
> AssertionError: 1 != 0 : _call_hello_async has finished with 1
>
> ======================================================================
> FAIL: test_properties (tests.test_unix.DBusUnixExampleTestCase)
> Test DBus properties with fds.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/test_unix.py", line 457, in test_properties
>     self._run_test()
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/lib_dbus.py", line 194, in _run_test
>     self.assertEqual(client.exitcode, 0, msg)
> AssertionError: 1 != 0 : _set_pipes has finished with 1
>
> ======================================================================
> FAIL: test_signals (tests.test_unix.DBusUnixExampleTestCase)
> Test DBus signals with fds.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/test_unix.py", line 481, in test_signals
>     self._run_test()
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/lib_dbus.py", line 194, in _run_test
>     self.assertEqual(client.exitcode, 0, msg)
> AssertionError: 1 != 0 : _trigger_signal has finished with 1
>
> ======================================================================
> FAIL: test_sync_calls (tests.test_unix.DBusUnixExampleTestCase)
> Test DBus sync calls with fds.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/test_unix.py", line 398, in test_sync_calls
>     self._run_test()
>   File "/tmp/guix-build-python-dasbus-1.7.drv-0/dasbus-1.7/tests/lib_dbus.py", line 194, in _run_test
>     self.assertEqual(client.exitcode, 0, msg)
> AssertionError: 1 != 0 : _call_hello_sync has finished with 1
>
> ----------------------------------------------------------------------
> Ran 232 tests in 681.414s
>
> FAILED (failures=4)
> Test failed: <unittest.runner.TextTestResult run=232 errors=0 failures=4>
> error: Test failed: <unittest.runner.TextTestResult run=232 errors=0 failures=4>
> error: in phase 'check': uncaught exception:
> %exception #<&invoke-error program: "python" arguments: ("-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" "test") exit-status: 1 term-signal: #f stop-signal: #f>

It doesn't look like enough to clearly tell /why/ things failed (and looking through the source of the particular failing tests isn't much clearer, for me, unfortunately) but maybe someone's run across a similar experience, before, that might indicate something to try.






 On Monday, December 26, 2022 at 10:18:55 PM CST, Jaft <jaft.r@outlook.com> wrote: 
> I'm attempting to package the Python package DasBus (https://github.com/rhinstaller/dasbus/) and the tests, when it tries to test by making DBus calls, are failing.
>
> For specificity, the error output is:
>
> > test_additional_arguments (tests.test_dbus.DBusExampleTestCase)
> > Call a DBus method. ... **
> > GLib-GIO:ERROR:../glib-2.70.2/gio/gtestdbus.c:667:start_daemon: assertion failed (error == NULL): Failed to execute child process “dbus-daemon” (No such file or directory) (g-exec-error-quark, 8)
> > Bail out! GLib-GIO:ERROR:../glib-2.70.2/gio/gtestdbus.c:667:start_daemon: assertion failed (error == NULL): Failed to execute child process “dbus-daemon” (No such file or directory) (g-exec-error-quark, 8)
> > error: in phase 'check': uncaught exception:
> > %exception #<&invoke-error program: "python" arguments: ("-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" "test") exit-status: #f term-signal: 6 stop-signal: #f>
>
> I tried using ~xorg-server-for-tests~ and initializing the server before the =check= phase but I'm still running into the same error.
>
> Would anyone know what might be a cause?
>
>
>
> > (define-public python-dasbus
> >   (package
> >     (name          "python-dasbus")
> >     (version       "1.7")
> >     (source        (origin
> >                      (method url-fetch)
> >                      (uri    (pypi-uri "dasbus" version))
> >                      (sha256 (base32
> >                                "1xmn6q00v3kif5q8jcq6vi84k6xb97s2ry5rgdgyxs6z3a20v1d8"))))
> >     (build-system  python-build-system)
> >     (arguments     (list #:phases #~(modify-phases %standard-phases
> >                                       (add-before 'check 'start-xserver
> >                                         (lambda _
> >                                           (system "Xvfb :1 &")
> >                                           (setenv "DISPLAY" ":1"))))))
> >     (inputs        (list python python-pygobject))
> >     (native-inputs (list xorg-server-for-tests))
> >     (home-page     "https://github.com/rhinstaller/dasbus")
> >     (synopsis      "DBus library in Python 3")
> >     (description   "DBus library in Python 3")
> >     (license       #f)))