[Python-modules-team] Bug#854701: python-asyncssh: FTBFS (failing tests)

[Santiago Vila]

Package: src:python-asyncssh
Version: 1.8.1-2
Severity: serious

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --with python3,sphinxdoc --buildsystem pybuild
   dh_testdir -i -O--buildsystem=pybuild
   dh_update_autotools_config -i -O--buildsystem=pybuild
   dh_auto_configure -i -O--buildsystem=pybuild
I: pybuild base:184: python3.5 setup.py config 
running config
   dh_auto_build -i -O--buildsystem=pybuild
I: pybuild base:184: /usr/bin/python3 setup.py build 
running build
running build_py
creating /<<PKGBUILDDIR>>/.pybuild/pythonX.Y_3.5/build/asyncssh
copying asyncssh/agent_win32.py -> /<<PKGBUILDDIR>>/.pybuild/pythonX.Y_3.5/build/asyncssh
copying asyncssh/known_hosts.py -> /<<PKGBUILDDIR>>/.pybuild/pythonX.Y_3.5/build/asyncssh

[... snipped ...]

======================================================================
ERROR: test_xauth_environment (tests.test_x11._TestX11)
Test getting Xauthority path from the environment
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python3.5/unittest/mock.py", line 1159, in patched
    return func(*args, **keywargs)
  File "/<<PKGBUILDDIR>>/tests/util.py", line 59, in async_wrapper
    return self.loop.run_until_complete(wrapped_func)
  File "/usr/lib/python3.5/asyncio/base_events.py", line 466, in run_until_complete
    return future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 293, in result
    raise self._exception
  File "/usr/lib/python3.5/asyncio/tasks.py", line 239, in _step
    result = coro.send(None)
  File "/<<PKGBUILDDIR>>/tests/test_x11.py", line 498, in test_xauth_environment
    yield from self._check_x11()
  File "/<<PKGBUILDDIR>>/tests/test_x11.py", line 339, in _check_x11
    proc = yield from _create_x11_process(conn, command, **kwargs)
  File "/<<PKGBUILDDIR>>/tests/test_x11.py", line 52, in _create_x11_process
    x11_display=x11_display, **kwargs))
  File "/<<PKGBUILDDIR>>/asyncssh/misc.py", line 152, in __iter__
    return (yield from self._coro)
  File "/<<PKGBUILDDIR>>/asyncssh/connection.py", line 2487, in create_process
    **kwargs)
  File "/<<PKGBUILDDIR>>/asyncssh/connection.py", line 2408, in create_session
    bool(self._agent_path)))
  File "/<<PKGBUILDDIR>>/asyncssh/channel.py", line 895, in create
    'X11 forwarding request failed')
asyncssh.misc.ChannelOpenError: Channel Open Error: X11 forwarding request failed

----------------------------------------------------------------------
Ran 638 tests in 268.661s

FAILED (errors=18, skipped=2)
Test failed: <unittest.runner.TextTestResult run=638 errors=18 failures=0>
error: Test failed: <unittest.runner.TextTestResult run=638 errors=18 failures=0>
E: pybuild pybuild:276: test: plugin distutils failed with: exit code=1: python3.5 setup.py test 
dh_auto_test: pybuild --test -i python{version} -p 3.5 returned exit code 13
debian/rules:15: recipe for target 'override_dh_auto_test' failed
make[1]: *** [override_dh_auto_test] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
debian/rules:7: recipe for target 'build-indep' failed
make: *** [build-indep] Error 2
dpkg-buildpackage: error: debian/rules build-indep gave error exit status 2
--------------------------------------------------------------------------------

This is just how the build ends, not necessarily the relevant part.

I've put several build logs here:

https://people.debian.org/~sanvila/build-logs/python-asyncssh/

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the page for this package.

The bug should be reproducible with sbuild on a single CPU virtual machine.

If you could not reproduce this using sbuild on a single CPU virtual machine (as I did),
please do not downgrade or mark as unreproducible, I would then consider giving you access
to a virtual machine on which I can reproduce it so that you can as well.
(In such case, please contact me off-list for details).

Thanks.