checkbox-ng traceback when resuming on server

[Jeff Lane ]

Running tests on 18.04.2 using latest stable release of checkbox

ubuntu@s1lp10-jefflane:~$ dpkg -l |grep checkbox
ii checkbox-ng 1.3.0~ppa~ubuntu18.04.1 all CheckBoxNG test runner
ii plainbox-provider-checkbox 0.47.0~ppa~ubuntu18.04.1 s390x CheckBox provider for PlainBox
ii python3-checkbox-ng 1.3.0~ppa~ubuntu18.04.1 all CheckBoxNG test runner (Python 3 library)
ii python3-checkbox-support 0.40.0~ppa~ubuntu18.04.1 all collection of Python modules used by PlainBox providers
ubuntu@s1lp10-jefflane:~$ dpkg -l |grep plainbox
ii plainbox-insecure-policy 1.3.0~ppa~ubuntu18.04.1 all policykit policy required to use CheckBoxNG (insecure version)
ii plainbox-provider-certification-server 0.41.0~ppa~ubuntu18.04.1 all Server Certification provider for Plainbox
ii plainbox-provider-checkbox 0.47.0~ppa~ubuntu18.04.1 s390x CheckBox provider for PlainBox
ii plainbox-provider-resource-generic 0.39.0~ppa~ubuntu18.04.1 s390x CheckBox generic resource jobs provider

Had to ctrl-c out of a test run and restart because I forgot to run this in screen, which is necessary to account for the network tests that will disable unused network devices breaking ssh sessions.

When I chose to resume the session on restart, it dumped a traceback because it's looking for
/home/ubuntu/.config/autostart/com.canonical:checkbox-cli.desktop

The Traceback is giving a Permission Denied error for some reason, but in fact, the file does not exist, there is no autostart directory in ~/.config

ubuntu@s1lp10-jefflane:~$ certify-18.04
=========================[ Resume Incomplete Session ]==========================
There is 1 incomplete session that might be resumed
Do you want to resume session 'certify-18.04-2019-03-15T21.07.37'?
  r => resume this session
  n => next session
  c => create new session
  d => delete old sessions
[rncd]: r
ERROR:plainbox.bug:Undeclared exception PermissionError raised from resume_session

                        Application Malfunction Detected

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/guacamole/core.py", line 248, in eat
    return self._dispatch()
  File "/usr/lib/python3/dist-packages/guacamole/core.py", line 298, in _dispatch
    result = ingredient.dispatch(self.context)
  File "/usr/lib/python3/dist-packages/guacamole/ingredients/cmdtree.py", line 152, in dispatch
    return self._dispatch(context, 0)
  File "/usr/lib/python3/dist-packages/guacamole/ingredients/cmdtree.py", line 179, in _dispatch
    return self._dispatch_None(context, level, retval, command)
  File "/usr/lib/python3/dist-packages/guacamole/ingredients/cmdtree.py", line 208, in _dispatch_None
    return self._dispatch(context, level + 1)
  File "/usr/lib/python3/dist-packages/guacamole/ingredients/cmdtree.py", line 165, in _dispatch
    retval = command.invoked(context)
  File "/usr/lib/python3/dist-packages/checkbox_ng/launcher/subcommands.py", line 248, in invoked
    if not self._maybe_resume_session():
  File "/usr/lib/python3/dist-packages/checkbox_ng/launcher/subcommands.py", line 348, in _maybe_resume_session
    return self._run_resume_ui_loop(resume_candidates)
  File "/usr/lib/python3/dist-packages/checkbox_ng/launcher/subcommands.py", line 365, in _run_resume_ui_loop
    self._resume_session(candidate)
  File "/usr/lib/python3/dist-packages/checkbox_ng/launcher/subcommands.py", line 373, in _resume_session
    metadata = self.ctx.sa.resume_session(session.id)
  File "/usr/lib/python3/dist-packages/plainbox/impl/decorators.py", line 142, in wrapper
    raise exc
  File "/usr/lib/python3/dist-packages/plainbox/impl/decorators.py", line 136, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/plainbox/impl/session/assistant.py", line 680, in resume_session
    self._restart_strategy.diffuse_application_restart(self._app_id)
  File "/usr/lib/python3/dist-packages/plainbox/impl/session/restart.py", line 123, in diffuse_application_restart
    os.remove(filename)
PermissionError: [Errno 13] Permission denied: '/home/ubuntu/.config/autostart/com.canonical:checkbox-cli.desktop'

  Please report a bug including the information from the paragraph above. To
  report the bug visit https://bugs.launchpad.net/checkbox-ng/+filebug

  We are sorry for the inconvenience!

[Sylvain Pineau (sylvain-pineau)]

Might be fixed by https://code.launchpad.net/~sylvain-pineau/checkbox-ng/+git/checkbox-ng/+merge/381568

Please reopen if it still happening.