WIP/RFC: add failing test_capture_with_testdir_parseconfig [ci skip]

[blueyed]

Fails with:

OSError: reading from stdin while output is captured

Also tests #4330 (i.e. fails
without #4330 earlier already).

Closes #4329.

[blueyed]

@nicoddemus
Seems to be related to capturing being done, although it should stay resumed.

[blueyed]

This is also a problem when trying to step over:

> …/src/_pytest/pytester.py(882)

 873         def runpytest_inprocess(self, *args, **kwargs):                                                                                                                  
 874             """Return result of running pytest in-process, providing a similar                                                                                           
 875             interface to what self.runpytest() provides.                                                                                                                 
 876                                                                                                                                                                          
 877             """                                                                                                                                                          
 878             if kwargs.get("syspathinsert"):                                                                                                                              
 879                 self.syspathinsert()                                                                                                                                     
 880             now = time.time()                                                                                                                                            
 881             capture = MultiCapture(Capture=SysCapture)                                                                                                                   
 882  ->         capture.start_capturing()                                                                                                                                    

I guess MultiCapture.start_capturing should honor some global state (which
remembers if there is capturing in place already), or the debugging plugin
needs to be able to interfere when capturing is suspended via it already.

Maybe this should use the CaptureManager in the first place here, instead of
MultiCapture directly?

[blueyed]

Failure can be seen at https://travis-ci.org/pytest-dev/pytest/jobs/454881133#L539.

@nicoddemus
Any pointers/ideas how to fix this?
Should there be an internal level/stacking for this?

[nicoddemus]

Hi @blueyed,

It has been a long time since it has last seen activity, plus we have made sweeping changes on master to drop Python 2.7 and 3.4 support, so this PR has some conflicts which require attention.

In order to clear up our queue and let us focus on the active PRs, I'm closing this PR for now.

Please don't consider this a rejection of your PR, we just want to get this out of sight until you have the time to tackle this again. If you get around to work on this in the future, please don't hesitate in re-opening this!

Thanks for your work, the team definitely appreciates it!