D3444: tests: comprehensively test exit handling

[marmoute (Pierre-Yves David)]

Herald added a subscriber: mercurial-patches.
This revision now requires changes to proceed.
marmoute added a comment.
marmoute requested changes to this revision.


  Baymax does not catch stuff in `Accepted` state, but this diff is over 2 years old, so resubmit if still relevant.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D3444/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D3444

To: indygreg, #hg-reviewers, durin42, marmoute
Cc: marmoute, mercurial-patches, durin42, yuja, mercurial-devel