[PATCH 0/9] test: (hopefully) better test prerequisites

[Dmitry Kurochkin]

Hi all.

The following patch series is an attempt to introduce proper
dependencies for external binaries in a less intrusive way than
[1].  The primary aim was to avoid changing every subtest that
uses external binaries.

There are still failing tests if a dependency is
missing (e.g. "Verify that sent messages are
saved/searchable (via FCC)" fails if there is no emacs).  It
happens because such tests depend on others which are skipped.
This issues are not addressed by this patch series.

If others do like the approach and it is pushed, I will work on
updating tests that use the old style prerequisites (atomicity).

A careful review is needed!

Regards,
  Dmitry

[1] id:"1321454035-22023-1-git-send-email-schnouki at schnouki.net"