D1871: test: add a test for directacces generic write message

[yuja (Yuya Nishihara)]

yuja requested changes to this revision.
yuja added a comment.
This revision now requires changes to proceed.


  I'm skeptical if the generic write message will be actually used, so let's
  revisit this later.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D1871

To: lothiraldan, #hg-reviewers, yuja
Cc: yuja, mercurial-devel