Re: [PATCH 2/4] t5310: test delta reuse with bitmaps

Stefan Beller [off-list ref] writes:

From some offline discussion, maybe we want to adapt a philosophy of

  Each patch needs to add a test, that fails when the patch
  is not applied, but succeeds when it is applied. This shows
  that _some_ code in the patch is exercised at least.

(and automatically/strongly enforce this going forwards; however
enforcing such a strict thing is hard, not sure how we'd do it.)

Some patches lack test, but when one comes with a test, I do revert
the code change and try to run the tests before I create a topic
branch for it, when I have time.

An enforcement mechanism may be good (e.g. submitGit could learn to
do that "does it come with a test" check followed by "let's see if
the new test fail without the change to the code part" before
allowing the patch to escape to the list), but