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Re: [PATCH v3] t6030: add test for git bisect skip started with --term* arguments

From
Eric Sunshine <sunshine@sunshineco.com>
Date
Apr 28, 2021, 16:55 UTC
Message-ID
<CAPig+cSNWdUmPCQiErm41fzvDFRdegfkExUveYYN61Mrj_X2gQ@mail.gmail.com>
In-Reply-To
<20210428113805.109528-1-bagasdotme@gmail.com>
On Wed, Apr 28, 2021 at 7:39 AM Bagas Sanjaya <bagasdotme@gmail.com> wrote:
Show 18 quoted lines
> Trygve Aaberge reported git bisect breakage when the bisection
> is started with --term* arguments (--term-new and --term-old).
>
> For example, suppose that we have repository with 10 commits, and we
> start the bisection from HEAD to first commit (HEAD~9) with:
>
>   $ git bisect start --term-new=fixed --term-old=unfixed HEAD HEAD~9
>
> The bisection then stopped at HEAD~5 (fifth commit), and we choose
> to skip (git bisect skip). The HEAD should now at HEAD~4 (sixth commit).
> In the breakage, however, the HEAD after skipping stayed at HEAD~5
> (not changed).
>
> The breakage is caused by forgetting to read '.git/BISECT_TERMS' during
> implementation of `'bisect skip' subcommand in C.
>
> Let's add the test to catch the breakage. Now that the corresponding
> fix had been integrated, flip the switch to test_expect_success.

The final sentence about flipping the switch should probably be dropped since this patch now introduces the new test in its "success" state.

Show 13 quoted lines
> Reported-by: Trygve Aaberge <trygveaa@gmail.com>
> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
> ---
>
>  Changes from v2 [1]:
>    * remove double quotes inside test name
>    * double-quote HASH_SKIPPED_FROM and HASH_SKIPPED_TO in the
>      test comparison line
>    * rename test name to be simpler
>    * commit message now includes proper explanation why git bisect skip
>      is currently broken
>    * because the fix to the breakage had just been landed on seen, flip
>      the switch to test_expect_success.

Here in the patch commentary, it does indeed make sense to mention that you flipped the state from "failure" to "success" between iterations of the patch.

Previous: Bagas Sanjaya
Message 2 of 2 in “t6030: add test for git bisect skip started with --term* arguments”
  1. t6030: add test for git bisect skip started with --term* argumentsBagas Sanjaya, Apr 28, 2021
  2. Eric SunshineApr 28, 2021

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