From: Derrick Stolee <derrickstolee@github.com>
To: Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>,
git@vger.kernel.org
Cc: gitster@pobox.com, chakrabortyabhradeep79@gmail.com
Subject: Re: [PATCH] test-lib-functions: fix test_subcommand_inexact
Date: Tue, 22 Mar 2022 11:17:51 -0400 [thread overview]
Message-ID: <540936ba-7287-77fa-9cee-e257ed3c119d@github.com> (raw)
In-Reply-To: <pull.1185.git.1647894845421.gitgitgadget@gmail.com>
On 3/21/22 4:34 PM, Derrick Stolee via GitGitGadget wrote:
> From: Derrick Stolee <derrickstolee@github.com>
>
> The implementation of test_subcommand_inexact() was originally
> introduced in e4d0c11c0 (repack: respect kept objects with '--write-midx
> -b', 2021-12-20) with the intention to allow finding a subcommand based
> on an initial set of arguments. The inexactness was intended as a way to
> allow flexible options beyond that initial set, as opposed to
> test_subcommand() which requires that the full list of options is
> provided in its entirety.
>
> The implementation began by copying test_subcommand() and replaced the
> repeated argument 'printf' statement to append ".*" instead of "," to
> each argument. This has a few drawbacks:
>
> 1. Most importantly, this repeats the use of ".*" within 'expr', so the
> inexact match is even more flexible than expected. It allows the list
> of arguments to exist as a subsequence (with any other items included
> between those arguments).
>
> 2. The line 'expr="$(expr%,}"' that previously removed a trailing comma
> now no longer does anything, since the string ends with ".*".
>
> Both of these issues are fixed by keeping the addition of the comma in
> the printf statement, then adding ".*" after stripping out the trailing
> comma.
>
> All existing tests continue to pass with this change, since none of them
> were taking advantage of this unintended flexibility.
For some reason, I thought I had run all tests on my machine to
passing, but I was wrong.
Instead, t7700-repack.sh fails because of this test:
test_expect_success '--write-midx -b packs non-kept objects' '
GIT_TRACE2_EVENT="$(pwd)/trace.txt" \
git repack --write-midx -a -b &&
test_subcommand_inexact git pack-objects --honor-pack-keep <trace.txt
'
Specifically, "git pack-objects" has several options before
"--honor-pack-keep" including the temporary pack name and
a "--keep-true-parents" flag.
So, this patch is incorrect about keeping things working. The
options are:
1. Keep the repeated ".*" and be clear about the expectations.
(This could drop the "remove trailing comma" line.)
2. Find another way to test this --write-midx behavior while
keeping the stricter test_subcommand_inexact helper.
3. Something else???
Thanks,
-Stolee
next prev parent reply other threads:[~2022-03-22 15:17 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-21 20:34 [PATCH] test-lib-functions: fix test_subcommand_inexact Derrick Stolee via GitGitGadget
2022-03-22 15:17 ` Derrick Stolee [this message]
2022-03-23 14:53 ` Junio C Hamano
2022-03-23 14:55 ` Derrick Stolee
2022-03-23 21:45 ` Taylor Blau
2022-03-23 23:10 ` Junio C Hamano
2022-03-24 15:42 ` Derrick Stolee
2022-03-24 16:02 ` Taylor Blau
2022-03-24 16:39 ` Derrick Stolee
2022-03-24 16:38 ` Junio C Hamano
2022-03-24 18:10 ` Abhradeep Chakraborty
2022-03-25 0:33 ` Junio C Hamano
2022-03-25 8:13 ` Abhradeep Chakraborty
2022-03-24 18:34 ` [PATCH v2 0/2] " Derrick Stolee via GitGitGadget
2022-03-24 18:34 ` [PATCH v2 1/2] t7700: check post-condition in kept-pack test Derrick Stolee via GitGitGadget
2022-03-24 18:58 ` Taylor Blau
2022-03-25 13:55 ` Derrick Stolee
2022-03-25 17:07 ` Junio C Hamano
2022-03-25 17:23 ` Derrick Stolee
2022-03-25 17:36 ` Taylor Blau
2022-03-25 18:22 ` Junio C Hamano
2022-03-24 18:34 ` [PATCH v2 2/2] test-lib-functions: fix test_subcommand_inexact Derrick Stolee via GitGitGadget
2022-03-24 18:49 ` Taylor Blau
2022-03-24 20:48 ` Junio C Hamano
2022-03-25 14:03 ` Derrick Stolee
2022-03-25 17:25 ` Junio C Hamano
2022-03-25 19:02 ` [PATCH v3 0/2] " Derrick Stolee via GitGitGadget
2022-03-25 19:02 ` [PATCH v3 1/2] t7700: check post-condition in kept-pack test Derrick Stolee via GitGitGadget
2022-03-25 19:02 ` [PATCH v3 2/2] test-lib-functions: remove test_subcommand_inexact Derrick Stolee via GitGitGadget
2022-03-30 2:44 ` [PATCH v3 0/2] test-lib-functions: fix test_subcommand_inexact Taylor Blau
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