From: Denton Liu <liu.denton@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Git Mailing List" <git@vger.kernel.org>,
"Eric Sunshine" <sunshine@sunshineco.com>,
"Johannes Sixt" <j6t@kdbg.org>,
"SZEDER Gábor" <szeder.dev@gmail.com>
Subject: Re: [PATCH v5 10/14] t5520: test single-line files by git with test_cmp
Date: Tue, 12 Nov 2019 15:06:37 -0800 [thread overview]
Message-ID: <20191112230637.GA61654@generichostname> (raw)
In-Reply-To: <xmqqh839fzbm.fsf@gitster-ct.c.googlers.com>
Hi Junio,
On Tue, Nov 12, 2019 at 02:17:33PM +0900, Junio C Hamano wrote:
> Denton Liu <liu.denton@gmail.com> writes:
>
> > In case an invocation of a Git command fails within the subshell, the
> > failure will be masked. Replace the subshell with a file-redirection and
> > a call to test_cmp.
>
> I.e.
>
> test "$(git cmd args)" = "expected-string"
>
> =>
>
> git cmd args >actual && echo "expected-string" >expect &&
> test_cmp expect actual
>
> which makes sense. It may break if expected-string begins with a
> dash or something silly like that, but a quick eyeballing over the
> patch tells me that we are safe there.
>
> Technically, "$(git cmd args)" used as a command line option of
> another command is called "command substitution", not "subshell".
> The proposed log message may need to be updated.
Okay, I'll send out a new reroll with some log message cleanup.
>
> > This change was done with the following GNU sed expressions:
> >
> > s/\(\s*\)test \([^ ]*\) = "$(\(git [^)]*\))"/\1echo \2 >expect \&\&\n\1\3 >actual \&\&\n\1test_cmp expect actual/
> > s/\(\s*\)test "$(\(git [^)]*\))" = \([^ ]*\)/\1echo \3 >expect \&\&\n\1\2 >actual \&\&\n\1test_cmp expect actual/
> >
> > A future patch will clean up situations where we have multiple duplicate
> > statements within a test case. This is done to keep this patch purely
> > mechanical.
>
> OK. One thing that worries me is if the existing tests are not
> expecting (no pun intended) to see 'expect' or 'actual' (e.g. if
> they somehow rely on output of "ls-files -u", we are now adding two
> untracked files in the working tree).
Do you mean `ls-files -o`? I think `-u` means "unmerged" while `-o`
means "others" (or "untracked"). This test doesn't have any instances of
`-o` being used.
> Another is if the git command
> is expected to produce nothing, possibly after failing, and the test
> is expecting to see an empty string---in such a case, the hiding of
> the exit status would have been intentional ;-) We'd want to be sure
> that we aren't breaking the tests like that by reading through the
> result of applying this patch.
>
> Since this is just a single file, I trust you have already done such
> sanity checking ;-)
Thanks for double-checking on me. I have, indeed, manually verified the
changes.
>
> The mechanical conversion procedure itself looks OK.
>
> Thanks.
next prev parent reply other threads:[~2019-11-12 23:06 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 23:16 [PATCH 00/12] t5520: various test cleanup Denton Liu
2019-10-17 23:16 ` [PATCH 01/12] t5520: improve test style Denton Liu
2019-10-17 23:16 ` [PATCH 02/12] t5520: use sq for test case names Denton Liu
2019-10-17 23:17 ` [PATCH 03/12] t5520: let sed open its own input Denton Liu
2019-10-17 23:17 ` [PATCH 04/12] t5520: replace test -f with test_path_is_file Denton Liu
2019-10-17 23:26 ` Eric Sunshine
2019-10-17 23:35 ` [PATCH 4.5/12] t5520: replace test -f with test-lib functions Denton Liu
2019-10-18 0:11 ` Eric Sunshine
2019-10-17 23:17 ` [PATCH 05/12] t5520: remove spaces after redirect operator Denton Liu
2019-10-17 23:17 ` [PATCH 06/12] t5520: use test_line_count where possible Denton Liu
2019-10-17 23:17 ` [PATCH 07/12] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-10-17 23:31 ` Eric Sunshine
2019-10-17 23:17 ` [PATCH 08/12] t5520: use test_cmp_rev where possible Denton Liu
2019-10-17 23:41 ` Eric Sunshine
2019-10-18 18:52 ` Denton Liu
2019-10-23 13:53 ` Eric Sunshine
2019-10-17 23:17 ` [PATCH 09/12] t5520: test single-line files by git with test_cmp Denton Liu
2019-10-17 23:49 ` Eric Sunshine
2019-10-17 23:17 ` [PATCH 10/12] t5520: don't put git in upstream of pipe Denton Liu
2019-10-17 23:17 ` [PATCH 11/12] t5520: replace subshell cat comparison with test_cmp Denton Liu
2019-10-17 23:17 ` [PATCH 12/12] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-10-18 22:10 ` [PATCH v2 00/15] t5520: various test cleanup Denton Liu
2019-10-18 22:04 ` [PATCH v2 01/15] t7408: replace `test_must_fail test_path_is_file` Denton Liu
2019-10-19 11:58 ` Johannes Sixt
2019-10-18 22:04 ` [PATCH v2 09/15] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-10-18 22:04 ` [PATCH v2 11/15] t5520: test single-line files by git with test_cmp Denton Liu
2019-10-18 22:10 ` [PATCH v2 02/15] t: teach test_cmp_rev to accept ! for not-equals Denton Liu
2019-10-18 22:45 ` SZEDER Gábor
2019-10-18 22:10 ` [PATCH v2 03/15] t5520: improve test style Denton Liu
2019-10-18 22:10 ` [PATCH v2 04/15] t5520: use sq for test case names Denton Liu
2019-10-18 22:10 ` [PATCH v2 05/15] t5520: let sed open its own input Denton Liu
2019-10-18 22:10 ` [PATCH v2 06/15] t5520: replace test -f with test-lib functions Denton Liu
2019-10-18 22:10 ` [PATCH v2 07/15] t5520: remove spaces after redirect operator Denton Liu
2019-10-18 22:10 ` [PATCH v2 08/15] t5520: use test_line_count where possible Denton Liu
2019-10-18 22:10 ` [PATCH v2 10/15] t5520: use test_cmp_rev " Denton Liu
2019-10-18 22:10 ` [PATCH v2 12/15] t5520: don't put git in upstream of pipe Denton Liu
2019-10-18 22:10 ` [PATCH v2 13/15] t5520: replace subshell cat comparison with test_cmp Denton Liu
2019-10-18 22:10 ` [PATCH v2 14/15] t5520: remove redundant lines in test cases Denton Liu
2019-10-18 22:10 ` [PATCH v2 15/15] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-10-18 22:14 ` [PATCH v2 00/15] t5520: various test cleanup Denton Liu
2019-10-22 10:19 ` [PATCH v3 00/14] " Denton Liu
2019-10-22 10:19 ` [PATCH v3 01/14] t: teach test_cmp_rev to accept ! for not-equals Denton Liu
2019-10-22 10:19 ` [PATCH v3 02/14] t5520: improve test style Denton Liu
2019-10-22 10:19 ` [PATCH v3 03/14] t5520: use sq for test case names Denton Liu
2019-10-22 10:20 ` [PATCH v3 04/14] t5520: let sed open its own input Denton Liu
2019-10-22 10:20 ` [PATCH v3 05/14] t5520: replace test -f with test-lib functions Denton Liu
2019-10-22 10:20 ` [PATCH v3 06/14] t5520: remove spaces after redirect operator Denton Liu
2019-10-22 10:20 ` [PATCH v3 07/14] t5520: use test_line_count where possible Denton Liu
2019-10-22 10:20 ` [PATCH v3 08/14] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-10-22 10:20 ` [PATCH v3 09/14] t5520: use test_cmp_rev where possible Denton Liu
2019-10-22 10:20 ` [PATCH v3 10/14] t5520: test single-line files by git with test_cmp Denton Liu
2019-10-22 10:20 ` [PATCH v3 11/14] t5520: don't put git in upstream of pipe Denton Liu
2019-10-22 10:20 ` [PATCH v3 12/14] t5520: replace subshell cat comparison with test_cmp Denton Liu
2019-10-22 10:20 ` [PATCH v3 13/14] t5520: remove redundant lines in test cases Denton Liu
2019-10-22 10:20 ` [PATCH v3 14/14] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-10-24 23:21 ` [PATCH v3 00/14] t5520: various test cleanup Denton Liu
2019-10-25 3:44 ` Junio C Hamano
2019-11-04 19:17 ` Denton Liu
2019-11-06 2:37 ` Junio C Hamano
2019-11-07 18:51 ` [PATCH v4 " Denton Liu
2019-11-07 18:51 ` [PATCH v4 01/14] t: teach test_cmp_rev to accept ! for not-equals Denton Liu
2019-11-08 3:24 ` Junio C Hamano
2019-11-08 8:23 ` Denton Liu
2019-11-08 12:49 ` Junio C Hamano
2019-11-08 21:19 ` Denton Liu
2019-11-10 6:58 ` Junio C Hamano
2019-11-07 18:51 ` [PATCH v4 02/14] t5520: improve test style Denton Liu
2019-11-07 18:51 ` [PATCH v4 03/14] t5520: use sq for test case names Denton Liu
2019-11-07 18:51 ` [PATCH v4 04/14] t5520: let sed open its own input Denton Liu
2019-11-07 18:51 ` [PATCH v4 05/14] t5520: replace test -f with test-lib functions Denton Liu
2019-11-07 18:51 ` [PATCH v4 06/14] t5520: remove spaces after redirect operator Denton Liu
2019-11-07 18:51 ` [PATCH v4 07/14] t5520: use test_line_count where possible Denton Liu
2019-11-07 18:51 ` [PATCH v4 08/14] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-11-07 18:51 ` [PATCH v4 09/14] t5520: use test_cmp_rev where possible Denton Liu
2019-11-07 18:51 ` [PATCH v4 10/14] t5520: test single-line files by git with test_cmp Denton Liu
2019-11-07 18:51 ` [PATCH v4 11/14] t5520: don't put git in upstream of pipe Denton Liu
2019-11-07 18:51 ` [PATCH v4 12/14] t5520: replace subshell cat comparison with test_cmp Denton Liu
2019-11-07 18:51 ` [PATCH v4 13/14] t5520: remove redundant lines in test cases Denton Liu
2019-11-07 18:51 ` [PATCH v4 14/14] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-11-12 0:13 ` [PATCH v5 00/14] t5520: various test cleanup Denton Liu
2019-11-12 0:13 ` [PATCH v5 01/14] t: teach test_cmp_rev to accept ! for not-equals Denton Liu
2019-11-12 6:52 ` Junio C Hamano
2019-11-12 19:38 ` [PATCH] fixup! " Denton Liu
2019-11-12 0:13 ` [PATCH v5 02/14] t5520: improve test style Denton Liu
2019-11-12 0:13 ` [PATCH v5 03/14] t5520: use sq for test case names Denton Liu
2019-11-12 0:13 ` [PATCH v5 04/14] t5520: let sed open its own input Denton Liu
2019-11-12 0:13 ` [PATCH v5 05/14] t5520: replace test -f with test-lib functions Denton Liu
2019-11-12 0:13 ` [PATCH v5 06/14] t5520: remove spaces after redirect operator Denton Liu
2019-11-12 0:13 ` [PATCH v5 07/14] t5520: use test_line_count where possible Denton Liu
2019-11-12 0:13 ` [PATCH v5 08/14] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-11-12 0:14 ` [PATCH v5 09/14] t5520: use test_cmp_rev where possible Denton Liu
2019-11-12 0:14 ` [PATCH v5 10/14] t5520: test single-line files by git with test_cmp Denton Liu
2019-11-12 5:17 ` Junio C Hamano
2019-11-12 23:06 ` Denton Liu [this message]
2019-11-12 0:14 ` [PATCH v5 11/14] t5520: don't put git in upstream of pipe Denton Liu
2019-11-12 0:14 ` [PATCH v5 12/14] t5520: replace subshell cat comparison with test_cmp Denton Liu
2019-11-12 0:14 ` [PATCH v5 13/14] t5520: remove redundant lines in test cases Denton Liu
2019-11-12 0:14 ` [PATCH v5 14/14] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-11-12 23:07 ` [PATCH v6 00/14] t5520: various test cleanup Denton Liu
2019-11-12 23:07 ` [PATCH v6 01/14] t: teach test_cmp_rev to accept ! for not-equals Denton Liu
2019-11-13 1:57 ` Junio C Hamano
2019-11-14 0:52 ` Denton Liu
2019-11-12 23:07 ` [PATCH v6 02/14] t5520: improve test style Denton Liu
2019-11-12 23:07 ` [PATCH v6 03/14] t5520: use sq for test case names Denton Liu
2019-11-12 23:07 ` [PATCH v6 04/14] t5520: let sed open its own input Denton Liu
2019-11-12 23:07 ` [PATCH v6 05/14] t5520: replace test -f with test-lib functions Denton Liu
2019-11-12 23:07 ` [PATCH v6 06/14] t5520: remove spaces after redirect operator Denton Liu
2019-11-12 23:08 ` [PATCH v6 07/14] t5520: use test_line_count where possible Denton Liu
2019-11-12 23:08 ` [PATCH v6 08/14] t5520: replace test -{n,z} with test-lib functions Denton Liu
2019-11-12 23:08 ` [PATCH v6 09/14] t5520: use test_cmp_rev where possible Denton Liu
2019-11-12 23:08 ` [PATCH v6 10/14] t5520: test single-line files by git with test_cmp Denton Liu
2019-11-12 23:08 ` [PATCH v6 11/14] t5520: don't put git in upstream of pipe Denton Liu
2019-11-12 23:08 ` [PATCH v6 12/14] t5520: replace $(cat ...) comparison with test_cmp Denton Liu
2019-11-12 23:08 ` [PATCH v6 13/14] t5520: remove redundant lines in test cases Denton Liu
2019-11-12 23:08 ` [PATCH v6 14/14] t5520: replace `! git` with `test_must_fail git` Denton Liu
2019-11-13 1:59 ` [PATCH v6 00/14] t5520: various test cleanup Junio C Hamano
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