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From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Eric Sunshine <sunshine@sunshineco.com>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>,
	Git List <git@vger.kernel.org>
Subject: Re: [PATCH v2 3/5] tests: turn GPG, GPGSM and RFC1991 into lazy prereqs
Date: Sat, 28 Mar 2020 06:58:04 -0400
Message-ID: <20200328105804.GB639140@coredump.intra.peff.net> (raw)
In-Reply-To: <xmqq1rpdfpj5.fsf@gitster.c.googlers.com>

On Fri, Mar 27, 2020 at 02:37:02PM -0700, Junio C Hamano wrote:

> >>  And here are the "don'ts:"
> >>
> >>   - Don't exit() within a <script> part.
> >
> > We use 'exit 1' to terminate subshells[1] inside tests.
> >
> > [1]: https://lore.kernel.org/git/20150325052952.GE31924@peff.net/
> 
> Yeah, I gave two alternatives, but the third one could be
> 
>        test_expect_success 'git frotz on various versions' '
>            (
>              for revision in one two three
>              do
>                      echo "frotz $revision" >expect &&
>                      git frotz "$revision" >actual &&
>                      test_cmp expect actual || exit 1
>              done 
>            ) &&
>            test something else
>        '

We definitely shouldn't suggest _introducing_ a subshell for this
purpose. It's longer to write and less efficient.

> Anyway, that existing rule is not what I added in the rough draft
> under discussion.  To clarify it, we'd end up needing "unless A, B
> or C" that may be too complex.  I dunno.

I think the existing rule is OK. If you know enough to create the
situation where "exit 1" is useful, then you probably know enough to
know when to break that rule. That said, I'm not opposed to something
like:

  - Don't call "exit" within a <script> part, unless you're in a
    subshell. It will cause the whole to test script to exit (and fail).

or something.

-Peff

  reply index

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-23 13:09 [PATCH 0/2] Enable GPG in the Windows part of the CI/PR builds Johannes Schindelin via GitGitGadget
2020-03-23 13:09 ` [PATCH 1/2] tests(gpg): allow the gpg-agent to start on Windows Johannes Schindelin via GitGitGadget
2020-03-23 17:46   ` Junio C Hamano
2020-03-24 19:55     ` Johannes Schindelin
2020-03-24 20:59       ` Junio C Hamano
2020-03-24 22:26         ` Johannes Schindelin
2020-03-24 23:40           ` Junio C Hamano
2020-03-23 13:09 ` [PATCH 2/2] tests(gpg): increase verbosity to allow debugging Johannes Schindelin via GitGitGadget
2020-03-23 17:32   ` Jeff King
2020-03-23 18:04     ` Jeff King
2020-03-23 19:21       ` Junio C Hamano
2020-03-23 20:15         ` Jeff King
2020-03-23 21:28           ` Junio C Hamano
2020-03-23 21:31             ` Jeff King
2020-03-24 21:41               ` Johannes Schindelin
2020-03-24 22:05                 ` Jeff King
2020-03-24 22:25                   ` Johannes Schindelin
2020-03-24 22:33                     ` Jeff King
2020-03-25  5:41 ` [PATCH v2 0/5] Enable GPG in the Windows part of the CI/PR builds Johannes Schindelin via GitGitGadget
2020-03-25  5:41   ` [PATCH v2 1/5] tests(gpg): allow the gpg-agent to start on Windows Johannes Schindelin via GitGitGadget
2020-03-25  5:41   ` [PATCH v2 2/5] t/lib-gpg.sh: stop pretending to be a stand-alone script Johannes Schindelin via GitGitGadget
2020-03-26  8:21     ` Jeff King
2020-03-26 13:48       ` Johannes Schindelin
2020-03-26 19:31       ` Junio C Hamano
2020-03-25  5:41   ` [PATCH v2 3/5] tests: turn GPG, GPGSM and RFC1991 into lazy prereqs Johannes Schindelin via GitGitGadget
2020-03-25 17:25     ` Junio C Hamano
2020-03-26  8:35     ` Jeff King
2020-03-26 14:27       ` Johannes Schindelin
2020-03-27  9:10         ` Jeff King
2020-03-27 17:44           ` Junio C Hamano
2020-03-27 20:24             ` Eric Sunshine
2020-03-27 21:37               ` Junio C Hamano
2020-03-28 10:58                 ` Jeff King [this message]
2020-03-28 10:54             ` Jeff King
2020-03-28 23:49               ` [PATCH v2] t/README: suggest how to leave test early with failure Junio C Hamano
2020-03-29  7:23                 ` Eric Sunshine
2020-03-29 14:33                 ` Jeff King
2020-03-30 18:39           ` [PATCH v2 3/5] tests: turn GPG, GPGSM and RFC1991 into lazy prereqs Johannes Schindelin
2020-03-31  9:34             ` Jeff King
2020-03-25  5:41   ` [PATCH v2 4/5] tests: do not let lazy prereqs inside `test_expect_*` turn off tracing Johannes Schindelin via GitGitGadget
2020-03-25 17:23     ` Junio C Hamano
2020-03-26 13:45       ` Johannes Schindelin
2020-03-26  8:49     ` Jeff King
2020-03-26 14:34       ` Johannes Schindelin
2020-03-25  5:41   ` [PATCH v2 5/5] tests: increase the verbosity of the GPG-related prereqs Johannes Schindelin via GitGitGadget
2020-03-26  8:50     ` Jeff King
2020-03-26 14:36       ` Johannes Schindelin
2020-03-26 15:35   ` [PATCH v3 0/5] Enable GPG in the Windows part of the CI/PR builds Johannes Schindelin via GitGitGadget
2020-03-26 15:35     ` [PATCH v3 1/5] tests(gpg): allow the gpg-agent to start on Windows Johannes Schindelin via GitGitGadget
2020-03-26 15:35     ` [PATCH v3 2/5] t/lib-gpg.sh: stop pretending to be a stand-alone script Johannes Schindelin via GitGitGadget
2020-03-26 15:35     ` [PATCH v3 3/5] tests: do not let lazy prereqs inside `test_expect_*` turn off tracing Johannes Schindelin via GitGitGadget
2020-03-26 15:35     ` [PATCH v3 4/5] tests: turn GPG, GPGSM and RFC1991 into lazy prereqs Johannes Schindelin via GitGitGadget
2020-03-26 15:35     ` [PATCH v3 5/5] tests: increase the verbosity of the GPG-related prereqs Johannes Schindelin via GitGitGadget
2020-03-27  9:12     ` [PATCH v3 0/5] Enable GPG in the Windows part of the CI/PR builds Jeff King
2020-03-27 17:45       ` Junio C Hamano

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