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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: Brandon Casey <casey@nrlssc.navy.mil>,
	jaredhance@gmail.com, git@vger.kernel.org,
	Brandon Casey <drafnel@gmail.com>
Subject: Re: [PATCH] t/README: clarify test_must_fail description
Date: Tue, 20 Jul 2010 18:06:58 +0000	[thread overview]
Message-ID: <AANLkTinLOLzmA9XSDYKsKwxV1Byvp-hd82JbjuSTNWb3@mail.gmail.com> (raw)
In-Reply-To: <7veieym3sh.fsf@alter.siamese.dyndns.org>

On Tue, Jul 20, 2010 at 18:00, Junio C Hamano <gitster@pobox.com> wrote:

>    Run a git command and ensure it fails in a controlled way.  Use
>    this instead of "! <git-command>".  When git-command dies due to a
>    segfault, test_must_fail diagnoses it as an error; "! <git-command>"
>    treats it as just another expected failure. letting such a bug go
>    unnoticed.

To add to that:

    Don't use test_must_fail to negate the return values of commands
    on the system like grep, sed etc. If we can't trust that the core
    utilities won't randomly segfault we might as well die horribly.

  reply	other threads:[~2010-07-20 18:07 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-20 15:24 [PATCH] t/t3700: convert two uses of negation operator '!' to use test_must_fail Brandon Casey
2010-07-20 15:55 ` Ævar Arnfjörð Bjarmason
2010-07-20 16:32   ` Brandon Casey
2010-07-20 16:38     ` Jared Hance
2010-07-20 17:17       ` [PATCH] t/README: clarify test_must_fail description Brandon Casey
2010-07-20 18:00         ` Junio C Hamano
2010-07-20 18:06           ` Ævar Arnfjörð Bjarmason [this message]
2010-07-20 18:14             ` Jared Hance
2010-07-20 19:09               ` [PATCH] Convert "! git" to "test_must_fail" git Jared Hance
2010-07-20 19:42                 ` Brandon Casey
2010-07-20 19:48                   ` Jonathan Nieder
2010-07-20 19:59                     ` Brandon Casey
2010-07-20 23:18                   ` [PATCH v2] Convert "! git" to "test_must_fail git" Jared Hance
2010-07-20 18:34             ` [PATCH] t/README: clarify test_must_fail description Junio C Hamano
2010-07-20 18:43               ` Ævar Arnfjörð Bjarmason
2010-07-20 19:16                 ` Jonathan Nieder
2010-07-20 20:49                   ` Ævar Arnfjörð Bjarmason
2010-07-20 21:12                     ` Brandon Casey
2010-07-20 21:25                       ` Ævar Arnfjörð Bjarmason
2010-07-20 21:55                       ` [PATCH] t/: work around one-shot variable assignment with test_must_fail Brandon Casey
2010-07-20 23:19                         ` Erick Mattos
     [not found]                           ` <20100721000823.GD4282@burratino>
     [not found]                             ` <AANLkTinlXsbp0NdhmqvlrmBBqGuGOIkh6PzGYFnk05qv@mail.gmail.com>
     [not found]                               ` <20100721141140.GA12123@burratino>
     [not found]                                 ` <AANLkTinhyFD4RhLLxS-jj-oX5VWqGyy7AiXJ3VJlcU2W@mail.gmail.com>
2010-07-21 15:23                                   ` [PATCH] gitweb: clarify search results page when no matching commit found Jonathan Nieder
2010-07-21 17:51                                     ` Jakub Narebski
2010-07-21 19:50                                       ` [PATCH v2] " Jonathan Nieder
2010-07-21 15:32                           ` [PATCH] t/: work around one-shot variable assignment with test_must_fail Brandon Casey
2010-07-22  0:28                             ` Erick Mattos
2010-07-20 23:44                         ` Ævar Arnfjörð Bjarmason
2010-07-20 23:45                           ` Ævar Arnfjörð Bjarmason
2010-07-21  0:01                           ` Jonathan Nieder
2010-07-21  0:09                             ` Ævar Arnfjörð Bjarmason
2010-07-21  0:14                               ` Jonathan Nieder
2010-07-21  0:34                                 ` Ævar Arnfjörð Bjarmason
2010-07-21  1:05                                   ` git name-rev for fun and profit (Re: [PATCH] t/: work around one-shot variable assignment with test_must_fail) Jonathan Nieder
2010-07-21 11:32                                     ` Ævar Arnfjörð Bjarmason
2010-07-21 19:29                         ` [PATCH] t/: work around one-shot variable assignment with test_must_fail Junio C Hamano
2010-07-22  0:32                           ` Erick Mattos
2010-07-22 18:21                           ` Brandon Casey
2010-07-20 18:19           ` [PATCH] t/README: clarify test_must_fail description Brandon Casey
2010-07-20 17:52       ` [PATCH] t/t3700: convert two uses of negation operator '!' to use test_must_fail Ævar Arnfjörð Bjarmason
2010-07-20 18:25     ` Ævar Arnfjörð Bjarmason

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