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From: Stefan Beller <sbeller@google.com>
To: Jeff King <peff@peff.net>
Cc: Junio C Hamano <gitster@pobox.com>, "git@vger.kernel.org" <git@vger.kernel.org>, Orgad Shaneh <orgads@gmail.com>
Subject: Re: [PATCH 3/5] t4015: test the output of "diff --color-moved -b"
Date: Thu, 19 Oct 2017 14:03:54 -0700
Message-ID: <CAGZ79kaszx26d8D0UrEj948Fam5b41hQWXcpC0V-5Rrom6M15w@mail.gmail.com> (raw)
In-Reply-To: <20171019202630.plnm6g4x3cuggxoj@sigill.intra.peff.net>

On Thu, Oct 19, 2017 at 1:26 PM, Jeff King <peff@peff.net> wrote:
> Commit fa5ba2c1dd (diff: fix infinite loop with
> --color-moved --ignore-space-change, 2017-10-12) added a
> test to make sure that "--color-moved -b" doesn't run
> forever, but the test in question doesn't actually have any
> moved lines in it.
>
> Let's scrap that test and add a variant of the existing
> "--color-moved -w" test, but this time we'll check that we
> find the move with whitespace changes, but not arbitrary
> whitespace additions.
>
> Signed-off-by: Jeff King <peff@peff.net>
> ---

> +
> +       git diff HEAD --no-renames --color-moved --color |
> +               grep -v "index" |
> +               test_decode_color >actual &&

The -v index grep makes it future proof (for a new hash)!
I like that. What I do not like is the pipe at the end of
git-diff as we certainly want to inspect the return code
(or for a segfault ;)

> +       git diff HEAD --no-renames -b --color-moved --color |
> +               grep -v "index" |
> +               test_decode_color >actual &&

Do we need (or rather want) to give --color additionally,
instead of having --color-moved imply it? I guess this is
extra carefulness from the "color always" series?


>  test_expect_success 'clean up whitespace-test colors' '
>         git config --unset color.diff.oldMoved &&
>         git config --unset color.diff.newMoved
> @@ -1549,13 +1613,4 @@ test_expect_success 'move detection with submodules' '
>         test_cmp expect decoded_actual
>  '
>
> -test_expect_success 'move detection with whitespace changes' '
> -       test_when_finished "git reset --hard" &&
> -       test_seq 10 >test &&
> -       git add test &&
> -       sed s/3/42/ <test >test.tmp &&
> -       mv test.tmp test &&
> -       git -c diff.colormoved diff --ignore-space-change -- test
> -'

Ok, this is covered above in testing for the unchanged lines (1-5)

  reply index

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-12 19:53 Out of memory with diff.colormoved enabled Orgad Shaneh
2017-10-12 20:05 ` Jeff King
2017-10-12 22:39   ` Stefan Beller
2017-10-12 23:33   ` [PATCH] diff.c: increment buffer pointer in all code path Stefan Beller
2017-10-13  0:18     ` Jeff King
2017-10-13  0:20       ` Jeff King
2017-10-13  0:24         ` Stefan Beller
2017-10-19  5:04         ` Jeff King
2017-10-19  5:24           ` Jeff King
2017-10-19  5:30             ` Junio C Hamano
2017-10-19  5:32               ` Junio C Hamano
2017-10-19  5:32                 ` Jeff King
2017-10-19  5:42               ` Jeff King
2017-10-19 19:55                 ` Stefan Beller
2017-10-19 20:23                 ` [PATCH 0/5] fix "diff --color-moved --ignore-space-at-eol" Jeff King
2017-10-19 20:24                   ` [PATCH 1/5] t4015: refactor --color-moved whitespace test Jeff King
2017-10-19 20:56                     ` Stefan Beller
2017-10-19 21:10                       ` Jeff King
2017-10-19 20:25                   ` [PATCH 2/5] t4015: check "negative" case for "-w --color-moved" Jeff King
2017-10-19 20:54                     ` Stefan Beller
2017-10-19 20:26                   ` [PATCH 3/5] t4015: test the output of "diff --color-moved -b" Jeff King
2017-10-19 21:03                     ` Stefan Beller [this message]
2017-10-19 21:14                       ` Jeff King
2017-10-19 20:29                   ` [PATCH 4/5] diff: fix whitespace-skipping with --color-moved Jeff King
2017-10-19 21:15                     ` Stefan Beller
2017-10-19 21:19                       ` Jeff King
2017-10-20  7:23                     ` Simon Ruderich
2017-10-20 22:37                       ` Jeff King
2017-10-19 20:31                   ` [PATCH 5/5] diff: handle NULs in get_string_hash() Jeff King
2017-10-19 21:31                     ` Stefan Beller
2017-10-19 21:39                       ` Jeff King
2017-10-19 21:50                         ` Stefan Beller
2017-10-19 19:53             ` [PATCH] diff.c: increment buffer pointer in all code path Stefan Beller
2017-10-19 19:55               ` Jeff King

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