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From: Eric Sunshine <sunshine@sunshineco.com>
To: Jonathan Chang <ttjtftx@gmail.com>
Cc: Christian Couder <christian.couder@gmail.com>,
	Thomas Gummerer <t.gummerer@gmail.com>, git <git@vger.kernel.org>
Subject: Re: [GSoC][PATCH v2 5/5] t0000-basic: use test_line_count instead of wc -l
Date: Sun, 10 Mar 2019 05:50:58 -0400
Message-ID: <CAPig+cSMZrQFrLXoO5KE1uonUxmnYHikr-e6GAq_n6vx3+sPJA@mail.gmail.com> (raw)
In-Reply-To: <20190310081106.64239-1-ttjtftx@gmail.com>

On Sun, Mar 10, 2019 at 4:11 AM Jonathan Chang <ttjtftx@gmail.com> wrote:
> Signed-off-by: Jonathan Chang <ttjtftx@gmail.com>
>
> diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
> @@ -1136,8 +1136,8 @@ test_expect_success 'git commit-tree omits duplicated parent in a commit' '
> -       numparent=$(sed -n -e "s/^parent //p" -e "/^author /q" actual | wc -l) &&
> -       test $numparent = 1
> +       sed -n -e "s/^parent //p" -e "/^author /q" actual | wc -l >numparent &&
> +       test_line_count = 1 numparent

This transformation makes no sense. The output of 'sed' is fed to 'wc
-l' whose output is redirected to file "numparent", which means that
the output file will end up containing a single line no matter how
many "parent" lines are matched in the input. Since test_line_count()
checks the number of lines in the named file, the test will succeed
unconditionally (which makes for a pretty poor test).

Also, the filename "numparent" doesn't do a good job of representing
what the file is expected to contain. A better name might be
"parents". So, a more correct transformation would be:

    sed -n -e "s/^parent //p" -e "/^author /q" actual >parents &&
    test_line_count = 1 parents

> @@ -1146,8 +1146,8 @@ test_expect_success 'update-index D/F conflict' '
> -       numpath0=$(wc -l <actual) &&
> -       test $numpath0 = 1
> +       wc -l <actual >numpath0 &&
> +       test_line_count = 1 numpath0

Same comment about bogus transformation. The entire sequence should
collapse to a single line:

    test_line_count = 1 actual

  reply	other threads:[~2019-03-10  9:51 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-09 15:45 [GSoC][PATCH] tests: avoid using pipes Jonathan Chang
2019-03-09 16:45 ` Thomas Gummerer
2019-03-10  8:07   ` [GSoC][PATCH v2 1/5] t0000-basic: fix an indentation error Jonathan Chang
2019-03-10  8:08     ` [GSoC][PATCH v2 2/5] t0000-basic: avoid using pipes Jonathan Chang
2019-03-10  8:09       ` [GSoC][PATCH v2 3/5] t0003-attributes: " Jonathan Chang
2019-03-10  8:10         ` [GSoC][PATCH v2 4/5] t0022-crlf-rename: " Jonathan Chang
2019-03-10  8:11           ` [GSoC][PATCH v2 5/5] t0000-basic: use test_line_count instead of wc -l Jonathan Chang
2019-03-10  9:50             ` Eric Sunshine [this message]
2019-03-11 16:10               ` ttjtftx
2019-03-10 10:03           ` [GSoC][PATCH v2 4/5] t0022-crlf-rename: avoid using pipes Eric Sunshine
     [not found]             ` <CAOAu_YJKNjGd3mw7K17ySQJeF4XxC+V00FFEYA7o593riEGN1g@mail.gmail.com>
2019-03-11 15:54               ` Fwd: " ttjtftx
2019-03-10 10:13         ` [GSoC][PATCH v2 3/5] t0003-attributes: " Eric Sunshine
2019-03-15  1:56           ` jonathan chang
2019-03-10 17:59     ` [GSoC][PATCH v2 1/5] t0000-basic: fix an indentation error Thomas Gummerer
2019-03-15  1:55       ` jonathan chang
2019-03-15 12:48         ` Christian Couder
2019-03-10  6:05 ` [GSoC][PATCH] tests: avoid using pipes Christian Couder
2019-03-10  8:27   ` ttjtftx
2019-03-10 15:05     ` Christian Couder
     [not found]       ` <CAOAu_YL8heWLSznRV8pjLkRZBOEth_7CSmftupx+4+SSx5yztw@mail.gmail.com>
2019-03-11 16:45         ` Fwd: " jonathan chang

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