Re: [PATCH 2/4] t7502: demonstrate breakage with a commit message with trailing newlines

[Jonathan Nieder <jrnieder@gmail.com>]

Brandon Casey wrote:

> This test attempts to verify that a commit message supplied to 'git
> commit' via the -m switch was used in full as the commit message for a
> commit when --cleanup=verbatim was used.
[...]
> The test was able to complete successfully since internally, git appends
> two newlines to each string supplied via the -m switch.
[...]
> Mark this test as failing, since it is not handled correctly by git.
> As described above, git appends two extra newlines to every string
> supplied via -m.

Good catch.  This is an old one, triggered by a combination of

 v1.5.4-rc0~78^2~23 builtin-commit: resurrect behavior for multiple -m
                    options, 2007-11-11

and

 v1.5.4-rc2~3^2 Allow selection of different cleanup modes for commit
                messages, 2007-12-22

The patch makes sense and makes the test easier to read, so
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>

(Patch left unsnipped for reference.)

> Signed-off-by: Brandon Casey <drafnel@gmail.com>
> ---
>  t/t7502-commit.sh | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
> index 9040f8a..39e55f8 100755
> --- a/t/t7502-commit.sh
> +++ b/t/t7502-commit.sh
> @@ -177,10 +177,18 @@ test_expect_success 'verbose respects diff config' '
>  	git config --unset color.diff
>  '
>  
> +mesg_with_comment_and_newlines='
> +# text
> +
> +'
> +
> +test_expect_success 'prepare file with comment line and trailing newlines'  '
> +	printf "%s" "$mesg_with_comment_and_newlines" >expect
> +'
> +
>  test_expect_success 'cleanup commit messages (verbatim option,-t)' '
>  
>  	echo >>negative &&
> -	{ echo;echo "# text";echo; } >expect &&
>  	git commit --cleanup=verbatim --no-status -t expect -a &&
>  	git cat-file -p HEAD |sed -e "1,/^\$/d" >actual &&
>  	test_cmp expect actual
> @@ -196,10 +204,10 @@ test_expect_success 'cleanup commit messages (verbatim option,-F)' '
>  
>  '
>  
> -test_expect_success 'cleanup commit messages (verbatim option,-m)' '
> +test_expect_failure 'cleanup commit messages (verbatim option,-m)' '
>  
>  	echo >>negative &&
> -	git commit --cleanup=verbatim -m "$(cat expect)" -a &&
> +	git commit --cleanup=verbatim -m "$mesg_with_comment_and_newlines" -a &&
>  	git cat-file -p HEAD |sed -e "1,/^\$/d">actual &&
>  	test_cmp expect actual
>  
> --