Re: [RFC PATCH v2 05/11] notes: clean up t3301

[Junio C Hamano <gitster@pobox.com>]

Thomas Rast <trast@student.ethz.ch> writes:

> The existing tests handrolled test_commit, so use that instead.
>
> Unfortunately this changes all sha1's.  Since we're not supposed to
> unneccessarily rely on them anyway, introduce a small helper that
> filters out the commit headers before comparing, and remove them from
> the expected outputs.
>
> Signed-off-by: Thomas Rast <trast@student.ethz.ch>
> ---
>  t/t3301-notes.sh |  141 ++++++++++++++++++------------------------------------
>  1 files changed, 46 insertions(+), 95 deletions(-)
>
> diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
> index 90178f9..3fec7ae 100755
> --- a/t/t3301-notes.sh
> +++ b/t/t3301-notes.sh
> @@ -7,6 +7,15 @@ test_description='Test commit notes'
>  
>  . ./test-lib.sh
>  
> +strip_header () {
> +	sed -i '/^\(commit\|tree\|parent\) /d' "$@"
> +}

I do not think -i is portable.  Neither the use of ERE elements by quoting
them with backslash (which is a non-POSIX GNU extension IIRC).

You use this only for one side of test_cmp, so you should be able to do
something like:

	strip_then_cmp () {
        	sed -e "/^[ctp][a-z]* $x40$/d" "$2" |
                test_cmp "$1" -
	}

But because you are using test_commit to freeze the time and get stable
output, and because you still have something like this anyway:

>  cat > expect << EOF
> -c18dc024e14f08d18d14eea0d747ff692d66d6a3 1584215f1d29c65e99c6c6848626553fdd07fd75
> -c9c6af7f78bc47490dbf3e822cf2f3c24d4b9061 268048bfb8a1fb38e703baceb8ab235421bf80c5
> +c9c6af7f78bc47490dbf3e822cf2f3c24d4b9061 7a4ca6ee52a974a66cbaa78e33214535dff1d691
> +c18dc024e14f08d18d14eea0d747ff692d66d6a3 d07d62e5208f22eb5695e7eb47667dc8b9860290
>  EOF

it might be easier to do without such a niceness.