Re: [PATCH] t5310-pack-bitmaps: fix bogus 'pack-objects to file can use bitmap' test

[Andrei Rybak <rybak.a.v@gmail.com>]

On 14/08/18 13:47, SZEDER Gábor wrote:
> ... both
> invocations produce empty 'pack{a,b}.objects' files, and the
> subsequent 'test_cmp' happily finds those two empty files identical.

Is test_cmp ever used for empty files? Would it make sense for
test_cmp to issue warning when an empty file is being compared?

> ---
>  t/t5310-pack-bitmaps.sh | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh
> index 6ee4d3f2d9..557bd0d0c0 100755
> --- a/t/t5310-pack-bitmaps.sh
> +++ b/t/t5310-pack-bitmaps.sh
> @@ -9,7 +9,8 @@ objpath () {
>  
>  # show objects present in pack ($1 should be associated *.idx)
>  list_packed_objects () {
> -	git show-index <"$1" | cut -d' ' -f2
> +	git show-index <"$1" >object-list &&
> +	cut -d' ' -f2 object-list
>  }
>  
>  # has_any pattern-file content-file
> @@ -204,8 +205,8 @@ test_expect_success 'pack-objects to file can use bitmap' '
>  	# verify equivalent packs are generated with/without using bitmap index
>  	packasha1=$(git pack-objects --no-use-bitmap-index --all packa </dev/null) &&
>  	packbsha1=$(git pack-objects --use-bitmap-index --all packb </dev/null) &&
> -	list_packed_objects <packa-$packasha1.idx >packa.objects &&
> -	list_packed_objects <packb-$packbsha1.idx >packb.objects &&
> +	list_packed_objects packa-$packasha1.idx >packa.objects &&
> +	list_packed_objects packb-$packbsha1.idx >packb.objects &&
>  	test_cmp packa.objects packb.objects
>  '
>  
>