[PATCH] hexdump: add test to verify -n4 -e '"%u"'

[Steffen Nurpmeso]

Natanael Copa wrote in
 <20241023152936.658a4fdd at ncopa-desktop>:
 |On Wed, 23 Oct 2024 15:11:20 +0200
 |Natanael Copa <ncopa at alpinelinux.org> wrote:
 |
 |> Add test that uncovers bug introduced in busybox 1.37.0
 |> ---
 |>  testsuite/hexdump.tests | 7 +++++++
 |>  1 file changed, 7 insertions(+)
 |> 
 |> diff --git a/testsuite/hexdump.tests b/testsuite/hexdump.tests
 |> index be0379cfc..b933cd1a8 100755
 |> --- a/testsuite/hexdump.tests
 |> +++ b/testsuite/hexdump.tests
 |> @@ -82,4 +82,11 @@ testing "hexdump -e /2 %d" \
 |>  "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"\
 |>  "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"\
 |>  
 |> +
 |> +testing "hexdump -n4 -e '%u'" \
 |> +   "hexdump -n4 -e '\"%u\"'" \
 |> +   "12345678" \
 |> +   "" \
 |> +   "\x4e\x61\xbc\x00AAAA"
 |> +
 |>  exit $FAILCOUNT
 |
 |I git bisected the bug to:
 |
 |commit e2287f99fe6f21fd6435ad04340170ad4ba5f6b3
 |Author: Denys Vlasenko <vda.linux at googlemail.com>
 |Date:   Thu May 25 17:39:28 2023 +0200
 |
 |    od: for !DESKTOP, match output more closely to GNU coreutils 9.1, \
 |    implement -s
 |    
 |    Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>

Hm, but i get the same strange result of the thing you had posted
to AlpineLinux with an elder version:

  $ hexdump -s16 -n4 -e '"%u"' test;echo
  1094795585
  $ busybox.static hexdump -s16 -n4 -e '"%u"' test;echo
  65
  $ busybox.static | sed '2,$d'
  BusyBox v1.37.0.git (2024-04-20 23:25:28 CEST) multi-call binary

(I still carry along and use
  * a32cb85371 (refs/heads/ashmonitor) ash: Allow enabling job control without a tty in non-interactive mode..
  | * 77f67d16e6 (refs/heads/sharith-v5) shell: exchange Dijkstra $(( )) evaluator..)

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)