[PATCH v3 3/3] This patch adds two test cases for the -z and -Z options.

[Dmitry V. Levin]

On Thu, Apr 25, 2019 at 04:23:19PM +0200, burkhard.kohl at intel.com wrote:
> From: Burkhard Kohl <burkhard.kohl at intel.com>
> 
> Signed-off-by: Burkhard Kohl <burkhard.kohl at intel.com>
> Co-Authored-by: Paul Chaignon <paul.chaignon at gmail.com>
> ---
>  tests/.gitignore   |  2 ++
>  tests/Makefile.am  |  2 ++
>  tests/gen_tests.in |  2 ++
>  tests/strace-Z.c   | 40 ++++++++++++++++++++++++++++++++++++++++
>  tests/strace-z.c   | 40 ++++++++++++++++++++++++++++++++++++++++
>  5 files changed, 86 insertions(+)
>  create mode 100644 tests/strace-Z.c
>  create mode 100644 tests/strace-z.c
> 
> diff --git a/tests/.gitignore b/tests/.gitignore
> index 5a601641..25ad96b9 100644
> --- a/tests/.gitignore
> +++ b/tests/.gitignore
> @@ -554,6 +554,8 @@ stat64
>  statfs
>  statfs64
>  statx
> +strace-z
> +strace-Z
>  swap
>  sxetmask
>  symlink
> diff --git a/tests/Makefile.am b/tests/Makefile.am
> index 9e99aff2..633a12e2 100644
> --- a/tests/Makefile.am
> +++ b/tests/Makefile.am
> @@ -157,6 +157,8 @@ check_PROGRAMS = $(PURE_EXECUTABLES) \
>  	sleep \
>  	stack-fcall \
>  	stack-fcall-mangled \
> +	strace-z \
> +	strace-Z \
>  	threads-execve \
>  	unblock_reset_raise \
>  	unix-pair-send-recv \
> diff --git a/tests/gen_tests.in b/tests/gen_tests.in
> index 314608eb..a8eb794e 100644
> --- a/tests/gen_tests.in
> +++ b/tests/gen_tests.in
> @@ -461,6 +461,8 @@ stat64	-a32 -v -P stat.sample -P /dev/full
>  statfs	-a17
>  statfs64	-a23
>  statx	-a32 -v -P stat.sample -P /dev/full
> +strace-z    -a12 -e trace=chdir -P .. -z
> +strace-Z    -a18 -e trace=chdir -P /dev/nil -Z

For the purpose of these tests you can safely assume that
chdir(".") does not fail and chdir("") does fail,
so there is no need for -P because
-e trace=chdir -z is expected to print chdir("."), and
-e trace=chdir -Z is expected to print chdir("");

>  swap	-a23 -e trace=swapon,swapoff
>  sxetmask	-a11 -e trace=sgetmask,ssetmask
>  symlink	-a34
> diff --git a/tests/strace-Z.c b/tests/strace-Z.c
> new file mode 100644
> index 00000000..12d7fedc
> --- /dev/null
> +++ b/tests/strace-Z.c
> @@ -0,0 +1,40 @@
> +/*
> + * Copyright (c) 2019 Intel Corporation
> + * Copyright (c) 2019 Paul Chaignon <paul.chaignon at gmail.com>
> + * All rights reserved.
> + *
> + * SPDX-License-Identifier: LGPL-2.1-or-later
> + */
> +
> +#include "tests.h"
> +#include <asm/unistd.h>
> +
> +#ifdef __NR_chdir

You can safely assume that __NR_chdir is universally available.
In fact, you can simply use chdir() function provided by libc.


-- 
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