[PATCH 3/4] tests: add swap.test

[Dmitry V. Levin]

On Wed, Apr 06, 2016 at 02:18:50PM +0800, Fei Jie wrote:
> * tests/swap.c: New file.
> * tests/swap.test: New test.
> * tests/.gitignore: Add swap.
> * tests/Makefile.am (check_PROGRAMS): Likewise.
> (DECODER_TESTS): Add swap.test.
> ---
>  tests/.gitignore  |  1 +
>  tests/Makefile.am |  2 ++
>  tests/swap.c      | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/swap.test   |  6 ++++++
>  4 files changed, 57 insertions(+)
>  create mode 100644 tests/swap.c
>  create mode 100755 tests/swap.test
> 
> diff --git a/tests/.gitignore b/tests/.gitignore
> index 9ebab08..c488409 100644
> --- a/tests/.gitignore
> +++ b/tests/.gitignore
> @@ -137,6 +137,7 @@ stack-fcall
>  stat
>  stat64
>  statfs
> +swap
>  sync_file_range
>  sync_file_range2
>  sysinfo
> diff --git a/tests/Makefile.am b/tests/Makefile.am
> index 651ebb0..c2bb592 100644
> --- a/tests/Makefile.am
> +++ b/tests/Makefile.am
> @@ -186,6 +186,7 @@ check_PROGRAMS = \
>  	stat \
>  	stat64 \
>  	statfs \
> +	swap \
>  	sync_file_range \
>  	sync_file_range2 \
>  	sysinfo \
> @@ -374,6 +375,7 @@ DECODER_TESTS = \
>  	stat64.test \
>  	statfs.test \
>  	sun_path.test \
> +	swap.test \
>  	sync_file_range.test \
>  	sync_file_range2.test \
>  	sysinfo.test \
> diff --git a/tests/swap.c b/tests/swap.c
> new file mode 100644
> index 0000000..7ef0bc1
> --- /dev/null
> +++ b/tests/swap.c
> @@ -0,0 +1,48 @@
> +#include "tests.h"
> +#include <sys/syscall.h>
> +
> +#if defined __NR_swapon && defined __NR_swapoff
> +
> +# include <errno.h>
> +# include <stdio.h>
> +# include <sys/swap.h>
> +# include <unistd.h>
> +
> +static const char *
> +error_msg(int error_num)
> +{
> +	const char *errno_text;
> +	switch (error_num) {
> +		case ENOSYS:
> +			errno_text = "ENOSYS";
> +			break;
> +		case EPERM:
> +			errno_text = "EPERM";
> +			break;
> +		default:
> +			errno_text = "ENOENT";
> +	}
> +	return errno_text;
> +}
> +
> +int
> +main(void)
> +{
> +	static const char sample[] = "swap.sample";
> +	int rc = syscall(__NR_swapon, sample, 0);
> +	printf("swapon(\"%s\", 0) = %d %s (%m)\n",
> +	       sample, rc, error_msg(errno));
> +
> +	rc = syscall(__NR_swapoff, sample);
> +	printf("swapoff(\"%s\") = %d %s (%m)\n",
> +	       sample, rc, error_msg(errno));
> +
> +	puts("+++ exited with 0 +++");
> +	return 0;
> +}
> +
> +#else
> +
> +SKIP_MAIN_UNDEFINED("__NR_swapon && __NR_swapoff")
> +
> +#endif
> diff --git a/tests/swap.test b/tests/swap.test
> new file mode 100755
> index 0000000..a30e1fd
> --- /dev/null
> +++ b/tests/swap.test
> @@ -0,0 +1,6 @@
> +#!/bin/sh
> +
> +# Check swapon and swapoff syscalls decoding.
> +
> +. "${srcdir=.}/init.sh"
> +run_strace_match_diff -a23 -e trace=swapon,swapoff

Applied, thanks.

Also I've fixed a bug in swapon flags decoding and added a check for
it in a separate commit.


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