Re: [PATCH v4 1/4] KVM: s390: selftests: Use TAP interface in the memop test

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On 5/31/22 12:15, Thomas Huth wrote:
> The memop test currently does not have any output (unless one of the
> TEST_ASSERT statement fails), so it's hard to say for a user whether
> a certain new sub-test has been included in the binary or not. Let's
> make this a little bit more user-friendly and include some TAP output
> via the kselftests.h interface.
> 
> Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
> ---
>  tools/testing/selftests/kvm/s390x/memop.c | 95 ++++++++++++++++++-----
>  1 file changed, 77 insertions(+), 18 deletions(-)
> 
> diff --git a/tools/testing/selftests/kvm/s390x/memop.c b/tools/testing/selftests/kvm/s390x/memop.c
> index 49f26f544127..e704c6fa5758 100644
> --- a/tools/testing/selftests/kvm/s390x/memop.c
> +++ b/tools/testing/selftests/kvm/s390x/memop.c
> @@ -14,6 +14,7 @@
>  

[...]

>  int main(int argc, char *argv[])
>  {
> -	int memop_cap, extension_cap;
> +	int memop_cap, extension_cap, idx;
>  
>  	setbuf(stdout, NULL);	/* Tell stdout not to buffer its content */
>  
> +	ksft_print_header();
> +
>  	memop_cap = kvm_check_cap(KVM_CAP_S390_MEM_OP);
>  	extension_cap = kvm_check_cap(KVM_CAP_S390_MEM_OP_EXTENSION);
>  	if (!memop_cap) {
> -		print_skip("CAP_S390_MEM_OP not supported");
> -		exit(KSFT_SKIP);
> +		ksft_exit_skip("CAP_S390_MEM_OP not supported.\n");
>  	}
>  
> -	test_copy();
> -	if (extension_cap > 0) {
> -		test_copy_key();
> -		test_copy_key_storage_prot_override();
> -		test_copy_key_fetch_prot();
> -		test_copy_key_fetch_prot_override();
> -		test_errors_key();
> -		test_termination();
> -		test_errors_key_storage_prot_override();
> -		test_errors_key_fetch_prot_override_not_enabled();
> -		test_errors_key_fetch_prot_override_enabled();
> -	} else {
> -		print_skip("storage key memop extension not supported");
> +	ksft_set_plan(ARRAY_SIZE(testlist));
> +
> +	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
> +		if (testlist[idx].extension >= extension_cap) {

This is reversed, should be

   		if (testlist[idx].extension <= extension_cap) {
or
		if (extension_cap >= testlist[idx].extension) {

I'd prefer the latter.

> +			testlist[idx].test();
> +			ksft_test_result_pass("%s\n", testlist[idx].name);
> +		} else {
> +			ksft_test_result_skip("%s - extension level %d not supported\n",
> +					      testlist[idx].name,
> +					      testlist[idx].extension);
> +		}
>  	}
> -	test_errors();
>  
> -	return 0;
> +	ksft_finished();	/* Print results and exit() accordingly */
>  }




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