linux-kernel - Re: [PATCH v2] selftests/input: add tests for the EVIOCSABS ioctl

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Date:   Wed, 28 Jun 2023 10:21:31 +0200
From:   Enric Balletbo Serra <eballetbo@...il.com>
To:     Dana Elfassy <delfassy@...hat.com>
Cc:     shuah@...nel.org, eballetbo@...nel.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dana Elfassy <dangel101@...il.com>
Subject: Re: [PATCH v2] selftests/input: add tests for the EVIOCSABS ioctl

Hi Dana,

Thank you for the patch.

Missatge de Dana Elfassy <delfassy@...hat.com> del dia dg., 25 de juny
2023 a les 14:31:
>
> This patch introduces two tests for the EVIOCSABS ioctl. The first one
> checks that the ioctl fails when the EV_ABS bit was not set, and the
> second one just checks that the normal workflow for this ioctl
> succeeds.
>
> Signed-off-by: Dana Elfassy <dangel101@...il.com>

Using gcov i see that this covers the code path when an EVIOCSABS
ioctl is called, so

Reviewed-by: Enric Balletbo i Serra <eballetbo@...nel.org>


> ---
> This patch depends on '[v3] selftests/input: Introduce basic tests for evdev ioctls' [1] sent to the ML.
> [1] https://patchwork.kernel.org/project/linux-input/patch/20230607153214.15933-1-eballetbo@kernel.org/
>
>  tools/testing/selftests/input/evioc-test.c | 23 ++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/tools/testing/selftests/input/evioc-test.c b/tools/testing/selftests/input/evioc-test.c
> index 4c0c8ebed378..7afd537f0b24 100644
> --- a/tools/testing/selftests/input/evioc-test.c
> +++ b/tools/testing/selftests/input/evioc-test.c
> @@ -279,4 +279,27 @@ TEST(eviocgrep_get_repeat_settings)
>         selftest_uinput_destroy(uidev);
>  }
>
> +TEST(eviocsabs_set_abs_value_limits)
> +{
> +       struct selftest_uinput *uidev;
> +       struct input_absinfo absinfo;
> +       int rc;
> +
> +       // fail test on dev->absinfo
> +       rc = selftest_uinput_create_device(&uidev), -1;
> +       ASSERT_EQ(0, rc);
> +       ASSERT_NE(NULL, uidev);
> +       rc = ioctl(uidev->evdev_fd, EVIOCSABS(0), &absinfo);
> +       ASSERT_EQ(-1, rc);
> +       selftest_uinput_destroy(uidev);
> +
> +       // ioctl normal flow
> +       rc = selftest_uinput_create_device(&uidev, EV_ABS, -1);
> +       ASSERT_EQ(0, rc);
> +       ASSERT_NE(NULL, uidev);
> +       rc = ioctl(uidev->evdev_fd, EVIOCSABS(0), &absinfo);
> +       ASSERT_EQ(0, rc);
> +       selftest_uinput_destroy(uidev);
> +}
> +
>  TEST_HARNESS_MAIN
> --
> 2.41.0
>