linux-kernel - Re: [PATCH v5 3/6] kunit: add example suite to test init suites

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Date:   Thu, 14 Dec 2023 11:04:52 +0800
From:   David Gow <davidgow@...gle.com>
To:     Rae Moar <rmoar@...gle.com>
Cc:     shuah@...nel.org, dlatypov@...gle.com, brendan.higgins@...ux.dev,
        sadiyakazi@...gle.com, keescook@...omium.org, arnd@...db.de,
        linux-kselftest@...r.kernel.org, linux-arch@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/6] kunit: add example suite to test init suites

On Thu, 14 Dec 2023 at 03:44, Rae Moar <rmoar@...gle.com> wrote:
>
> Add example_init_test_suite to allow for testing the feature of running
> test suites marked as init to indicate they use init data and/or
> functions.
>
> This suite should always pass and uses a simple init function.
>
> This suite can also be used to test the is_init attribute introduced in
> the next patch.
>
> Signed-off-by: Rae Moar <rmoar@...gle.com>
> ---

Thanks -- this looks better to me.

Reviewed-by: David Gow <davidgow@...gle.com>

-- David

> Changes since v4:
> - Mark test as __init and then set cases as __refdata to supress modpost
>   warnings
>
>  lib/kunit/kunit-example-test.c | 37 ++++++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
>
> diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
> index 6bb5c2ef6696..d2f7a3c62c18 100644
> --- a/lib/kunit/kunit-example-test.c
> +++ b/lib/kunit/kunit-example-test.c
> @@ -287,4 +287,41 @@ static struct kunit_suite example_test_suite = {
>   */
>  kunit_test_suites(&example_test_suite);
>
> +static int __init init_add(int x, int y)
> +{
> +       return (x + y);
> +}
> +
> +/*
> + * This test should always pass. Can be used to test init suites.
> + */
> +static void __init example_init_test(struct kunit *test)
> +{
> +       KUNIT_EXPECT_EQ(test, init_add(1, 1), 2);
> +}
> +
> +/*
> + * The kunit_case struct cannot be marked as __initdata as this will be
> + * used in debugfs to retrieve results after test has run
> + */
> +static struct kunit_case __refdata example_init_test_cases[] = {
> +       KUNIT_CASE(example_init_test),
> +       {}
> +};
> +
> +/*
> + * The kunit_suite struct cannot be marked as __initdata as this will be
> + * used in debugfs to retrieve results after test has run
> + */
> +static struct kunit_suite example_init_test_suite = {
> +       .name = "example_init",
> +       .test_cases = example_init_test_cases,
> +};
> +
> +/*
> + * This registers the test suite and marks the suite as using init data
> + * and/or functions.
> + */
> +kunit_test_init_section_suites(&example_init_test_suite);
> +
>  MODULE_LICENSE("GPL v2");
> --
> 2.43.0.472.g3155946c3a-goog
>

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