On Sat, 8 Jul 2023 at 05:09, Rae Moar <rmoar@xxxxxxxxxx> wrote:
>
> Add speed attribute to the test attribute API. This attribute will allow
> users to mark tests with a category of speed.
>
> Currently the categories of speed proposed are: normal, slow, and very_slow
> (outlined in enum kunit_speed). These are outlined in the enum kunit_speed.
>
> The assumed default speed for tests is "normal". This indicates that the
> test takes a relatively trivial amount of time (less than 1 second),
> regardless of the machine it is running on. Any test slower than this could
> be marked as "slow" or "very_slow".
>
> Add the macro KUNIT_CASE_SLOW to set a test as slow, as this is likely a
> common use of the attributes API.
>
> Add an example of marking a slow test to kunit-example-test.c.
>
> Signed-off-by: Rae Moar <rmoar@xxxxxxxxxx>
> ---
Looks good.
Reviewed-by: David Gow <davidgow@xxxxxxxxxx>
>
> Changes since v1:
> - Remove the "fast" category of speed.
>
> include/kunit/test.h | 30 +++++++++++++++++++++-
> lib/kunit/attributes.c | 46 +++++++++++++++++++++++++++++++++-
> lib/kunit/kunit-example-test.c | 9 +++++++
> 3 files changed, 83 insertions(+), 2 deletions(-)
>
> diff --git a/include/kunit/test.h b/include/kunit/test.h
> index 1fc9155988e9..c255c98a58f7 100644
> --- a/include/kunit/test.h
> +++ b/include/kunit/test.h
> @@ -63,8 +63,25 @@ enum kunit_status {
> KUNIT_SKIPPED,
> };
>
> +/* Attribute struct/enum definitions */
> +
> +/*
> + * Speed Attribute is stored as an enum and separated into categories of
> + * speed: very_slowm, slow, normal, and fast. These speeds are relative
Nit: we only have very_slow, slow & normal now.
> + * to other KUnit tests.
> + */
> +enum kunit_speed {
> + KUNIT_SPEED_UNSET,
> + KUNIT_SPEED_VERY_SLOW,
> + KUNIT_SPEED_SLOW,
> + KUNIT_SPEED_NORMAL,
> + KUNIT_SPEED_MAX = KUNIT_SPEED_NORMAL,
> +};
A part of me feels that we could get away with reversing the order of
this and having KUNIT_SPEED_NORMAL == 0. (Possibly reversing the
comparisons in the filtering, too.)
That's probably not worth the added complexity though. Either way,
maybe add a note that "UNSET" == "NORMAL".
> +
> /* Holds attributes for each test case and suite */
> -struct kunit_attributes {};
> +struct kunit_attributes {
> + enum kunit_speed speed;
> +};
>
> /**
> * struct kunit_case - represents an individual test case.
> @@ -150,6 +167,17 @@ static inline char *kunit_status_to_ok_not_ok(enum kunit_status status)
> { .run_case = test_name, .name = #test_name, \
> .attr = attributes }
>
> +/**
> + * KUNIT_CASE_SLOW - A helper for creating a &struct kunit_case
> + * with the slow attribute
> + *
> + * @test_name: a reference to a test case function.
> + */
> +
> +#define KUNIT_CASE_SLOW(test_name) \
> + { .run_case = test_name, .name = #test_name, \
> + .attr.speed = KUNIT_SPEED_SLOW }
> +
> /**
> * KUNIT_CASE_PARAM - A helper for creation a parameterized &struct kunit_case
> *
> diff --git a/lib/kunit/attributes.c b/lib/kunit/attributes.c
> index 9bda5a5f4030..e97096dbb3b1 100644
> --- a/lib/kunit/attributes.c
> +++ b/lib/kunit/attributes.c
> @@ -40,9 +40,53 @@ struct kunit_attr {
> enum print_ops print;
> };
>
> +/* String Lists for enum Attributes */
> +
> +static const char * const speed_str_list[] = {"unset", "very_slow", "slow", "normal"};
> +
> +/* To String Methods */
> +
> +static const char *attr_enum_to_string(void *attr, const char * const str_list[], bool *to_free)
> +{
> + long val = (long)attr;
> +
> + *to_free = false;
> + if (!val)
> + return NULL;
> + return str_list[val];
> +}
> +
> +static const char *attr_speed_to_string(void *attr, bool *to_free)
> +{
> + return attr_enum_to_string(attr, speed_str_list, to_free);
> +}
> +
> +/* Get Attribute Methods */
> +
> +static void *attr_speed_get(void *test_or_suite, bool is_test)
> +{
> + struct kunit_suite *suite = is_test ? NULL : test_or_suite;
> + struct kunit_case *test = is_test ? test_or_suite : NULL;
> +
> + if (test)
> + return ((void *) test->attr.speed);
> + else
> + return ((void *) suite->attr.speed);
> +}
> +
> +/* Attribute Struct Definitions */
> +
> +static const struct kunit_attr speed_attr = {
> + .name = "speed",
> + .get_attr = attr_speed_get,
> + .to_string = attr_speed_to_string,
> + .attr_default = (void *)KUNIT_SPEED_NORMAL,
> + .print = PRINT_ALWAYS,
> +};
> +
> /* List of all Test Attributes */
>
> -static struct kunit_attr kunit_attr_list[] = {};
> +static struct kunit_attr kunit_attr_list[] = {speed_attr};
>
> /* Helper Functions to Access Attributes */
>
> diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
> index b69b689ea850..01a769f35e1d 100644
> --- a/lib/kunit/kunit-example-test.c
> +++ b/lib/kunit/kunit-example-test.c
> @@ -220,6 +220,14 @@ static void example_params_test(struct kunit *test)
> KUNIT_EXPECT_EQ(test, param->value % param->value, 0);
> }
>
> +/*
> + * This test should always pass. Can be used to practice filtering attributes.
> + */
> +static void example_slow_test(struct kunit *test)
> +{
> + KUNIT_EXPECT_EQ(test, 1 + 1, 2);
> +}
> +
> /*
> * Here we make a list of all the test cases we want to add to the test suite
> * below.
> @@ -237,6 +245,7 @@ static struct kunit_case example_test_cases[] = {
> KUNIT_CASE(example_all_expect_macros_test),
> KUNIT_CASE(example_static_stub_test),
> KUNIT_CASE_PARAM(example_params_test, example_gen_params),
> + KUNIT_CASE_SLOW(example_slow_test),
> {}
> };
>
> --
> 2.41.0.255.g8b1d071c50-goog
>
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