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kunit/test: Add example test showing parameterized testing

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Use of parameterized testing is documented [1] but such use case
is not present in demo kunit test. Add small subtest for that.

[1] https://kernel.org/doc/html/latest/dev-tools/kunit/usage.html#parameterized-testing

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: David Gow <davidgow@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Michal Wajdeczko 2023-05-17 13:18:14 +02:00 committed by Shuah Khan
parent c7853b5511
commit d273b72846
1 changed files with 34 additions and 0 deletions
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34
lib/kunit/kunit-example-test.c
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@ -187,6 +187,39 @@ static void example_static_stub_test(struct kunit *test)
KUNIT_EXPECT_EQ(test, add_one(1), 2);
}
static const struct example_param {
int value;
} example_params_array[] = {
{ .value = 2, },
{ .value = 1, },
{ .value = 0, },
};
static void example_param_get_desc(const struct example_param *p, char *desc)
{
snprintf(desc, KUNIT_PARAM_DESC_SIZE, "example value %d", p->value);
}
KUNIT_ARRAY_PARAM(example, example_params_array, example_param_get_desc);
/*
* This test shows the use of params.
*/
static void example_params_test(struct kunit *test)
{
const struct example_param *param = test->param_value;
/* By design, param pointer will not be NULL */
KUNIT_ASSERT_NOT_NULL(test, param);
/* Test can be skipped on unsupported param values */
if (!param->value)
kunit_skip(test, "unsupported param value");
/* You can use param values for parameterized testing */
KUNIT_EXPECT_EQ(test, param->value % param->value, 0);
}
/*
* Here we make a list of all the test cases we want to add to the test suite
* below.
@ -203,6 +236,7 @@ static struct kunit_case example_test_cases[] = {
KUNIT_CASE(example_mark_skipped_test),
KUNIT_CASE(example_all_expect_macros_test),
KUNIT_CASE(example_static_stub_test),
KUNIT_CASE_PARAM(example_params_test, example_gen_params),
{}
};