Commit d273b728 authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Shuah Khan
Browse files

kunit/test: Add example test showing parameterized testing 

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: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Cc: David Gow <davidgow@google.com>
Reviewed-by: default avatarDavid Gow <davidgow@google.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent c7853b55

lib/kunit/kunit-example-test.c

+34 −0
Original line number Diff line number Diff line
@@ -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),

	{}

};