Commit 0926e8ff authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

mm/damon/core-test: add a unit test for damon_moving_sum() 

Add a simple unit test for the pseudo moving-sum function
(damon_moving_sum()).

Link: https://lkml.kernel.org/r/20230915025251.72816-5-sj@kernel.org


Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent d2c062ad

mm/damon/core-test.h

+16 −0
Original line number Diff line number Diff line
@@ -341,6 +341,21 @@ static void damon_test_set_attrs(struct kunit *test) 
	KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &invalid_attrs), -EINVAL);

}



static void damon_test_moving_sum(struct kunit *test)

{

	unsigned int mvsum = 50000, nomvsum = 50000, len_window = 10;

	unsigned int new_values[] = {10000, 0, 10000, 0, 0, 0, 10000, 0, 0, 0};

	unsigned int expects[] = {55000, 50000, 55000, 50000, 45000, 40000,

		45000, 40000, 35000, 30000};

	int i;



	for (i = 0; i < ARRAY_SIZE(new_values); i++) {

		mvsum = damon_moving_sum(mvsum, nomvsum, len_window,

				new_values[i]);

		KUNIT_EXPECT_EQ(test, mvsum, expects[i]);

	}

}



static void damos_test_new_filter(struct kunit *test)

{

	struct damos_filter *filter;
@@ -425,6 +440,7 @@ static struct kunit_case damon_test_cases[] = { 
	KUNIT_CASE(damon_test_set_regions),

	KUNIT_CASE(damon_test_update_monitoring_result),

	KUNIT_CASE(damon_test_set_attrs),

	KUNIT_CASE(damon_test_moving_sum),

	KUNIT_CASE(damos_test_new_filter),

	KUNIT_CASE(damos_test_filter_out),

	{},