Add a new unit test for damos_commit_quota_goal().

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/tests/core-kunit.h | 84 +++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)

diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index 2770972b0a39..0fdf9c7eedc3 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -497,6 +497,89 @@ static void damos_test_new_filter(struct kunit *test)
 	damos_destroy_filter(filter);
 }
 
+static void damos_test_commit_quota_goal_for(struct kunit *test,
+		struct damos_quota_goal *dst,
+		struct damos_quota_goal *src)
+{
+	u64 dst_last_psi_total = 0;
+
+	if (dst->metric == DAMOS_QUOTA_SOME_MEM_PSI_US)
+		dst_last_psi_total = dst->last_psi_total;
+	damos_commit_quota_goal(dst, src);
+
+	KUNIT_EXPECT_EQ(test, dst->metric, src->metric);
+	KUNIT_EXPECT_EQ(test, dst->target_value, src->target_value);
+	if (src->metric == DAMOS_QUOTA_USER_INPUT)
+		KUNIT_EXPECT_EQ(test, dst->current_value, src->current_value);
+	if (dst_last_psi_total && src->metric == DAMOS_QUOTA_SOME_MEM_PSI_US)
+		KUNIT_EXPECT_EQ(test, dst->last_psi_total, dst_last_psi_total);
+	switch (dst->metric) {
+	case DAMOS_QUOTA_NODE_MEM_USED_BP:
+	case DAMOS_QUOTA_NODE_MEM_FREE_BP:
+		KUNIT_EXPECT_EQ(test, dst->nid, src->nid);
+		break;
+	case DAMOS_QUOTA_NODE_MEMCG_USED_BP:
+	case DAMOS_QUOTA_NODE_MEMCG_FREE_BP:
+		KUNIT_EXPECT_EQ(test, dst->nid, src->nid);
+		KUNIT_EXPECT_EQ(test, dst->memcg_id, src->memcg_id);
+		break;
+	default:
+		break;
+	}
+}
+
+static void damos_test_commit_quota_goal(struct kunit *test)
+{
+	struct damos_quota_goal dst = {
+		.metric = DAMOS_QUOTA_SOME_MEM_PSI_US,
+		.target_value = 1000,
+		.current_value = 123,
+		.last_psi_total = 456,
+	};
+
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal){
+			.metric = DAMOS_QUOTA_USER_INPUT,
+			.target_value = 789,
+			.current_value = 12});
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal){
+			.metric = DAMOS_QUOTA_NODE_MEM_FREE_BP,
+			.target_value = 345,
+			.current_value = 678,
+			.nid = 9,
+			});
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal){
+			.metric = DAMOS_QUOTA_NODE_MEM_USED_BP,
+			.target_value = 12,
+			.current_value = 345,
+			.nid = 6,
+			});
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal){
+			.metric = DAMOS_QUOTA_NODE_MEMCG_USED_BP,
+			.target_value = 456,
+			.current_value = 567,
+			.nid = 6,
+			.memcg_id = 7,
+			});
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal){
+			.metric = DAMOS_QUOTA_NODE_MEMCG_FREE_BP,
+			.target_value = 890,
+			.current_value = 901,
+			.nid = 10,
+			.memcg_id = 1,
+			});
+	damos_test_commit_quota_goal_for(test, &dst,
+			&(struct damos_quota_goal) {
+			.metric = DAMOS_QUOTA_USER_INPUT,
+			.target_value = 789,
+			.current_value = 12,
+			});
+}
+
 static void damos_test_commit_filter_for(struct kunit *test,
 		struct damos_filter *dst, struct damos_filter *src)
 {
@@ -782,6 +865,7 @@ static struct kunit_case damon_test_cases[] = {
 	KUNIT_CASE(damon_test_set_attrs),
 	KUNIT_CASE(damon_test_moving_sum),
 	KUNIT_CASE(damos_test_new_filter),
+	KUNIT_CASE(damos_test_commit_quota_goal),
 	KUNIT_CASE(damos_test_commit_filter),
 	KUNIT_CASE(damos_test_filter_out),
 	KUNIT_CASE(damon_test_feed_loop_next_input),
-- 
2.47.3