diff options
Diffstat (limited to 'lib/list-test.c')
| -rw-r--r-- | lib/list-test.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/list-test.c b/lib/list-test.c index 302b7382bff4..3870ebfd84aa 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -254,6 +254,24 @@ static void list_test_list_bulk_move_tail(struct kunit *test) KUNIT_EXPECT_EQ(test, i, 2); } +static void list_test_list_is_head(struct kunit *test) +{ + struct list_head a, b, c; + + /* Two lists: [a] -> b, [c] */ + INIT_LIST_HEAD(&a); + INIT_LIST_HEAD(&c); + list_add_tail(&b, &a); + + KUNIT_EXPECT_TRUE_MSG(test, list_is_head(&a, &a), + "Head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, list_is_head(&a, &b), + "Non-head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, list_is_head(&a, &c), + "Head element of different list"); +} + + static void list_test_list_is_first(struct kunit *test) { struct list_head a, b; @@ -731,6 +749,7 @@ static struct kunit_case list_test_cases[] = { KUNIT_CASE(list_test_list_move), KUNIT_CASE(list_test_list_move_tail), KUNIT_CASE(list_test_list_bulk_move_tail), + KUNIT_CASE(list_test_list_is_head), KUNIT_CASE(list_test_list_is_first), KUNIT_CASE(list_test_list_is_last), KUNIT_CASE(list_test_list_empty), |