diff options
Diffstat (limited to 'lib/list-test.c')
| -rw-r--r-- | lib/list-test.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/lib/list-test.c b/lib/list-test.c index ee09505df16f..035ef6597640 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -161,6 +161,26 @@ static void list_test_list_del_init(struct kunit *test) KUNIT_EXPECT_TRUE(test, list_empty_careful(&a)); } +static void list_test_list_del_init_careful(struct kunit *test) +{ + /* NOTE: This test only checks the behaviour of this function in + * isolation. It does not verify memory model guarantees. + */ + struct list_head a, b; + LIST_HEAD(list); + + list_add_tail(&a, &list); + list_add_tail(&b, &list); + + /* before: [list] -> a -> b */ + list_del_init_careful(&a); + /* after: [list] -> b, a initialised */ + + KUNIT_EXPECT_PTR_EQ(test, list.next, &b); + KUNIT_EXPECT_PTR_EQ(test, b.prev, &list); + KUNIT_EXPECT_TRUE(test, list_empty_careful(&a)); +} + static void list_test_list_move(struct kunit *test) { struct list_head a, b; @@ -234,6 +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; @@ -511,6 +549,26 @@ static void list_test_list_entry(struct kunit *test) struct list_test_struct, list)); } +static void list_test_list_entry_is_head(struct kunit *test) +{ + struct list_test_struct test_struct1, test_struct2, test_struct3; + + INIT_LIST_HEAD(&test_struct1.list); + INIT_LIST_HEAD(&test_struct3.list); + + list_add_tail(&test_struct2.list, &test_struct1.list); + + KUNIT_EXPECT_TRUE_MSG(test, + list_entry_is_head((&test_struct1), &test_struct1.list, list), + "Head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, + list_entry_is_head((&test_struct2), &test_struct1.list, list), + "Non-head element of same list"); + KUNIT_EXPECT_FALSE_MSG(test, + list_entry_is_head((&test_struct3), &test_struct1.list, list), + "Head element of different list"); +} + static void list_test_list_first_entry(struct kunit *test) { struct list_test_struct test_struct1, test_struct2; @@ -707,9 +765,11 @@ static struct kunit_case list_test_cases[] = { KUNIT_CASE(list_test_list_replace_init), KUNIT_CASE(list_test_list_swap), KUNIT_CASE(list_test_list_del_init), + KUNIT_CASE(list_test_list_del_init_careful), 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), @@ -724,6 +784,7 @@ static struct kunit_case list_test_cases[] = { KUNIT_CASE(list_test_list_splice_init), KUNIT_CASE(list_test_list_splice_tail_init), KUNIT_CASE(list_test_list_entry), + KUNIT_CASE(list_test_list_entry_is_head), KUNIT_CASE(list_test_list_first_entry), KUNIT_CASE(list_test_list_last_entry), KUNIT_CASE(list_test_list_first_entry_or_null), |