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list: test: Add a test for list_entry_is_head() 

The list_entry_is_head() macro was added[1] after the list KUnit tests,
so wasn't tested. Add a new KUnit test to complete the set.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e130816164e244b692921de49771eeb28205152d

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Daniel Latypov <dlatypov@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
David Gow 2022-02-25 10:52:49 +08:00 committed by Shuah Khan
parent 37dc573c0a
commit 5debe5bfa0
1 changed files with 21 additions and 0 deletions
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21
lib/list-test.c
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@ -549,6 +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;
@ -764,6 +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),