Commit 5debe5bf authored by David Gow's avatar David Gow Committed by Shuah Khan
Browse files

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: default avatarDavid Gow <davidgow@google.com>
Acked-by: default avatarDaniel Latypov <dlatypov@google.com>
Acked-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 37dc573c

lib/list-test.c

+21 −0
Original line number Diff line number Diff line
@@ -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),