On Wed, 4 Sept 2024 at 21:43, 'Zhen Lei' via KUnit Development kunit-dev@googlegroups.com wrote:
Test cases cover all possible situations:
- The cut number is invalid: zero or negative
- Partially cut.
- Cut all.
- The cut number is greater than the number of nodes in the old list.
- The old list is empty.
Signed-off-by: Zhen Lei thunder.leizhen@huawei.com
Thanks very much for the detailed test. It's great to see these kept up-to-date!
Reviewed-by: David Gow davidgow@google.com
Cheers, -- David
lib/list-test.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+)
diff --git a/lib/list-test.c b/lib/list-test.c index 37cbc33e9fdb380..3c60a6458545452 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -1172,6 +1172,56 @@ static void hlist_test_for_each_entry_safe(struct kunit *test) KUNIT_EXPECT_TRUE(test, hlist_empty(&list)); }
+static void hlist_test_cut_number(struct kunit *test) +{
struct hlist_node a[4], *last;HLIST_HEAD(old);HLIST_HEAD(new);int cnt;hlist_add_head(&a[3], &old);hlist_add_head(&a[2], &old);hlist_add_head(&a[1], &old);hlist_add_head(&a[0], &old);/* The cut number is less than 0 or zero */cnt = hlist_cut_number(&new, &old, -1, &last);KUNIT_EXPECT_EQ(test, cnt, 0);KUNIT_EXPECT_EQ(test, hlist_count_nodes(&old), 4);cnt = hlist_cut_number(&new, &old, 0, &last);KUNIT_EXPECT_EQ(test, cnt, 0);KUNIT_EXPECT_EQ(test, hlist_count_nodes(&old), 4);/* The cut number is less than the number of nodes in the old list. */cnt = hlist_cut_number(&new, &old, 2, &last);KUNIT_EXPECT_EQ(test, cnt, 2);KUNIT_EXPECT_EQ(test, hlist_count_nodes(&old), 2);KUNIT_EXPECT_EQ(test, hlist_count_nodes(&new), 2);KUNIT_EXPECT_PTR_EQ(test, last, &a[1]);hlist_splice_init(&new, last, &old);/* The cut number is equal to the number of nodes in the old list. */cnt = hlist_cut_number(&new, &old, 4, &last);KUNIT_EXPECT_EQ(test, cnt, 4);KUNIT_EXPECT_TRUE(test, hlist_empty(&old));KUNIT_EXPECT_EQ(test, hlist_count_nodes(&new), 4);KUNIT_EXPECT_PTR_EQ(test, last, &a[3]);hlist_splice_init(&new, last, &old);/* The cut number is greater than the number of nodes in the old list. */cnt = hlist_cut_number(&new, &old, 5, &last);KUNIT_EXPECT_EQ(test, cnt, 4);KUNIT_EXPECT_TRUE(test, hlist_empty(&old));KUNIT_EXPECT_EQ(test, hlist_count_nodes(&new), 4);KUNIT_EXPECT_PTR_EQ(test, last, &a[3]);/* The old list is empty. */cnt = hlist_cut_number(&new, &old, 1, &last);KUNIT_EXPECT_EQ(test, cnt, 0);KUNIT_EXPECT_TRUE(test, hlist_empty(&old));KUNIT_EXPECT_TRUE(test, hlist_empty(&new));+}
static struct kunit_case hlist_test_cases[] = { KUNIT_CASE(hlist_test_init), @@ -1192,6 +1242,7 @@ static struct kunit_case hlist_test_cases[] = { KUNIT_CASE(hlist_test_for_each_entry_continue), KUNIT_CASE(hlist_test_for_each_entry_from), KUNIT_CASE(hlist_test_for_each_entry_safe),
KUNIT_CASE(hlist_test_cut_number), {},};
-- 2.34.1
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