Added a unit test to cover af_to_name in af-list.c

diff --git a/src/test/test-af-list.c b/src/test/test-af-list.c
index 45655d792ed44c917308ff716a70c9ac17c25986..8c86b72dc025c17d7e1df1719480eb23389e5c59 100644 (file)
--- a/src/test/test-af-list.c
+++ b/src/test/test-af-list.c
@@ -22,6 +22,7 @@ TEST(af_list) {
         }
 
         assert_se(af_to_name(af_max()) == NULL);
+        assert_se(af_to_name(0) == NULL);
         assert_se(af_to_name(-1) == NULL);
         assert_se(af_from_name("huddlduddl") == -EINVAL);
         assert_se(af_from_name("") == -EINVAL);