list: list_swap to exchange elements
[ccan] / ccan / list / test / run.c
index 2f1acc78a0605e959fbc94a21cd7eae2a5595018..306744598e2461a5bd6eb28de70593c7b009088e 100644 (file)
@@ -19,13 +19,13 @@ static LIST_HEAD(static_list);
 int main(int argc, char *argv[])
 {
        struct parent parent;
-       struct child c1, c2, c3, *c, *n;
+       struct child c1, c2, c3, x1, *c, *n;
        unsigned int i;
        struct list_head list = LIST_HEAD_INIT(list);
        opaque_t *q, *nq;
        struct list_head opaque_list = LIST_HEAD_INIT(opaque_list);
 
-       plan_tests(79);
+       plan_tests(84);
        /* Test LIST_HEAD, LIST_HEAD_INIT, list_empty and check_list */
        ok1(list_empty(&static_list));
        ok1(list_check(&static_list, NULL));
@@ -253,5 +253,24 @@ int main(int argc, char *argv[])
        }
        ok1(i == 3);
 
+       /* test list_swap */
+       list_swap(&c3.list, &x1.list);
+       ok1(list_check(&parent.children, "list_swap"));
+       i = 0;
+       list_for_each(&parent.children, c, list) {
+               switch (i++) {
+               case 0:
+                       ok1(c == &c1);
+                       break;
+               case 1:
+                       ok1(c == &x1);
+                       break;
+               case 2:
+                       ok1(c == &c2);
+                       break;
+               }
+       }
+       ok1(i == 3);
+
        return exit_status();
 }