list_del_init/list_node_init: for multiple list_del() calls.

[ccan] / ccan / list / test / run.c

diff --git a/ccan/list/test/run.c b/ccan/list/test/run.c
index dad308282f7c14aa77bb2ecd54277770618b0ed5..88c3835b4070b63949f002c44a4416bdef9cada0 100644 (file)
--- a/ccan/list/test/run.c
+++ b/ccan/list/test/run.c
@@ -25,7 +25,7 @@ int main(int argc, char *argv[])
        opaque_t *q, *nq;
        struct list_head opaque_list = LIST_HEAD_INIT(opaque_list);
 
-       plan_tests(68);
+       plan_tests(70);
        /* Test LIST_HEAD, LIST_HEAD_INIT, list_empty and check_list */
        ok1(list_empty(&static_list));
        ok1(list_check(&static_list, NULL));
@@ -155,6 +155,19 @@ int main(int argc, char *argv[])
        ok1(i == 3);
        ok1(list_empty(&parent.children));
 
+       /* Test list_node_init: safe to list_del after this. */
+       list_node_init(&c->list);
+       list_del(&c->list);
+
+       /* Test list_del_init */
+       list_add(&parent.children, &c->list);
+       ok1(!list_empty(&parent.children));
+       list_del_init(&c->list);
+       ok1(list_empty(&parent.children));
+       /* We can call this as many times as we like. */
+       list_del_init(&c->list);
+       list_del_init(&c->list);
+
        /* Test list_for_each_off. */
        list_add_tail(&opaque_list,
                      (struct list_node *)create_opaque_blob());