+static void test_hashmap_steal_first(void) {
+ _cleanup_hashmap_free_ Hashmap *m = NULL;
+ int seen[3] = {};
+ char *val;
+
+ m = hashmap_new(&string_hash_ops);
+ assert_se(m);
+
+ assert_se(hashmap_put(m, "key 1", (void*) "1") == 1);
+ assert_se(hashmap_put(m, "key 2", (void*) "22") == 1);
+ assert_se(hashmap_put(m, "key 3", (void*) "333") == 1);
+
+ while ((val = hashmap_steal_first(m)))
+ seen[strlen(val) - 1]++;
+
+ assert(seen[0] == 1 && seen[1] == 1 && seen[2] == 1);
+
+ assert_se(hashmap_isempty(m));
+}
+