test: update tests

io-test/tree.c

@@ -20,12 +20,13 @@ int main(int argc, const char **argv)
 		return -1;
 	}
 
-	b_directory_iterator it = {0};
-	b_directory_iterator_begin(dir, &it, B_DIRECTORY_ITERATE_PARENT_FIRST);
-	while (b_directory_iterator_is_valid(&it)) {
-		printf("%s\n", b_path_ptr(it.filepath));
-		b_directory_iterator_next(&it);
+	b_iterator *it = b_directory_begin(dir, B_DIRECTORY_ITERATE_PARENT_FIRST);
+	b_foreach(b_directory_entry *, entry, it)
+	{
+		printf("%s\n", b_path_ptr(entry->filepath));
 	}
 
+	b_iterator_unref(it);
+
 	return 0;
 }