--- libaitio/example/test_exec.c	2013/12/05 16:02:02	1.1.2.4
+++ libaitio/example/test_exec.c	2013/12/05 17:12:16	1.1.2.6
@@ -30,6 +30,19 @@ main(int argc, char **argv)
 		goto end;
 	}
 
+	printf("last=%d\n", array_Last(p->prog_fds));
+
+	ret = io_progGrow(p, 8);
+	printf("+grow_progs=%d\n", ret);
+
+	printf("wait for keystroke %p ", p);
+	getchar();
+
+	ret = io_progVacuum(p, 5);
+	printf("+vacuum_progs=%d\n", ret);
+
+	printf("wait for keystroke %p ", p);
+	getchar();
 end:
 	io_progDestroy(&p);
 	return ret;