private static void checkReceivedMessages(int num_ucasts, MyReceiver... receivers) { for (int i = 0; i < 20; i++) { boolean all_received = true; for (MyReceiver receiver : receivers) { List<Message> ucasts = receiver.getUnicasts(); int ucasts_received = ucasts.size(); if (num_ucasts != ucasts_received) { all_received = false; break; } } if (all_received) break; Util.sleep(500); } for (MyReceiver receiver : receivers) { List<Message> ucasts = receiver.getUnicasts(); int ucasts_received = ucasts.size(); System.out.println("receiver " + receiver + ": ucasts=" + ucasts_received); assertEquals("ucasts for " + receiver + ": " + print(ucasts), num_ucasts, ucasts_received); } }