sendMessages("replication-broker4", dest, MSG_COUNT);
msgsA.waitForMessagesToArrive(2 * MSG_COUNT);
msgsB.waitForMessagesToArrive(2 * MSG_COUNT);
msgsC.waitForMessagesToArrive(2 * MSG_COUNT);
msgsD.waitForMessagesToArrive(2 * MSG_COUNT);
assertEquals(2 * MSG_COUNT, msgsA.getMessageCount());
assertEquals(2 * MSG_COUNT, msgsB.getMessageCount());
assertEquals(2 * MSG_COUNT, msgsC.getMessageCount());
assertEquals(2 * MSG_COUNT, msgsD.getMessageCount());