### Question:
RqueueConfig { public String getQueueStatisticsKey(String name) { return prefix + queueStatKeyPrefix + name; }  String getQueuesKey(); String getQueueName(String queueName); String getDelayedQueueName(String queueName); String getDelayedQueueChannelName(String queueName); String getProcessingQueueName(String queueName); String getProcessingQueueChannelName(String queueName); String getLockKey(String key); String getQueueStatisticsKey(String name); String getQueueConfigKey(String name);  }### Answer:
@Test public void getQueueStatisticsKey() { assertEquals("__rq::q-stat::test", rqueueConfigVersion1.getQueueStatisticsKey("test")); assertEquals("__rq::q-stat::test", rqueueConfigVersion2.getQueueStatisticsKey("test")); assertEquals( "__rq::q-stat::test", rqueueConfigVersion2ClusterMode.getQueueStatisticsKey("test")); }