### Question:
RqueueConfig { public String getDelayedQueueName(String queueName) { if (dbVersion == 1) { return "rqueue-delay::" + queueName; } return prefix + getDelayedQueueSuffix() + getTaggedName(queueName); }  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 getDelayedQueueName() { assertEquals("rqueue-delay::test", rqueueConfigVersion1.getDelayedQueueName("test")); assertEquals("__rq::d-queue::test", rqueueConfigVersion2.getDelayedQueueName("test")); assertEquals( "__rq::d-queue::{test}", rqueueConfigVersion2ClusterMode.getDelayedQueueName("test")); }