@Override
  public void push(String queueName, String id, long offsetTimeInSecond) {
    push(queueName, id, 0, offsetTimeInSecond);
  }
@Test
  public void testPush() {
    String queueName = "test-queue";
    String id = "abcd-1234-defg-5678";
    queueDao.push(queueName, id, 123);
    assertEquals(1, internalQueue.size());
    assertTrue(internalQueue.containsKey(queueName));
    assertEquals(1, internalQueue.get(queueName).size());
    assertEquals(id, internalQueue.get(queueName).peek());
  }