@Test
  public void testFifo() {
    RpcSchedulerFactory factory = new FifoRpcSchedulerFactory();
    RpcScheduler rpcScheduler = factory.create(this.conf, null, null);
    assertTrue(rpcScheduler.getClass().equals(FifoRpcScheduler.class));
  }
A silly test that does nothing but make sure an rpcscheduler factory makes what it says it is
going to make.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRpcSchedulerFactory.java