public void GetRangeTest()
 {
     using (var mock = new FakeRedisSocket("$5\r\nhello\r\n"))
         using (var redis = new PoolRedisClient(mock, new DnsEndPoint("fakehost", 9999)))
         {
             Assert.Equal("hello", redis.GetRange("key", 0, 10));
             Assert.Equal("*4\r\n$8\r\nGETRANGE\r\n$3\r\nkey\r\n$1\r\n0\r\n$2\r\n10\r\n", mock.GetMessage());
         }
 }