public void TestConsumerIteratorDeduplicationDeepIterator()
{
var messageStrings = Enumerable.Range(0, 10).Select(x => x.ToString()).ToList();
var messages = messageStrings.Select(s => new Message(Encoding.UTF8.GetBytes(s))).ToList();
var messageSet = new ByteBufferMessageSet(
CompressionCodecs.DefaultCompressionCodec, new AtomicLong(0), messages);
this.topicInfos[0].Enqueue(messageSet);
Assert.Equal(1, this.queue.Count);
this.queue.Add(ZookeeperConsumerConnector.ShutdownCommand);
var iter = new ConsumerIterator <string, string>(this.queue, this.consumerConfig.ConsumerTimeoutMs, new StringDecoder(), new StringDecoder(), string.Empty);
var receivedMessages = Enumerable.Range(0, 5).Select(_ => iter.Next().Message).ToList();
Assert.False(iter.HasNext());
Assert.Equal(1, this.queue.Count); // This is only shutdown comamnd
Assert.Equal(5, receivedMessages.Count);
var unconsumed =
messageSet.Where(x => x.Offset >= this.consumedOffset).Select(m => Util.ReadString(m.Message.Payload));
Assert.Equal(unconsumed, receivedMessages);
}
public void TestConsumerIteratorDecodingFailure()
{
var messageStrings = Enumerable.Range(0, 10).Select(x => x.ToString()).ToList();
var messages = messageStrings.Select(s => new Message(Encoding.UTF8.GetBytes(s))).ToList();
var messageSet = new ByteBufferMessageSet(
CompressionCodecs.NoCompressionCodec, new AtomicLong(0), messages);
this.topicInfos[0].Enqueue(messageSet);
Assert.Equal(1, this.queue.Count);
var iter = new ConsumerIterator <string, string>(
this.queue, ConsumerConfig.DefaultConsumerTimeoutMs, new FailDecoder(), new FailDecoder(), string.Empty);
for (var i = 0; i < 5; i++)
{
Assert.True(iter.HasNext());
var message = iter.Next();
Assert.Equal(message.Offset, i + this.consumedOffset);
Assert.Throws <NotSupportedException>(() => message.Message);
}
}