heesung-sn commented on code in PR #20948:
URL: https://github.com/apache/pulsar/pull/20948#discussion_r1286226585


##########
pulsar-broker/src/test/java/org/apache/pulsar/client/impl/MessageChunkingSharedTest.java:
##########
@@ -211,6 +212,32 @@ private static String createChunkedMessage(int numChunks) {
         return Schema.STRING.decode(payload);
     }
 
+    @Test
+    public void testDuplicateForChunkMessage() throws Exception {
+        String topicName = 
"persistent://my-property/my-ns/testDuplicateForChunkMessage";
+        String producerName = "test-producer";
+        pulsarClient = 
PulsarClient.builder().serviceUrl(pulsar.getBrokerServiceUrl()).build();
+        // consumer
+        Consumer<byte[]> consumer = pulsarClient
+                .newConsumer()
+                .subscriptionName("test-sub")
+                .topic(topicName)
+                .subscribe();
+        // producer
+        Producer<String> partProducer = pulsarClient
+                .newProducer(Schema.AVRO(String.class))
+                .producerName(producerName)
+                .topic(topicName)
+                .enableChunking(true)
+                .enableBatching(false)
+                .create();
+        int messageSize = 6000; // payload size in KB
+        String message = "a".repeat(messageSize * 1000);
+        partProducer.newMessage().value(message).send();

Review Comment:
   Aren't we supposed to test dedup messages? Is this a validate dedup + 
chunking test?



##########
pulsar-broker/src/test/java/org/apache/pulsar/client/impl/MessageChunkingSharedTest.java:
##########
@@ -211,6 +212,32 @@ private static String createChunkedMessage(int numChunks) {
         return Schema.STRING.decode(payload);
     }
 
+    @Test
+    public void testDuplicateForChunkMessage() throws Exception {
+        String topicName = 
"persistent://my-property/my-ns/testDuplicateForChunkMessage";
+        String producerName = "test-producer";
+        pulsarClient = 
PulsarClient.builder().serviceUrl(pulsar.getBrokerServiceUrl()).build();
+        // consumer
+        Consumer<byte[]> consumer = pulsarClient
+                .newConsumer()
+                .subscriptionName("test-sub")
+                .topic(topicName)
+                .subscribe();
+        // producer
+        Producer<String> partProducer = pulsarClient
+                .newProducer(Schema.AVRO(String.class))
+                .producerName(producerName)
+                .topic(topicName)
+                .enableChunking(true)
+                .enableBatching(false)
+                .create();
+        int messageSize = 6000; // payload size in KB
+        String message = "a".repeat(messageSize * 1000);
+        partProducer.newMessage().value(message).send();
+        Message<byte[]> msg = consumer.receive(5, TimeUnit.SECONDS);

Review Comment:
   Please assert the expected sequence id and message contents.



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