shengminw commented on code in PR #4469:
URL: https://github.com/apache/rocketmq/pull/4469#discussion_r901212234


##########
store/src/test/java/org/apache/rocketmq/store/DefaultMessageStoreTest.java:
##########
@@ -657,6 +658,30 @@ public void testCleanUnusedLmqTopic() throws Exception {
 
     }
 
+    @Test
+    public void testEncodeLongMessage() throws Exception{
+        MessageExtBrokerInner messageExtBrokerInner = buildMessage();
+        Class clazz = messageStore.getClass();
+
+        Field fieldCommitLog = clazz.getDeclaredField("commitLog");
+        fieldCommitLog.setAccessible(true);
+        CommitLog commitLog = (CommitLog) fieldCommitLog.get(messageStore);
+
+        Field fieldMessageStoreConfig = 
clazz.getDeclaredField("messageStoreConfig");
+        fieldMessageStoreConfig.setAccessible(true);
+        MessageStoreConfig messageStoreConfig = (MessageStoreConfig) 
fieldMessageStoreConfig.get(messageStore);
+        messageExtBrokerInner.setBody(new 
byte[messageStoreConfig.getMaxMessageSize()]);
+
+        CommitLog.PutMessageThreadLocal putMessageThreadLocal = 
commitLog.getPutMessageThreadLocal().get();
+        PutMessageResult encodeResult1 = 
putMessageThreadLocal.getEncoder().encode(messageExtBrokerInner);
+        assertTrue(encodeResult1 == null);
+

Review Comment:
   ok, I will revise it.



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