showuon commented on code in PR #12748: URL: https://github.com/apache/kafka/pull/12748#discussion_r1018908171
########## clients/src/test/java/org/apache/kafka/clients/consumer/CooperativeStickyAssignorTest.java: ########## @@ -78,6 +80,26 @@ public void testDecodeGeneration() { assertFalse(((CooperativeStickyAssignor) assignor).memberData(subscription).generation.isPresent()); } + @Test + public void testCooperativeStickyAssignorHonorSubscriptionUserdataIfNoGenerationIdInField() { + Map<String, Integer> partitionsPerTopic = new HashMap<>(); + partitionsPerTopic.put(topic, 2); + int higherGenerationId = 2; + int lowerGenerationId = 1; + + assignor.onAssignment(new ConsumerPartitionAssignor.Assignment(partitions(tp1)), new ConsumerGroupMetadata(groupId, higherGenerationId, consumer1, Optional.empty())); + ByteBuffer userDataWithHigherGenerationId = assignor.subscriptionUserData(new HashSet<>(topics(topic))); Review Comment: You're right. Change to test `memberDataFromSubscription` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org