FrankYang0529 commented on code in PR #16532:
URL: https://github.com/apache/kafka/pull/16532#discussion_r2028985028
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clients/src/test/java/org/apache/kafka/clients/consumer/internals/FetcherTest.java:
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@@ -3665,6 +3670,18 @@ public void
testWhenFetchResponseReturnsALeaderShipChangeErrorAndNewLeaderInform
// Validate subscription is still valid & fetch-able for tp1.
assertTrue(subscriptions.isFetchable(tp1));
}
+
+ @Test
+ public void testFetcherDontCacheAnyData() {
+ short version = 17;
+ FetchResponse fetchResponse = fetchResponse(tidp0, records,
Errors.NONE, 100L, -1L, 0L, 0);
+ LinkedHashMap<TopicPartition, FetchResponseData.PartitionData>
responseData = fetchResponse.responseData(topicNames, version);
+ assertEquals(topicNames.size(), responseData.size());
+ responseData.forEach((topicPartition, partitionData) ->
assertEquals(records, partitionData.records()));
+ LinkedHashMap<TopicPartition, FetchResponseData.PartitionData>
nonResponseData = fetchResponse.responseData(emptyMap(), version);
+ assertEquals(emptyMap().size(), nonResponseData.size());
+ nonResponseData.forEach((topicPartition, partitionData) ->
assertEquals(MemoryRecords.EMPTY, partitionData.records()));
Review Comment:
This line is never executed. We can remove this assertion.
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