ian910297 commented on code in PR #16588:
URL: https://github.com/apache/kafka/pull/16588#discussion_r1677934043
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clients/src/test/java/org/apache/kafka/clients/consumer/ConsumerRecordsTest.java:
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@@ -145,6 +144,34 @@ public void testRecordsByTopic() {
}
}
+ @Test
+ public void testRecordsAreImmutable() {
+ String topic = "topic";
+ int recordSize = 3;
+ int partitionSize = 6;
+ int emptyPartitionIndex = 2;
+ TopicPartition topicFilter = new TopicPartition(topic, 0);
+ TopicPartition newPartition = new TopicPartition(topic, 0);
+ ConsumerRecord<Integer, String> newRecord = new
ConsumerRecord<>(topic, 0, 0, 0L, TimestampType.CREATE_TIME,
+ 0, 0, 0, "0", new RecordHeaders(), Optional.empty());
+ ConsumerRecords<Integer, String> records =
buildTopicTestRecords(recordSize, partitionSize, emptyPartitionIndex,
Collections.singleton(topic));
+ ConsumerRecords<Integer, String> emptyRecords =
ConsumerRecords.empty();
+
+ // check records / partitions by add method
+ // check iterator by remove method
+ // check data count after all operations
+ assertThrows(UnsupportedOperationException.class, () ->
records.records(topicFilter).add(newRecord));
Review Comment:
Add assertion check for records(String).
In addition to this, I checked the CustomerRecord class and confirmed all
method in this class that return immutable objects are covered by our test scope
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