@Override
                                protected boolean shouldRetainRecord(RecordBatch recordBatch, Record record) {
                                    // delete the records
                                    return false;
                                }
This test verifies that the checksum returned for various versions matches hardcoded values to catch unintentional
changes to how the checksum is computed.
clients/src/test/java/org/apache/kafka/common/record/MemoryRecordsTest.java