HeartSaVioR commented on a change in pull request #22282: [SPARK-23539][SS] Add 
support for Kafka headers in Structured Streaming
URL: https://github.com/apache/spark/pull/22282#discussion_r307124628
 
 

 ##########
 File path: 
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaRelationSuite.scala
 ##########
 @@ -158,19 +157,21 @@ abstract class KafkaRelationSuiteBase extends QueryTest 
with SharedSQLContext wi
     val topic = newTopic()
     testUtils.createTopic(topic, partitions = 3)
     testUtils.sendMessage(
-      topic, ("1", Array(("once", "1".getBytes), ("twice", "2".getBytes))), 
Some(0)
+      topic, ("1", Seq()), Some(0)
     )
     testUtils.sendMessage(
-      topic, ("2", Array(("once", "2".getBytes), ("twice", "4".getBytes))), 
Some(1)
+      topic, ("2", Seq(("a", "b".getBytes("UTF-8")), ("c", 
"d".getBytes("UTF-8")))), Some(1)
 
 Review comment:
   I would be happy to deal with cleaning up. Just want to avoid adding more 
for what Spark seems to use less. (I sought with ".getBytes" and 
StandardCharsets.UTF_8 is used majorly.)

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