Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/15307#discussion_r83061090
--- Diff:
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaSourceSuite.scala
---
@@ -264,6 +266,44 @@ class KafkaSourceSuite extends KafkaSourceTest {
testUnsupportedConfig("kafka.auto.offset.reset", "latest")
}
+ test("input row metrics") {
+ val topic = newTopic()
+ testUtils.createTopic(topic, partitions = 5)
+ testUtils.sendMessages(topic, Array("-1"))
+ require(testUtils.getLatestOffsets(Set(topic)).size === 5)
+
+ val kafka = spark
+ .readStream
+ .format("kafka")
+ .option("subscribe", topic)
+ .option("kafka.bootstrap.servers", testUtils.brokerAddress)
+ .load()
+ .selectExpr("CAST(key AS STRING)", "CAST(value AS STRING)")
+ .as[(String, String)]
+
+ val mapped = kafka.map(kv => kv._2.toInt + 1)
+ val listener = new QueryStatusCollector
+ spark.streams.addListener(listener)
+ try {
+ testStream(mapped)(
+ makeSureGetOffsetCalled,
+ AddKafkaData(Set(topic), 1, 2, 3),
+ CheckAnswer(2, 3, 4),
+ AssertOnQuery { query =>
--- End diff --
indent
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