Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/4511#discussion_r24467148
--- Diff:
external/kafka/src/test/scala/org/apache/spark/streaming/kafka/KafkaRDDSuite.scala
---
@@ -40,43 +41,70 @@ class KafkaRDDSuite extends KafkaStreamSuiteBase with
BeforeAndAfter {
tearDownKafka()
}
- test("Kafka RDD") {
+ test("Kafka RDD basic usage") {
+ val sparkConf = new
SparkConf().setMaster("local[4]").setAppName(this.getClass.getSimpleName)
+ sc = new SparkContext(sparkConf)
+ val topic = "topicbasic"
+ createTopic(topic)
+ val messages = Set("the", "quick", "brown", "fox")
+ sendMessages(topic, messages.toArray)
+
+
+ val kafkaParams = Map("metadata.broker.list" -> brokerAddress,
+ "group.id" -> s"test-consumer-${Random.nextInt(10000)}")
+
+ val offsetRanges = Array(OffsetRange(topic, 0, 0, messages.size))
+
+ val rdd = KafkaUtils.createRDD[String, String, StringDecoder,
StringDecoder](
+ sc, kafkaParams, offsetRanges)
+
+ val received = rdd.map(_._2).collect.toSet
+ assert(received === messages)
+ }
+
+ test("Kafka RDD integration") {
--- End diff --
nit: integration doesnt quite mean much. Might be worth naming the tests
"create by topic" and "create by topic and offset ranges"
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