Github user tdas commented on a diff in the pull request:

    https://github.com/apache/spark/pull/4961#discussion_r26349936
  
    --- Diff: 
external/kafka/src/test/scala/org/apache/spark/streaming/kafka/ReliableKafkaStreamSuite.scala
 ---
    @@ -29,32 +29,36 @@ import com.google.common.io.Files
     import kafka.serializer.StringDecoder
     import kafka.utils.{ZKGroupTopicDirs, ZkUtils}
     import org.apache.commons.io.FileUtils
    -import org.scalatest.BeforeAndAfter
    +import org.scalatest.{FunSuite, BeforeAndAfter}
     import org.scalatest.concurrent.Eventually
     
     import org.apache.spark.SparkConf
     import org.apache.spark.storage.StorageLevel
     import org.apache.spark.streaming.{Milliseconds, StreamingContext}
     
    -class ReliableKafkaStreamSuite extends KafkaStreamSuiteBase with 
BeforeAndAfter with Eventually {
    +class ReliableKafkaStreamSuite extends FunSuite with BeforeAndAfter with 
Eventually {
     
    -  val sparkConf = new SparkConf()
    +  private val sparkConf = new SparkConf()
         .setMaster("local[4]")
         .setAppName(this.getClass.getSimpleName)
         .set("spark.streaming.receiver.writeAheadLog.enable", "true")
    -  val data = Map("a" -> 10, "b" -> 10, "c" -> 10)
    +  private val data = Map("a" -> 10, "b" -> 10, "c" -> 10)
     
    +  private var kafkaTestUtils: KafkaTestUtils = _
     
    -  var groupId: String = _
    -  var kafkaParams: Map[String, String] = _
    -  var ssc: StreamingContext = _
    -  var tempDirectory: File = null
    +  private var groupId: String = _
    +  private var kafkaParams: Map[String, String] = _
    +  private var ssc: StreamingContext = _
    +  private var tempDirectory: File = null
     
       before {
    --- End diff --
    
    Can you make this testsuite create only one instance of kafkaTestUtils in 
beforeAll instead of one per test?


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