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-rw-r--r--core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala9
1 files changed, 8 insertions, 1 deletions
diff --git a/core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala b/core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala
index 55af1666df..2e2ccc5a18 100644
--- a/core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala
+++ b/core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala
@@ -24,7 +24,7 @@ import org.scalatest.FunSuite
import org.apache.spark._
import org.apache.spark.SparkContext._
-import org.apache.spark.rdd._
+import org.apache.spark.util.Utils
class RDDSuite extends FunSuite with SharedSparkContext {
@@ -66,6 +66,13 @@ class RDDSuite extends FunSuite with SharedSparkContext {
}
}
+ test("serialization") {
+ val empty = new EmptyRDD[Int](sc)
+ val serial = Utils.serialize(empty)
+ val deserial: EmptyRDD[Int] = Utils.deserialize(serial)
+ assert(!deserial.toString().isEmpty())
+ }
+
test("countApproxDistinct") {
def error(est: Long, size: Long) = math.abs(est - size) / size.toDouble