Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/9264#discussion_r44563390
--- Diff:
core/src/test/scala/org/apache/spark/rdd/AsyncRDDActionsSuite.scala ---
@@ -197,4 +197,31 @@ class AsyncRDDActionsSuite extends SparkFunSuite with
BeforeAndAfterAll with Tim
Await.result(f, Duration(20, "milliseconds"))
}
}
+
+ private def testAsyncAction[R](action : RDD[Int] => FutureAction[R]) :
Unit = {
+ val executorInvoked = Promise[Unit]
+ val fakeExecutionContext = new ExecutionContext {
+ override def execute(runnable: Runnable): Unit = {
+ executorInvoked.success(())
+ }
+ override def reportFailure(t: Throwable): Unit = ()
+ }
+ /*
+ We sleep here so that we get to the assertion before the job
completes.
+ I wish there were a cleaner way to do this, but trying to use any
sort of synchronization
+ with this fails due to task serialization.
+ */
+ val rdd = sc.parallelize(1 to 100, 4).mapPartitions(itr =>
{Thread.sleep(1000L); itr})
--- End diff --
style: `mapPartitions { iter => Thread.sleep(1000L); iter }
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