Github user reggert commented on a diff in the pull request: https://github.com/apache/spark/pull/9264#discussion_r44564647 --- 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 -- I just copied the style of the test appears immediately above this.
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