Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/21639#discussion_r206697727
--- Diff: core/src/main/scala/org/apache/spark/TestUtils.scala ---
@@ -233,6 +233,21 @@ private[spark] object TestUtils {
}
}
+ /**
+ * Runs some code with the given listener installed in the SparkContext.
After the code runs,
+ * this method will wait until all events posted to the listener bus are
processed, and then
+ * remove the listener from the bus.
+ */
+ def withListener[L <: SparkListener](sc: SparkContext, listener: L)
(body: L => Unit): Unit = {
--- End diff --
private? hardly matters.
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