Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20916#discussion_r178660701
--- Diff:
core/src/test/scala/org/apache/spark/deploy/SparkSubmitSuite.scala ---
@@ -106,6 +106,9 @@ class SparkSubmitSuite
// Necessary to make ScalaTest 3.x interrupt a thread on the JVM like
ScalaTest 2.2.x
implicit val defaultSignaler: Signaler = ThreadSignaler
+ private val emptyIvySettings = File.createTempFile("ivy", ".xml")
--- End diff --
It's not necessary to delete temp files in tests. They'll go away when you
do a "clean".
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