Github user sryza commented on a diff in the pull request: https://github.com/apache/spark/pull/3976#discussion_r23899955 --- Diff: yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnClusterSuite.scala --- @@ -98,6 +121,9 @@ class YarnClusterSuite extends FunSuite with BeforeAndAfterAll with Matchers wit } fakeSparkJar = File.createTempFile("sparkJar", null, tempDir) + val sparkHome = sys.props.getOrElse("spark.test.home", fail("spark.test.home is not set!")) --- End diff -- What's the motivation for these additions?
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