Github user zsxwing commented on a diff in the pull request: https://github.com/apache/spark/pull/21454#discussion_r191945182 --- Diff: core/src/test/scala/org/apache/spark/SparkConfSuite.scala --- @@ -339,6 +340,38 @@ class SparkConfSuite extends SparkFunSuite with LocalSparkContext with ResetSyst } } + val defaultIllegalValue = "SomeIllegalValue" + val illegalValueTests : Map[String, (SparkConf, String) => Any] = Map( + "getTimeAsSeconds" -> (_.getTimeAsSeconds(_)), + "getTimeAsSeconds with default" -> (_.getTimeAsSeconds(_, defaultIllegalValue)), + "getTimeAsMs" -> (_.getTimeAsMs(_)), + "getTimeAsMs with default" -> (_.getTimeAsMs(_, defaultIllegalValue)), + "getSizeAsBytes" -> (_.getSizeAsBytes(_)), + "getSizeAsBytes with default string" -> (_.getSizeAsBytes(_, defaultIllegalValue)), + "getSizeAsBytes with default long" -> (_.getSizeAsBytes(_, 0L)), + "getSizeAsKb" -> (_.getSizeAsKb(_)), + "getSizeAsKb with default" -> (_.getSizeAsKb(_, defaultIllegalValue)), + "getSizeAsMb" -> (_.getSizeAsMb(_)), + "getSizeAsMb with default" -> (_.getSizeAsMb(_, defaultIllegalValue)), + "getSizeAsGb" -> (_.getSizeAsGb(_)), + "getSizeAsGb with default" -> (_.getSizeAsGb(_, defaultIllegalValue)), + "getInt" -> (_.getInt(_, 0)), + "getLong" -> (_.getLong(_, 0L)), + "getDouble" -> (_.getDouble(_, 0.0)), + "getBoolean" -> (_.getBoolean(_, false)) + ) + + illegalValueTests.foreach { case (name, getValue) => + test(s"SPARK-24337: $name throws an useful error message with key name") { + val key = "SomeKey" + val conf = new SparkConf() + conf.set(key, "SomeInvalidValue") + val thrown = intercept [IllegalArgumentException] { --- End diff -- nit: remove the space between `intercept` and `[IllegalArgumentException]`
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