Github user liutang123 commented on a diff in the pull request: https://github.com/apache/spark/pull/19464#discussion_r144235787 --- Diff: core/src/test/scala/org/apache/spark/FileSuite.scala --- @@ -510,4 +510,16 @@ class FileSuite extends SparkFunSuite with LocalSparkContext { } } + test("spark.hadoop.filterOutEmptySplit") { + val sf = new SparkConf() + sf.setAppName("test").setMaster("local").set("spark.hadoop.filterOutEmptySplit", "true") + sc = new SparkContext(sf) + val emptyRDD = sc.parallelize(Array.empty[Tuple2[String, String]], 1) + emptyRDD.saveAsHadoopFile[TextOutputFormat[String, String]](tempDir.getPath + "/output") + assert(new File(tempDir.getPath + "/output/part-00000").exists() === true) + + val hadoopRDD = sc.textFile(tempDir.getPath + "/output/part-00000") + assert(hadoopRDD.partitions.length === 0) --- End diff -- The resources will be recycled by default in the afterEach function.
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