Github user ProtD commented on a diff in the pull request:
https://github.com/apache/spark/pull/18872#discussion_r133150156
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/source/libsvm/LibSVMRelationSuite.scala
---
@@ -109,14 +112,15 @@ class LibSVMRelationSuite extends SparkFunSuite with
MLlibTestSparkContext {
test("write libsvm data and read it again") {
val df = spark.read.format("libsvm").load(path)
val tempDir2 = new File(tempDir, "read_write_test")
--- End diff --
`Utils.createTempDir` seems to be a nicer way. The directory is
automatically deleted when VM shuts down, so I believe no manual cleanup (cf.
comment lower) is needed.
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