William1104 commented on a change in pull request #24747:
[SPARK-27772][SQL][TEST] SQLTestUtils Refactoring
URL: https://github.com/apache/spark/pull/24747#discussion_r289499073
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala
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@@ -255,61 +254,41 @@ private[sql] trait SQLTestUtilsBase
* Drops temporary view `viewNames` after calling `f`.
*/
protected def withTempView(viewNames: String*)(f: => Unit): Unit = {
- try f finally {
- // If the test failed part way, we don't want to mask the failure by
failing to remove
- // temp views that never got created.
- try viewNames.foreach(spark.catalog.dropTempView) catch {
- case _: NoSuchTableException =>
- }
- }
+ Utils.tryWithSafeFinally(f)(viewNames.foreach(spark.catalog.dropTempView))
Review comment:
A slightly modified version. Less code and no more null.
```
Utils.tryWithSafeFinally(f) {
val suppressed = viewNames.map(viewName =>
Try(spark.catalog.dropTempView(viewName))).map {
case Failure(t) => t
}
if (suppressed.nonEmpty) {
suppressed.tail.foreach(suppressed.head.addSuppressed)
throw suppressed.head
}
}
```
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