Github user zsxwing commented on a diff in the pull request: https://github.com/apache/spark/pull/8464#discussion_r38258044 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala --- @@ -179,3 +180,46 @@ private[sql] trait SQLTestUtils DataFrame(_sqlContext, plan) } } + +private[sql] object SQLTestUtils { --- End diff -- Ah, because this is called in object `SparkPlanTest` and `LocalNodeTest` which don't use the already existing trait.
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