Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/18567#discussion_r126275145
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/SparkSessionBuilderSuite.scala ---
@@ -36,18 +38,22 @@ class SparkSessionBuilderSuite extends SparkFunSuite {
initialSession.sparkContext
}
+ override def afterEach(): Unit = {
+ // This suite should not interfere with the other test suites.
+ SparkSession.clearDefaultSession()
+ SparkSession.clearActiveSession()
--- End diff --
We need to update the unit test case because SparkContext requires
`spark.master`. I'll update like that.
```
if (!_conf.contains("spark.master")) {
throw new SparkException("A master URL must be set in your
configuration")
}
```
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