tomvanbussel commented on code in PR #39738:
URL: https://github.com/apache/spark/pull/39738#discussion_r1086632755


##########
python/pyspark/testing/connectutils.py:
##########
@@ -168,9 +168,21 @@ class ReusedConnectTestCase(unittest.TestCase, 
SQLTestUtils, PySparkErrorTestUti
     Spark Connect version of 
:class:`pyspark.testing.sqlutils.ReusedSQLTestCase`.
     """
 
+    @classmethod
+    def conf(cls):
+        """
+        Override this in subclasses to supply a more specific conf
+        """
+        return SparkConf()
+
     @classmethod
     def setUpClass(cls):
-        cls.spark = 
PySparkSession.builder.appName(cls.__name__).remote("local[4]").getOrCreate()
+        cls.spark = (
+            PySparkSession.builder.config(conf=ReusedConnectTestCase.conf())

Review Comment:
   This currently always uses a new `SparkConf`.
   ```suggestion
               PySparkSession.builder.config(conf=cls.conf())
   ```



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