HyukjinKwon commented on code in PR #41606:
URL: https://github.com/apache/spark/pull/41606#discussion_r1250046528


##########
python/pyspark/sql/tests/test_utils.py:
##########
@@ -23,11 +23,100 @@
     IllegalArgumentException,
     SparkUpgradeException,
 )
+from pyspark.testing.utils import assertDFEquality
 from pyspark.testing.sqlutils import ReusedSQLTestCase
+from pyspark.testing.connectutils import ReusedConnectTestCase
+import pyspark.sql.functions as F
 from pyspark.sql.functions import to_date, unix_timestamp, from_unixtime
 
+import pandas as pd

Review Comment:
   This is because pandas isn't a required but optional dependency in PySpark.



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