HyukjinKwon commented on code in PR #41606:
URL: https://github.com/apache/spark/pull/41606#discussion_r1250046113
##########
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 import should be within each test, and guarded by
`pyspark.testing.sqlutils.pandas_requirement_message`, e.g.,
```python
@unittest.skipIf(not have_pandas, pandas_requirement_message) # type: ignore
```
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