Update python/pyspark/sql/tests/test_pandas_map.py

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Co-authored-by: Hyukjin Kwon <gurwls223@gmail.com>

Author: Ngone51

python/pyspark/sql/tests/test_pandas_map.py

@@ -118,7 +118,7 @@ def test_self_join(self):
         df2 = df1.mapInPandas(lambda iter: iter, 'id long')
         actual = df2.join(df2).collect()
         expected = df1.join(df1).collect()
-        self.assertEqual(actual, expected)
+        self.assertEqual(sorted(actual), sorted(expected))
 
 
 if __name__ == "__main__":