Major Description
Unit tests for arithmetic operations are scattered in the codebase:
- pyspark/pandas/tests/test_ops_on_diff_frames.py
- pyspark/pandas/tests/test_dataframe.py
- pyspark/pandas/tests/test_series.py
- (Upcoming) pyspark/pandas/tests/data_type_ops/
We wanted to consolidate them.
The code would be cleaner and easier to maintain.
