Add tests for feature engineering features and fix related bugs

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- Create `tests` directory and `tests/test_feature_engineering.py`.
- Add comprehensive pytests covering 10 functions in `features/feature_engineering.py`.
- Fix bug in `market_regime_dc` where integer index locations were incorrectly applied to the original DataFrame using `.loc`.
- Fix bug in `displacement_detection` where type coercion failed due to combining integer and float series in bitwise AND operations (`&`).
- Add assertions for column existence and value range bounding.

Co-authored-by: maghdam <63883156+maghdam@users.noreply.github.com>

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google-labs-jules[bot]

2026-03-11 18:37:59 +00:00

co-authored by maghdam

parent 29fcbf0f9d

commit 251aa900dd

10 changed files with 177 additions and 3 deletions

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tests/__init__.py