[GOOD FIRST ISSUE] Add unit tests for DocStripper class

[kiku-jw]

Description

Currently, there are no automated tests for the DocStripper class. Adding tests would help ensure reliability and prevent regressions.

Task

Create unit tests for:

• isPageNumber() method
• isHeaderFooter() method
• processText() method
• Edge cases (empty files, single line, etc.)

Testing Framework

• JavaScript: Jest or Mocha
• Python: pytest or unittest

Files to Create

• tests/test_docstripper.js (for web app)
• tests/test_tool.py (for CLI)

Acceptance Criteria

• Test coverage for core methods
• Edge cases covered
• Tests run in CI/CD (future)

Tips

• Look at examples/before_after.txt for test cases
• Test both positive and negative cases
• Mock File objects for web app tests

[KarBryant]

I'm hoping to assist with unit testing with pytest. is this issue still applicable? if so, are there any edge cases that you are potentially anticipating?

Thank you,