Refactored CLI with UnitSelector and Testing

📅 2025-09-17 — Session: Refactored CLI with UnitSelector and Testing

🕒 13:30–14:30
🏷️ Labels: Refactoring, CLI, Python, Testing, Unitselector
📂 Project: Dev
⭐ Priority: MEDIUM

Session Goal

The primary objective of this session was to refactor a command-line interface (CLI) application by introducing a UnitSelector class to streamline filter logic and enhance code modularity. Additionally, the session aimed to implement smoke tests using pytest for both the CLI entrypoint and the UnitSelector functionality.

Key Activities

• Refactoring Recommendations: Developed a UnitSelector class to improve the organization and efficiency of filter logic in the CLI application.
• Pytest Smoke Tests: Created and executed pytest-style smoke tests for the CLI and UnitSelector, focusing on time-window slicing and tag filtering.
• CLI Commands and Fixes: Provided CLI command examples for units-select filtering and addressed a RuntimeError in Typer by replacing Literal with Enum for better CLI option handling.
• Validation and Roadmap: Validated the units-select functionality and outlined a three-stage roadmap for refactoring hydrate.py to enhance modular design and testing.

Achievements

• Successfully refactored the CLI application with a new UnitSelector class.
• Implemented and validated smoke tests for CLI functionalities using pytest.
• Resolved Typer CLI errors by updating option handling mechanisms.
• Developed a structured refactoring roadmap for future improvements.

Pending Tasks

• Further development on related tasks as encouraged by the validation of units-select functionality.
• Continue with the refactoring roadmap for hydrate.py as planned.