refactoring-surgeon

To refactor a long method for maintainability, use the Extract Method technique to break it into smaller, manageable functions. This improves readability and testability without altering external behavior.

Common code smells indicating technical debt include Long Methods, Large Classes, and complex Switch Statements. Identifying these anti-patterns helps target refactoring efforts to improve overall code quality.

To ensure refactoring doesn't break behavior, adhere to testing best practices and run validation scripts. A validation script checks refactoring readiness and safety by verifying test coverage before changes.

Yes, unit tests are required before refactoring. The process depends on npm test:unit to validate that changes preserve external behavior and ensure the code remains robust throughout the transformation.

The best way to handle large classes is applying techniques like Introduce Parameter Object. This addresses bloat and conditional complexity through guided processes, ensuring code remains maintainable.