When is refactoring risky, and when should you avoid it?

Refactoring becomes risky and should be avoided in the following cases:

• Lack of test coverage: If the code is not covered by automated tests, refactoring can lead to unforeseen errors.

• Tight deadlines: When a project is under strong time pressure, refactoring can delay the release.

• Unclear requirements: If the functional requirements are changing or unclear, refactoring can lead to unnecessary costs.

• Complex, poorly understood code without documentation: Without understanding the logic, refactoring can worsen the situation.

• When changes do not add value: If refactoring does not improve readability, maintainability, or performance, it is better not to do it.

Overall, refactoring should be performed when there is good test coverage, clear goals for code improvement, and the ability to allocate time for it without risking product stability.