Refactoring is the practice of improving the code’s structure without changing its behavior. And the only way to do that safely is a robust test suite.
When tests are present, small renames, splitting large functions, extracting classes, inverting dependencies, and moving modules around become low-risk activities.
Tests let us reshape architecture while keeping behavior intact. That confidence is why refactoring pairs so well with test-first practices: tests become the specification you can rely on during change.
The result is cleaner code, better decoupling, and fewer surprises for the team.
Discussions for your team
- What are some examples where refactor has saved us time later in the project?
- Identify which modules are need of some refactoring.
- What is blocking us from refactoring today?
- Which one code area can we try to refactor this week?