tomevault-io TDD (Test-Driven Development)
Kent Beck's Red-Green-Refactor cycle with Tidy First principles.
Workflow
/tdd:red -> write failing test -> /tdd:green -> pass test -> /commit
|
<- next feature <- /tdd:red <- satisfied? <- /tdd:refactor (repeat)
Phases
| Phase | Command | Action |
|---|---|---|
| RED | /tdd:red |
Write ONE small failing test |
| GREEN | /tdd:green |
Make it pass with minimal code, commit |
| REFACTOR | /tdd:refactor |
Improve structure (no behavior change), commit each step |
Core Principles
- One test at a time: Each RED adds exactly ONE failing test
- Minimal code: GREEN writes just enough to pass
- Never skip REFACTOR: Complete all three phases
- Tidy First: Separate structural changes (refactor) from behavioral changes (feat/fix)
- Small commits: Commit after GREEN, commit after EACH refactor
GREEN Phase Strategies
| Confidence | Strategy | Use When |
|---|---|---|
| Low | Fake It | Return constant, generalize later |
| High | Obvious Implementation | Solution is clear |
| Generalizing | Triangulation | Add test to break a fake |
Quality Standards
- Eliminate duplication between test and production code
- Express intent through clear naming
- Keep methods small and focused
- Run ALL tests after EVERY change
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