android-tdd

## Platform Notes - Optional helper plugins may help in some environments, but they must not be treated as required for this skill. # Android Test-Driven Development (TDD) Acknowledgement: Shared by Peter Bamuhigire, techguypeter.com, +256 784 464178. <!-- dual-compat-start --> ## Use When - Android Test-Driven Development standards. Enforces Red-Green-Refactor cycle, test pyramid (70/20/10), layer-specific testing strategies, and CI integration. Use when building or reviewing Android apps with TDD methodology. ## Evidence Produced | Category | Artifact | Format | Example | |----------|----------|--------|---------| | Correctness | Android TDD test plan | Markdown doc per `skill-composition-standards/references/test-plan-template.md` covering Red-Green-Refactor cycles per layer | `docs/android/tdd-plan-checkout.md` | | Correctness | Test pyramid coverage report | Markdown doc showing 70/20/10 distribution and per-layer coverage | `docs/android/tdd-coverage-2026-04-16.md` | ## Decision Rules | Behaviour | First test boundary | |---|---| | Pure business rule | JVM unit test | | DAO query or migration | Instrumented Room test | | Repository coordination | Integration test with deterministic fakes | | User-visible navigation or semantics | Compose UI test | ## Capability Contract And Degraded Mode Read access to production and test code is required. Execute the narrowest failing test before editing when authorised. Without execution, supply the red test, expected failur...