domains / families / software-engineering / tdd-workflow

tdd-workflow

combined

Test-driven development workflow for R using testthat. Use when writing new features, fixing bugs, or refactoring code. Enforces test-first development with 80%+ coverage. Test-Driven Development workflow principles. RED-GREEN-REFACTOR cycle.

When to use

• This skill is applicable to execute the workflow or actions described in the overview.

When not to use

• Use this skill only when the task clearly matches the scope described above.
• Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
• Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

Skill page

Conflict

The two skills cover the same high-level concept (TDD) but diverge significantly in scope and implementation. The first skill (sickn33) is a language-agnostic, conceptual guide to the RED-GREEN-REFACTOR cycle, focusing on principles, anti-patterns, and AI-agent roles. The second skill (brycewang-stanford) is a specific, technical implementation guide for R using the `testthat` package, including code examples, coverage requirements (80%+), and specific API usage (Edition 3). Neither is a reproduction of the other; the first lacks the R-specific tooling, and the second lacks the general conceptual framework and AI-agent patterns. Combining them provides a complete workflow: the conceptual foundation from the first and the concrete R implementation from the second.