tdd-workflow

Enforce test-first development for R packages using testthat and usethis.

1|Updated Mar 9, 2026

Search Tags:#workflow #testing #tdd #testthat #r #usethis

Ready to run

npx skills add https://github.com/gnoblet/ANA_app_svelte --skill tdd-workflow-gnoblet

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tdd-workflow
Source: https://github.com/gnoblet/ANA_app_svelte/tree/main/.claude/.claude/skills/tdd-workflow
Command: npx skills add https://github.com/gnoblet/ANA_app_svelte --skill tdd-workflow-gnoblet

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

R development often lacks enforced testing discipline, leading to brittle code and missed edge cases. This workflow provides a structured approach to ensure tests are written before implementation and to maintain high test coverage across packages.

Core Features & Use Cases

Enforces test-first development using testthat and usethis scaffolding.
Guides the creation of unit and integration tests with clear structure and expectations.
Supports feature development, bug fixes, and refactoring in R packages to improve reliability and maintainability.

Quick Start

Initialize the testing infrastructure for your package by configuring testthat, creating a first test file, and running the test suite.

Frequently Asked Questions about tdd-workflow

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I enforce test-first development in R packages?▼

To enforce test-first development in R packages, configure testthat and usethis to scaffold testing infrastructure, create initial tests before implementation, and run the suite to verify behavior. This workflow guides the creation of unit and integration tests to ensure reliable, well-documented code.

What is the best way to improve test coverage when refactoring R code?▼

The best way to improve test coverage during R code refactoring is to apply a structured test-driven workflow using testthat. This approach enforces comprehensive test creation before modifying code, ensuring maintainability and catching edge cases to prevent brittle code.

How do I set up testthat and usethis for TDD in an R project?▼

Set up testthat and usethis for TDD by initializing the testing infrastructure for your R package. Configure testthat, use usethis for scaffolding to create an initial test file, and run the test suite to establish a green baseline for feature development.

Does test-driven development work for bug fixes in R packages?▼

Yes, test-driven development works for bug fixes in R packages. This workflow guides you to write tests that reproduce the bug before fixing the implementation, ensuring reliable code and comprehensive test coverage that prevents future regressions.

Why does my R package development lack testing discipline?▼

R package development often lacks testing discipline because the process is not enforced, leading to brittle code and missed edge cases. A structured TDD workflow enforces test-first design to improve reliability, maintainability, and documentation across packages.

Can I use this TDD workflow for both unit and integration tests in R?▼

Yes, you can use this TDD workflow for both unit and integration tests in R. It guides the creation of tests with clear structure and expectations, supporting feature development, bug fixes, and refactoring to maintain high test coverage across packages.