Fast and versatile argument checks

Visual regression testing and graphical diffing with testthat

unit testing for shiny reactivity

Runs only failing tests

Make testing even more fun with RStudio addins and more

Mutation testing for R — measure test assertion quality, not just coverage

Introduction to snapshot (aka golden) testing (in R)

Computational Methods for Numerical Analysis

R Test Adapter for the VSCode Test Explorer

🏭 Sealing the R Objects Test and Assert Conditions 🤖

Introduction to Testing R Code

Examples of testing patterns in R — from simple unit tests to more complex structures like Plumber APIs.

A Shiny dashboard depicting USA Trade data.

Godmode package for R

✔️✨ Pretty Assertive Programming

Skin Cancer Dataset Analysis using R & Quarto Markdown

A summary on how to use testthat within an R package and also just testing directories.

Open-source R toolkit for RT-QuIC data analysis

A Positron extension that brings R (testthat) test discovery and execution to the Test Explorer sidebar for non-package R projects.