Adding Vitest Tests to a Next.js Application

Vitest is a fast and modern unit testing framework designed to integrate seamlessly with Vite, making it an excellent choice for Next.js applications built on React. This article explains how to set up Vitest in a Next.js project, write unit tests for your components and functions, and adopt best practices to ensure reliable and maintainable code. Whether you're a beginner or an experienced developer, this guide will help you establish a robust testing environment.