React Testing with Jest / Vitest - TypeScript - 2025

Build React app like a pro with React Testing Library, Jest, Vitest and TypeScript - learn how to write propper tests

*21.03.2025* - FULL COURSE UPDATE

A must have skill for React developers

Unit testing helps create robust, stable and scalable code. It is a mush have skill in today's React Development job marked.

Welcome the to React Testing Library with Jest / Vitest course - developed and taught by a react expert.

Course highlights:

• React testing basics, unit tests structure, triple A testing principles

• Setup of a React Typescript app with tests using Vite

• Jest intro

• Vitest intro

• Jest setup

• Vitest setup

• Test organizing for react applications

• Differences between Jest and Vitest at an implementation level

• Testing React hooks

• Testing user interaction and matchers

• Complete code with TypeScript, types and generics explanation.

• Snapshot testing

Advanced react testing topics:

• Testing React async code with Jest / Vitest and TypeScript

• Using the act function from React testing library

• Using spies and mocks with Jest

• Using spies and mocks inside Vitest

• Testing network call by using test doubles or MSW

• Testing route objects, navlinks and paths.

• Use Vite to build the app - with TypeScript

• Configure Vite and Vitest for optimal performance

• Build a CI/CD pipeline with Vite, React testing library and TypeScript using GitHub actions.

In this course you will learn how to use Test Driven Development (TDD):

• Analyze the advantages of TDD

• Hands-on practice with a great examples

All the typing is cut, the course shows respect for your time and all the source code is available as course resource or GitHub commit diff for a completely transparent learning experience.

Course advantages:

• Respect for your time: most of the time of the instructor typing is cut off, the course is focused on unit tests and Jest /React/ TypeScript explanations

• Concise: learn only what you need, no fillers to make the course falsely more appealing.

• Upp to Date - the course uses the latest technique to build React apps: Vite with TypeScript

• Experienced and programming active instructor: a great teacher never looses touch with the industry. This is especially true for software development, where the industry is so dynamic. This helps the instructor stay up to date with the best coding guidelines and present you the challenging parts, not the "hello world"

• Organized course structure: ten parts, progressive approach, consistent content

• Code changes in each lecture on Git with code diffs: this will help you get an concise overview of the lecture and correct in case you missed something

• Big font, dark background, fullHD content, this way it is readable even on a small screen or even tablet.

• Lifetime access

• Certificate of completion to present to your current or prospective employer

Do you want your Typescript or React code to have the best quality, and your project to be safe?

Do you want to use the latest industry standards, like Vite and TypeScript?

Enroll and start writing your tests in 10 minutes!