Testing React Apps with React Testing Library

A comprehensive A-Z guide to testing React apps with React Testing Library and Vitest / Jest.

4.7Stars3661 reviews

Subscribe to access all courses. Cancel anytime!

Subscribe for $29/m


Course Overview

  • Beginner to Pro
  • 7 hours of HD video
  • 100 lessons
  • Downloadable content
  • Hands-on exercises
  • English captions
  • Certificate of completion
  • Lifetime access
  • Learn at your own pace

Clear. Concise. Comprehensive.

Tired of piecing together disconnected tutorials or dealing with rambling, confusing instructors? This course is for you! It's perfectly structured into a series of bite-sized, easy-to-follow videos that cover both theory and practice.

Highly practical

What You'll Learn

  • Master the fundamentals of testing React applications with React Testing Library.
  • Write maintainable, robust, and trustworthy tests that consistently deliver value.
  • Efficiently mock API responses with Mock Service Worker (MSW).
  • Mock data using @mswjs/data and @faker-js.
  • Simulate user events in a test environment.
  • Dive into advanced testing techniques involving authentication, state management, routing, etc.
  • Master refactoring techniques that pros use to make their code more readable and maintainable.
  • Learn from real-world examples and exercises that prepare you for the job.
  • Use ESLint to catch code quality issues early.
A perfectly structured course

Course Content

7 Hours . 8 Sections . 100 Lessons

Getting Started(20m)

Testing React Components(2h)

    Mocking APIs(2h)

      Testing Forms(1h)

        Testing State Management(44m)

          Testing Authentication(12m)

            Testing Routing(23m)


                Target student

                Who Is This For?

                • Developers looking to level up their React skills.
                • Software engineers aiming to improve code quality.
                • React developers preparing for job interviews.
                • Anyone looking to boost their career prospects by mastering React testing.
                What you should know


                To fully benefit from this course, a solid foundation in React is essential. You should be well-versed in all the core concepts, including components, hooks, state management, routing, and more. Additionally, a basic understanding of unit testing plain JavaScript code (without UI frameworks) using tools like Jest or Vitest is necessary.

                Here are the courses we recommend if you need to strengthen the fundamentals.

                React 18 for Beginners

                A step-by-step guide to building web apps with React 18+ and TypeScript


                React 18: Intermediate Topics

                Take your React skills to the next level by mastering state management and routing


                Mastering JavaScript Unit Testing

                A comprehensive, beginner-friendly guide covering everything from the basics to advanced techniques



                I'm Mosh Hamedani.

                Are you feeling stuck or overwhelmed in your coding journey? Don't worry, I've got your back! Together, we'll work to level up your skills, increase your earning potential, and build a brighter future.


                Students taught


                YouTube fans


                Years of experience


                Coding courses


                What my students say

                4.7out of 5 based on 3661 reviews

                I started learning programming w/ Mosh 4 years ago with his C# & .NET courses. Thanks to those I landed my first job. Then, I continued to learn from his materials and made the jump from Jr. to Ssr. and then to Sr. Software Engineer (my salary went 10x from my first job). Now, 4 years later I continue to learn with his excellent courses.

                Federico Figueredo
                Federico Figueredo

                Mosh doesn't fail to leave out important details. You can tell that Mosh has put a lot of thought into creating these courses. His professional and personal experience drives these courses to be thoughtful and outstanding.

                Enkhjin Batzul

                The best courses I’ve participated so far. Mosh has a unique teaching ability. His lectures are fun and engaging. The visuals are great. Relatively dificult concepts are explained with simple words. Whenever any one asks for a programming course I recommend Mosh Hamedani, and only him. Other courses I’ve had were at best mediocre.


                I love how every part of the course is broken down very well that even beginners can understand it and not feel overwhelmed, confused or carried away. Also how the lessons/course is in sections, one can go back to a particular section for review if need be especially when working on the exercises.

                Gerald Ikenna
                Gerald Ikenna

                I found this course to be complete and very clear and easy to follow. Mosh is very good at explaining, it feels like a friend talking to you very naturally, and the course is very entertaining. And it comes at an amazing value! I definitely recommend it!

                Marco Delbue

                This is my second course from Mosh and it is great as well, The way he explains little details (how and why's) is very helpful and builds a solid base of understanding the code. Great instructor!

                Nadia Shahid

                Accelerate Your Coding Journey

                Don't waste your valuable time piecing together disconnected tutorials from different sources. Enroll now and gain the skills and knowledge you need to excel, all in one place.

                Money-back guarantee
                All Courses
                • 51 comprehensive courses
                • 340 hours of HD video
                • Downloadable content
                • Hands-on exercises
                • English captions
                • Certificate of completion
                • Access while subscribed
                • Learn at your own pace
                Subscribe & Save

                Cancel anytime!

                Money-back guarantee
                This Course Only
                • In-depth course
                • 7 hours of HD video
                • Downloadable content
                • Hands-on exercises
                • English captions
                • Certificate of completion
                • Lifetime access
                • Learn at your own pace
                Enroll Now

                Try it risk free!

                Looking for a team license? Contact us