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⇱ React Testing Masterclass 2026 – Unit & E2E Guide | Coursera

React Testing Masterclass 2026 – Unit & E2E Guide

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React Testing Masterclass 2026 – Unit & E2E Guide

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Gain insight into a topic and learn the fundamentals.
Intermediate level

Recommended experience

5 hours to complete
Flexible schedule
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
Intermediate level

Recommended experience

5 hours to complete
Flexible schedule
Learn at your own pace

What you'll learn

  • Write reliable unit tests for React components, hooks, and side effects using Vitest and modern testing utilities

  • Test complex state logic, API interactions, and asynchronous behavior with mocks and spies

  • Validate Redux reducers and connected components using predictable and isolated testing strategies

  • Implement end-to-end tests to verify complete user workflows and real-world interactions in React apps

Details to know

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Recently updated!

May 2026

Assessments

5 assignments

Taught in English

There are 5 modules in this course

This course features Coursera Coach!

A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. This course builds strong testing skills for modern React applications. You will learn how to write effective unit and end-to-end tests that improve reliability, reduce bugs, and increase confidence when maintaining or scaling React projects. You begin by setting up a React testing environment and understanding core testing concepts. The course then focuses on unit testing with Vitest, covering components, props, state, effects, custom hooks, and mocking techniques through guided lessons and real project examples. As you progress, you will test React Context and Redux logic, validating reducers and connected components. The course concludes with end-to-end testing to verify complete user workflows and interactions in a realistic React application. By the end of the course, you will be able to write reliable unit tests and implement end-to-end testing for real-world React applications. This intermediate-level course is ideal for React developers with basic JavaScript and React knowledge.

In this module, we will introduce the course objectives and the overall testing journey in React. We will explore why testing is critical for modern React applications and how source code is provided for hands-on learning. We will also prepare the development environment and tools needed for the course.

What's included

5 videos1 reading

5 videos•Total 9 minutes
  • Introduction•1 minute
  • Why Testing?•2 minutes
  • Source Code under the Video•0 minutes
  • Setting up Project•4 minutes
  • What Editor to Use?•1 minute
1 reading•Total 10 minutes
  • Full Course Resources•10 minutes

In this module, we will dive deep into unit testing React applications using Vitest. We will test components, hooks, context, and asynchronous logic through real-world examples. Learners will gain hands-on experience testing production-like React components confidently.

What's included

17 videos1 assignment

17 videos•Total 144 minutes
  • What Is Unit Testing?•2 minutes
  • Setting up Vitest•9 minutes
  • Testing Utilities and Helpers•5 minutes
  • Testing a Simple Component•7 minutes
  • Testing Inputs and Outputs•10 minutes
  • Mock and Spy Functions•9 minutes
  • Testing useState Hook•7 minutes
  • Testing useEffect with API Calls•12 minutes
  • Testing a Simple Custom Hook•6 minutes
  • Testing a Complex Custom Hook•8 minutes
  • Real React Project – Testing React Context•21 minutes
  • Real React Project – Testing Header Component•8 minutes
  • Real React Project – Testing Footer Component•9 minutes
  • Real React Project – Adding Custom Render•3 minutes
  • Real React Project – Testing Todo Component•12 minutes
  • Real React Project – Testing Main Component•12 minutes
  • Testing setTimeout in React•5 minutes
1 assignment•Total 15 minutes
  • Unit Testing - Assessment•15 minutes

In this module, we will focus on testing applications that use Redux for state management. We will validate reducers and ensure components interact correctly with the store. Learners will gain confidence testing complex state-driven React applications.

What's included

2 videos1 assignment

2 videos•Total 16 minutes
  • Testing Reducers•8 minutes
  • Testing Components with Redux Store•8 minutes
1 assignment•Total 15 minutes
  • Testing Redux - Assessment•15 minutes

In this module, we will introduce end-to-end testing concepts and strategies. We will simulate real user interactions to verify application behavior from start to finish. Learners will gain practical experience ensuring application reliability at scale.

What's included

2 videos1 assignment

2 videos•Total 20 minutes
  • What Is E2E Testing•2 minutes
  • Real React Project – E2E Testing User Interactions•18 minutes
1 assignment•Total 15 minutes
  • E2E Testing - Assessment•15 minutes

In this module, we will assign practical exercises to reinforce the concepts learned throughout the course. Learners will implement tests independently to strengthen their understanding. This module ensures readiness to apply React testing skills in real projects.

What's included

1 video2 assignments

1 video•Total 1 minute
  • Homework•1 minute
2 assignments•Total 75 minutes
  • Full Course Assessment•60 minutes
  • Full Course Practice Assessment•15 minutes

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Frequently asked questions

React testing involves verifying the functionality of React components, hooks, and Redux logic using automated tests. It's important because it helps ensure that React applications are reliable, maintainable, and scalable by catching bugs early, improving developer confidence, and ensuring correct behavior.

This course covers essential testing techniques for React applications, including unit testing with Vitest, testing hooks, Redux, and end-to-end (E2E) testing. It walks learners through real-world examples, enabling them to test React components, state management, and user interactions in their applications.

After completing this course, you will be able to confidently write unit tests for React components, custom hooks, and Redux logic. You will also understand how to set up testing environments, implement E2E tests, and ensure your React applications are robust and reliable.

Basic knowledge of React and JavaScript is recommended for this course. Familiarity with React components, state, and hooks will help you better understand the testing techniques covered. Previous experience with testing is not required.

This course is intended for React developers who want to improve the quality and reliability of their applications through effective testing. It’s suitable for those with basic JavaScript knowledge looking to dive into testing best practices for React.

The course takes approximately 6-8 hours to complete, depending on your pace. This includes watching the instructional videos and working through the practical homework exercises to apply what you've learned.

Yes, you can preview the first video and view the syllabus before you enroll. You must purchase the course to access content not included in the preview.

If you decide to enroll in the course before the session start date, you will have access to all of the lecture videos and readings for the course. You’ll be able to submit assignments once the session starts.

Once you enroll and your session begins, you will have access to all videos and other resources, including reading items and the course discussion forum. You’ll be able to view and submit practice assessments, and complete required graded assignments to earn a grade and a Course Certificate.

If you complete the course successfully, your electronic Course Certificate will be added to your Accomplishments page - from there, you can print your Course Certificate or add it to your LinkedIn profile.

This course is currently available only to learners who have paid or received financial aid, when available.

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

Financial aid available,