React Testing with Jest / Vitest - TypeScript (Udemy.com)

I'm really enjoying this course. It is easy to understand, the explanations are clear, all the code for the examples is included and works as expected, and the instructor is knowledgeable and covers all the important topics.

Not fond of the format. Doesn't lend itself to much learning, and more copy/pasting of solution code. Better idea would be to provide a starter repo with skeleton code to add functionality to as it's discussed and presented in the course. Otherwise, the presenter seems very competent and knowledgeable with the topics covered, I just don't find this style of presentation engaging or challenging.

So clear, informative and technically instructive, and conveyed so well for beginners, as an early career junior developer this has been instrumental, this is one of the best courses I've ever taken alongside this course also by the same instructor - https://www.udemy.com/course/unit-testing-typescript-nodejs/

El curso me dio una base sólida sobre Testing con Vitest y Jest, ideal si trabajas con React. Explica bien los conceptos y la práctica es aplicable desde el primer momento. Recomendado para quienes quieren empezar a testear su código de forma profesional.

The course was a bit challenging at times, but I learned a lot. The Jest testing section was particularly helpful in understanding how to write effective tests.

Very pleased with the course. It's a great introduction to testing React applications that covers some of the most troublesome aspects, such as configuration and mocking.

very good for me as an experienced developer; not 5 but one star less because the initial project structure is presented as "we do this we do that" but not really explaining why the surrounding stuff is deleted and what would happen if we kept it...

yes, I got a chance to learn class components in order to learn Jest for unit testing. I had worked earlier with functional components. It cleared the concepts of passing props and states using class components. Thanks to Alex

I just finished this course and, as of today (10/18/2022), I consider this course to be outdated. First issue you will likely encounter is with react-router-dom, which if you created the app using create-react-app, will be on the latest version. You could downgrade the version like I see some people suggesting, or you could make it work by using the modern functionalities in your project, which I did and I recommend you do too, react-router is widely used and it's important to be up-to-date with these libraries. For example, we no longer affect the history object directly, which you see the instructor doing in the course. Second issue you'll probably encounter is when writing the tests. Some of the syntax that the instructor uses is discouraged in today's testing approaches, like rendering a component while setting up a test (beforeEach), and cleaning up the container after every test (afterEach). Jest itself will let you know about this as you type. Other than that, the course is a great starting point. You need to know typescript beforehand though

The course is good for those who know React and Typescript and want to see how they can combine them together. It is also good to prepare for a unit testing interview using these technologies (if you've never done it before). Don't expect however to learn React or Typescript from this course. You should be familiar with them as a prerequisite for this course.