Enzyme VS storybook

Probably Enzyme was the first to popularize component testing in React by doing shallow rendering and expecting some things to be there in the React component tree. Then React Testing library came and took component testing to a whole new level.

Enzyme is another popular testing utility for React. It allows you to manipulate and traverse React components' output, making it easier to write comprehensive tests.

ljharb is an extremely interesting person. There’s no doubting the positive impact he’s had on the OSS community and the work he’s done.

However, there are some things he does that are incomprehensible.

For example, Enzyme. Over three years ago this issue was opened for Enzyme on React 17: https://github.com/enzymejs/enzyme/issues/2429

Nothing moved for a while, and I think he said something along the lines of “if you want React 17 support, stop complaining and help”. So the community got involved. There are multiple PRs adding React 17 support. Many unofficial React 17 adapters. A lot of people have put a lot of work into this, ensuring compatibility, coverage etc. Yet to this day, none of them have been merged. Eg https://github.com/enzymejs/enzyme/pull/2564

Given the amount of time that has passed, and the work the community has put in, something is amiss. It feels like he’s now intentionally avoiding React 17+ support. But why? I don’t understand why someone would ask for help then ignore the help when it comes in. That isn’t much better than the swathe of rude/entitled comments he was getting on the issue before he locked it.

I ended up migrating to RTL, but this made many of my tests more complicated (especially compared to shallow rendering).

Enzyme Documentation

One way to do this is by writing tests for your React components. Tools like Jest and Enzyme make it easy to test your component's behavior, rendering output, and state changes. By writing tests for your components, you can ensure that they behave as expected and prevent issues before they reach production.

GitHub link: https://github.com/enzymejs/enzyme

So If you have experience with enzyme testing, where you might be checking the value of state once you click any button or you might be checking the prop value If something changes.

Enzyme offers two types of API for shallow rendering and full rendering. Both are preferred for different test scenarios and functionalities.

At Visa, I was writing unit tests for a Next.js project using components designed with Chakra UI. That's where React Testing Library came in handy. Unlike other solutions like Enzyme, I did not have to worry about the application snapshot but could instead focus on each UI element, its expected behaviour and the data it would render upon user interactions.

Superset uses Jest and React Testing Library (RTL) to write unit and integration tests. In the past we used Enzyme, but now that we're currently converting all of our class components to functional components, Enzyme cannot support our testing needs. Since RTL is better for testing functional components, we're converting all of our test files to RTL. This can be quite a learning curve - I've gone through a lot of the process so I'd like to share what I've learned so far.

[Bug]: Configuration with TailwindCss Next.js using Tailwind with Storybook

Astro has no runtime. This means no unit tests. This also means no Storybook for your Astro components (although, they’re working on it!)

If you're into UI development, then you need to know about Storybook. It's a frontend workshop for building UI components and pages in isolation. The latest version brings some big improvements for testing and documentation with built-in visual testing. There's also React Server Component support, improved controls for React and Vue projects, as well as improved Vite architecture, Vitest testing, and Vite 5 support. Check out all the major changes in the Storybook changelog.

Storybook

We are continuing to make building fullstack websites and application with Analog and Angular as seamless as possible, and extending the Angular ecosystem through integrations with Astro, Nx, [Vitest]https://analogjs.org/docs/features/testing/vitest, Storybook, and more.

Storybook is the industry standard UI tool for building, testing, and documenting components and pages. It’s used by thousands of teams globally, integrates with all major JavaScript frameworks, and combines with most leading design and developer tools.

Expo has first-class support for building full-stack websites with React, so I can leverage that to add Cypress/Playwright for E2E testing and add the Storybook for UI components.

Storybook emerges as a pioneering solution among React debugging tools, offering an interactive environment for developers to create and test UI components. With its robust platform, teams can build, organize, and design UI components, and even entire screens, without the hurdles of business logic and plumbing.

3) Look into things like StoryBook for your components - https://storybook.js.org/ - they help you get into good practices and expose you to some more advanced techniques but in a gradual and friendly way, and again, it's good to get into good habits from the start, and these help make sure you're getting into those good habits (it can be hard to learn good habits, but being forced into them helps, I find!)

[Storybook 7.6](https://github.com/storybookjs/storybook/releases) is here with increased performance and much more! 🔥 Improved SWC support 🧪 New test utilities and fast build mode 🔼 NextJS SWC + avif support & fixes 🤡 SvelteKit page and navigation mocking ⚛️ React-docgen upgrade 🎨 Controls a11y, background theming, and viewports 🩺 CLI: The doctor is in! 🚫 Addons: Remove React as a peer dependency 🪦 Storyshots and Vue2 deprecated