jest VS storybook

GitHub | Website

Jest

you have selected a testing framework. In my case, it's Jest with Supertest

Jest, created and maintained by Facebook, is a JavaScript testing framework with a focus on simplicity. It is often recognized for its zero-configuration setup and seamless integration, especially with React applications, making it a favored choice for developers in both small-scale projects and large enterprise applications.

Jest (https://jestjs.io/)

console.error Jest encountered an unexpected token Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. By default "node\_modules" folder is ignored by transformers. Here's what you can do: • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it. • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript • To have some of your "node\_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config. • If you need a custom transformation specify a "transform" option in your config. • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option. You'll find more details and examples of these config options in the docs: https://jestjs.io/docs/configuration For information about custom transformations, see: https://jestjs.io/docs/code-transformation

Note: I will be using Jest as testing framework throughout the examples.

We use Jest Framework for testing. Jest is not a dogma, and, of course, in its place can be any other test runner, such as Mocha or Ava. Let's focus on tests. I'll provide a short example because I don’t want to waste your time. You can find the full version here. It's crucial to read the comments in the code below. Let's go!

Jest has long been my favorite got to test runner when it comes to UI unit and integration testing. With tools like React Testing Library (Testing Library framework for React) you get the benefit of very easy to write and maintain tests, as well as a quick and efficient way to run our tests.

Jest is a well-regarded JavaScript testing framework primarily designed for React applications, although its utility extends to projects using Babel, JavaScript, Node, Angular, and Vue. Created by Facebook, Jest emphasizes ensuring the correctness of JavaScript codebases. It allows developers to write tests with a familiar, feature-rich API, making the testing process swift and enjoyable​​.

[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