Enzyme
redux
Our great sponsors
Enzyme | redux | |
---|---|---|
32 | 268 | |
19,967 | 60,449 | |
-0.1% | 0.3% | |
6.7 | 9.0 | |
about 2 months ago | 5 days ago | |
JavaScript | TypeScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Enzyme
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Testing React Components: A Comprehensive Overview of Testing Libraries
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.
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Speeding up the JavaScript ecosystem – Polyfills gone rogue
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).
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Mastering React Testing: A Comprehensive Guide to Jest, Enzyme, and React Testing Library
Enzyme Documentation
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How To Scale Your React Applications
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.
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Top OpenAI Tools, Examples & Use Cases
GitHub link: https://github.com/enzymejs/enzyme
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How to Confidently Write Unit Tests using React Testing Library
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.
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Difference Between JEST and Enzyme?
Enzyme offers two types of API for shallow rendering and full rendering. Both are preferred for different test scenarios and functionalities.
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Testing with Jest and React Testing Library
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.
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Superset: Testing and Enzyme to RTL conversion
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.
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What would you consider to be a must for a modern 2022 dev stack?
react testing library instead of enzyme for testing react UIs. I'll never go back.
redux
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A Comprehensive Guide to React State Management
Redux
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Full Stack Web Development Concept map
redux - Redux is a key tool used in managing state across an application. This can be used with any web technology including React, Vue and Angular docs
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State Management Nx React Native/Expo Apps with TanStack Query and Redux
Redux is a client-state library.
- Redux 101
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The 20 most used React libraries
react-redux: A powerhouse for efficient state management and data flow control. Learn more
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React State Management in 2024
Reducer-based: requires dispatching actions to update a big centralised state, often called a “single source of truth”. In this group, we have Redux and Zustand.
- Redux Toolkit 2.0: new features, faster perf, smaller bundle sizes (plus major versions for all Redux family packages!)
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Redux Toolkit 2.0: new features, faster perf, smaller bundle sizes, and more
I am _thrilled_ to announce that:
Redux Toolkit 2.0 is LIVE!!!
- https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0
This major version has new features, faster perf, smaller bundle size, and removes deprecated options.
It's accompanied by majors for all our Redux family packages
## RTK 2.0:
- a new `combineSlices` method for lazy-loading reducers - Updates to `createSlice` to include a `selectors` field and allow defining thunks inside
- Immer 10 w/ faster updates
- Removal of deprecated options
See the migration guide:
- https://redux.js.org/usage/migrations/migrating-rtk-2
All of the Redux libraries now have modernized packaging with full ESM/CJS compat. They also ship modern JS (no transpiling for IE11), which means smaller bundle sizes.
We've also done byte-shaving work to shrink the bundles (extracting error messages, de-duping imports)
## Redux core 5.0:
- The TS conversion we did in 2019!
- Action types _must_ be strings
- `UnknownAction` as the default action type
- Better preloaded state types
- Internal subscription improvements
- Still marks `createStore` as deprecated!
- https://github.com/reduxjs/redux/releases/tag/v5.0.0
## React-Redux 9.0:
- *Now requires React 18 and RTK 2.0 / Redux 5.0*
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HTML Data Attributes: One of the Original State Management Libraries
DEV is a Rails monolith, which uses Preact in the front-end using islands architecture. The reason why I mention all this is that it's not a full-stack JavaScript application, and there is no state management library like Redux or Zustand in use. The data store, for the most part on the front end, is all data attributes.
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Blogged Answers: My Experience Modernizing Packages to ESM
Oh hey, that's my post!
(yes I spend too much time refreshing HN :) )
FWIW I did end up with a packaging combination that seems to work sufficiently. I never did fix the "FalseCJS" issue that `are-the-types-wrong` is detecting. I played with double-emitting TS typedefs, and the `tsup` tool _does_ actually have support for that now (added by Andrew Branch from the TS team). So it might be more feasible now. But ultimately I decided I was tired of messing with packaging setup and that what I've got is good enough. (hopefully)
We're actually about to launch Redux Toolkit 2.0 and Redux 5.0 this week, assuming the last couple pieces come together. Here's the latest RCs - you can see the current `package.json` files in there:
- https://github.com/reduxjs/redux-toolkit/releases/tag/v2.0.0...
What are some alternatives?
react-testing-library - 🐐 Simple and complete React DOM testing utilities that encourage good testing practices.
zustand - 🐻 Bear necessities for state management in React
Sinon.JS - Test spies, stubs and mocks for JavaScript.
remix - Build Better Websites. Create modern, resilient user experiences with web fundamentals.
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js
SWR - React Hooks for Data Fetching
jest - Delightful JavaScript Testing.
valtio - 💊 Valtio makes proxy-state simple for React and Vanilla
react-hook-form - 📋 React Hooks for form state management and validation (Web + React Native)
swift-composable-architecture - A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
Jooks (Jest ❤ + Hooks 🤘🏻) - Testing hooks with Jest
react-query - 🤖 Powerful asynchronous state management, server-state utilities and data fetching for TS/JS, React, Solid, Svelte and Vue. [Moved to: https://github.com/TanStack/query]