jest-dom
:owl: Custom jest matchers to test the state of the DOM (by testing-library)
jest
Delightful JavaScript Testing. (by jestjs)
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jest-dom | jest | |
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22 | 473 | |
4,290 | 43,581 | |
1.1% | 0.5% | |
7.0 | 9.5 | |
11 days ago | about 19 hours ago | |
JavaScript | TypeScript | |
MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
jest-dom
Posts with mentions or reviews of jest-dom.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-15.
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Mastering Jest Configuration for React TypeScript Projects with Vite: A Step-by-Step Guide
//config/jest/setupTests.ts // jest-dom adds custom jest matchers for asserting on DOM nodes. // allows you to do things like: // expect(element).toHaveTextContent(/react/i) // learn more: https://github.com/testing-library/jest-dom import '@testing-library/jest-dom';
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Anyone have setup instructions for Vitest + Typescript + React testing library? My setup is failing to extend matchers on Vitest Types
Update: Just got it working. Following the instructions on this github issue and using `shamefully-hoist=true` with pnpm I got it working. The issue I was facing was with pnpm.
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Is there a jest query method for this use case?
React Testing Library uses jest-dom which has a .getByText() matcher.
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Setting Up a Modern Preact Application With Typescript, Vite and Vitest
vitest-dom extends the standard Jest matchers with convenient methods like .toBeDisabled. Now you can write tests that assert on the state of the DOM. The package is a fork of @testing-library/jest-dom.
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Superset: Testing and Enzyme to RTL conversion
jest-dom matchers
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Migrating from Jest to Vitest
At the time of writing this article, it still seems to be an open issue. However, a workaround I found is to add "skipLibCheck": true, to your tsconfig.json file.
- Buenas prácticas con Angular Testing Library
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Unable to test React-Redux Toolkit app
// jest-dom adds custom jest matchers for asserting on DOM nodes. // allows you to do things like: // expect(element).toHaveTextContent(/react/i) // learn more: https://github.com/testing-library/jest-dom import '@testing-library/jest-dom'; import { server } from './mocks/server'; beforeAll( () => server.listen( { onUnhandledRequest: 'error' } ) ); afterEach( () => server.resetHandlers() ); afterAll( () => server.close() );
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Setup Jest to React Typescript Vite project, also SWC (part 1)
Everything you want to do to your test environment such as extends the jest matchers with @testing-library/jest-dom, mock some APIs that’s not implemented in jdom, you can put to config/jest/setupTests.js:
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Svelte test suite setup
This will register the additional assertions from @testing-library/jest-dom.
jest
Posts with mentions or reviews of jest.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-04-05.
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What is an Abstract Syntax Tree in Programming?
GitHub | Website
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Top 10 Tools Every React Developer Needs in 2024
Jest
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API Testing with Clerk and Express
you have selected a testing framework. In my case, it's Jest with Supertest
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JS Toolbox 2024: Bundlers and Test Frameworks
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.
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Testing library for Node.js and React
Jest (https://jestjs.io/)
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Unit Testing Expo Apps With Jest
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
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Easily create mock data for unit tests 🧪
Note: I will be using Jest as testing framework throughout the examples.
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Painless CLI integration testing
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!
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What is integration testing in UI/Front End?
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.
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13 best React debugging tools
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.
What are some alternatives?
When comparing jest-dom and jest you can also consider the following projects:
msw - Seamless REST/GraphQL API mocking library for browser and Node.js.
tap - Test Anything Protocol tools for node
jest-cheat-sheet - Jest cheat sheet
vitest - Next generation testing framework powered by Vite.
Cypress - Fast, easy and reliable testing for anything that runs in a browser.
Cucumber.js - Cucumber for JavaScript
user-event - 🐕 Simulate user events
Sinon.JS - Test spies, stubs and mocks for JavaScript.
husky - Git hooks made easy 🐶 woof!
nyc - the Istanbul command line interface
jest-axe - Custom Jest matcher for aXe for testing accessibility ♿️🃏
WebdriverIO - Next-gen browser and mobile automation test framework for Node.js