|
- Jest · Delightful JavaScript Testing
Jest is a JavaScript testing framework designed to ensure correctness of any JavaScript codebase It allows you to write tests with an approachable, familiar and feature-rich API that gives you results quickly
- Getting Started - Jest
Jest can be used in projects that use webpack to manage assets, styles, and compilation webpack does offer some unique challenges over other tools Refer to the webpack guide to get started
- Testing React Apps · Jest
See React: Function and Class Components Reminders that with Class components, we expect Jest to be used to test props and not methods directly Now let's use React's test renderer and Jest's snapshot feature to interact with the component and capture the rendered output and create a snapshot file:
- Globals - Jest
In your test files, Jest puts each of these methods and objects into the global environment You don't have to require or import anything to use them However, if you prefer explicit imports, you can do import {describe, expect, test} from '@jest globals'
- Testing Web Frameworks · Jest
Jest is a universal testing platform, with the ability to adapt to any JavaScript library or framework In this section, we'd like to link to community posts and articles about integrating Jest into popular JS libraries
- Jest CLI Options
The jest command line runner has a number of useful options You can run jest --help to view all available options Many of the options shown below can also be used together to run tests exactly the way you want Every one of Jest's Configuration options can also be specified through the CLI
- Configuring Jest · Jest
Jest runs the code of your project as JavaScript, hence a transformer is needed if you use some syntax not supported by Node out of the box (such as JSX, TypeScript, Vue templates)
- Jest Platform · Jest - jestjs. io
You can cherry pick specific features of Jest and use them as standalone packages Here's a list of the available packages:
|
|
|