Related

Snapshot Testing

jest

Test component snapshots

React Testing

jest

Test React components

DOM Testing

jest

Test DOM elements

jest/async

Async Testing

Test asynchronous code

jest
async
promises

Command

it("should resolve", async () => { ... })

Explanation

Jest handles async testing with async/await and promise matchers for testing asynchronous operations.

Examples

Test async function

it("should resolve", async () => { ... })

Test promise resolution

await expect(promise).resolves.toBe(value)

Test promise rejection

await expect(promise).rejects.toThrow()

More

Install Jest

jest

Install Jest testing framework

Coverage Report

jest

Generate test coverage report

Mock Functions

jest

Create mock functions for testing