This module is distributed via [npm][npm] which is bundled with [node][node] and should be installed as one of your project's devDependencies:

npm install --save-dev jest-image

or

yarn add --D jest-image

Import jest-image/extend-expect once (for instance in your tests setup file) and you're good to go:

import 'jest-image/extend-expect'

Alternatively, you can selectively import only the matchers you intend to use, and extend jest's expect yourself:

import { toMatchImageBuffer } from 'jest-image'

expect.extend({ toMatchImageBuffer })

toMatchImageSnapshot(buffer: Buffer)

Example.

The most powerful way to compare image snapshots.

• Add more examples

toMatchImageBuffer(buffer: Buffer)

Example.

It's the fastest way to compare images.

It takes less than 1ms to get a result.

toMatchMarkupToImageSnapshot(html: string)

• Implement me.

• Add documentation.