jest-preset-preact

Jest preset containing all required configuration for writing tests for preact.

Features:

- Transpiles JSX to h()
- Aliases for react imports to point to preact/compat
- Automatically serialize Preact VNodes in snapshots
- Stub style imports (.css, .less, .sass/scss, etc)
- Add typeahead preview for filtering in jest's watch mode

Usage

Install it via npm or yarn:

``bash
npm install --save-dev jest-preset-preact


or via yarn


yarn add -D jest-preset-preact
`

...and add the preset to your jest.config.js file.

`js
// jest.config.js
module.exports = {
preset: 'jest-preset-preact',
};
`

You can override the default Babel config by providing your own Babel config file:

`js
// babel.config.js
module.exports = {
env: {
test: {
plugins: [
[
"@babel/plugin-transform-react-jsx",
{
runtime: "automatic",
importSource: "preact"
}
]
]
}
}
}
``

This, for example, would enable the runtime JSX transform instead of the classic.

License

MIT, see the LICENSE file.