Presets
The presets
jest-preset-angular
comes with a preset, covering most of the project's base configuration:
Preset name | Description |
---|---|
jest-preset-angular | TypeScript, JavaScript and HTML files (js , .ts , .html ) will be transformed by ts-jest to CommonJS syntax. |
Basic usage
In most cases, simply setting the preset
key to the desired preset name in your Jest config should be enough to start
using TypeScript with Jest (assuming you added jest-preset-angular
to your devDependencies
of course):
// jest.config.js
module.exports = {
// [...]
preset: 'jest-preset-angular',
};
Advanced
All presets come with default ts-jest
config options.
If you want to override any of the options, you'll need to use the JavaScript version of Jest config,
copy the original options and override the options you need:
If you choose to override globals
in order to point at a specific tsconfig, you will need to make sure that original ts-jest
options provided through the default preset are defined to the globals.ts-jest
section too, otherwise you will get
errors.
// jest.config.js
const { defaults: jestNgPreset } = require('jest-preset-angular');
module.exports = {
// [...]
globals: {
'ts-jest': {
...jestNgPreset.globals['ts-jest'],
// [...your overriden options]
},
},
};