Tramvai test unit jest

Jest preset for unit-testing

Installation

Install package:

1npm i --save-dev @tramvai/test-unit-jest

Add new preset to your jest.config:

1module.exports = {
2  preset: '@tramvai/test-unit-jest',
3};

Explanation

This presets implements next settings:

• use jest-circus as testRunner
• default testEnvironment is node
• uses @swc-node/jest for transformation
• css files are mapped with identity-obj-proxy
• image files are mapped to empty string

How To

Override testEnvironment for file

Based on jest doc

Just add at the start of test file following comment:

1/**
2 * @jest-environment your-environment
3 */