@straw-hat/jest-config-chain v1.0.3

@straw-hat/jest-config-chain

Usage

You can start creating a Jest configuration. For this guide, our example base configuration will be jest.config.js in the root of our project directory.

// jest.config.js
const { JestConfigChain } = require('@straw-hat/jest-config-chain');

const config = new JestConfigChain();

config
  .setupFilesAfterEnv
    .add('app', '<rootDir>/jest.setup.js')
    .end()
  .testMatch
    .add('<rootDir>/tests/jest/**/*.test.(js|jsx|ts|tsx)')
    .end()
  .moduleNameMapper
    .set('^@/(.*)$', '<rootDir>/src/$1', { alias: 'appRoot' })
    .set('^image![a-zA-Z0-9$_-]+$', 'GlobalImageStub', { alias: 'images' })
    .end()
  .transform
    .set('^.+\\.(ts|tsx)$', '<rootDir>/node_modules/babel-jest', { alias: 'babel' })
    .end();

// config.toConfig() returns the raw object
module.exports = config.toConfig();