jest.config.js

module.exports = {
    rootDir: 'src',
    verbose: true,
    testRegex: '.test.js$',
    collectCoverage: true,
    coverageDirectory: '../coverage',
    coveragePathIgnorePatterns: ['/node_modules/'],
    transformIgnorePatterns: ['/node_modules/'],
    collectCoverageFrom: ['**/*.{js}', '!**/*.test.{js}']
}