module.exports = (path, options) => { // Call the defaultResolver, so we leverage its cache, error handling, etc. return options.defaultResolver(path, { ...options, // Use packageFilter to process parsed `package.json` before the resolution (see https://www.npmjs.com/package/resolve#resolveid-opts-cb) packageFilter: (pkg) => { // see https://github.com/microsoft/accessibility-insights-web/pull/5421#issuecomment-1109168149 // see https://github.com/uuidjs/uuid/pull/616 // // jest-environment-jsdom 28+ tries to use browser exports instead of default exports, // but uuid/react-colorful only offers an ESM browser export and not a CommonJS one. Jest does not yet // support ESM modules natively, so this causes a Jest error related to trying to parse // "export" syntax. // // This workaround prevents Jest from considering uuid/react-colorful's module-based exports at all; // it falls back to uuid's CommonJS+node "main" property. // // Once we're able to migrate our Jest config to ESM and a browser crypto // implementation is available for the browser+ESM version of uuid to use (eg, via // https://github.com/jsdom/jsdom/pull/3352 or a similar polyfill), this can go away. // // How to test if this is needed anymore: // - comment it out // - run `yarn test` // - if all the tests pass, it means the workaround is no longer needed if (pkg.name === 'uuid' || pkg.name === 'react-colorful') { delete pkg['exports']; delete pkg['module']; } // Jest + jsdom acts like a browser (i.e., it looks for "browser" imports // under pkg.exports), but msw knows that you're operating in a Node // environment: // // https://github.com/mswjs/msw/issues/1786#issuecomment-1782559851 // // The MSW project's recommended workaround is to disable Jest's // customExportConditions completely, so no packages use their browser's // versions. We'll instead clear export conditions only for MSW. // // Taken from https://github.com/mswjs/msw/issues/1786#issuecomment-1787730599 if (pkg.name === 'msw') { delete pkg.exports['./node'].browser; } if (pkg.name === '@mswjs/interceptors') { delete pkg.exports; } return pkg; }, }); };