lens/packages/infrastructure/jest/jest-28-resolver.js

/**
 * Copyright (c) OpenLens Authors. All rights reserved.
 * Licensed under MIT License. See LICENSE in root directory for more information.
 */
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 => {
      // This is a workaround for https://github.com/uuidjs/uuid/pull/616
      //
      // jest-environment-jsdom 28+ tries to use browser exports instead of default exports,
      // but uuid 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'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.
      switch (pkg.name) {
        case "uuid":
          delete pkg["exports"];
          delete pkg["module"];
          break;
      }

      return pkg;
    },
  });
};