jest/e2e/transform/esm-transformer/my-transform.mjs

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import {createRequire} from 'module';

const require = createRequire(import.meta.url);

const fileToTransform = require.resolve('./module');

export default {
  process(src, filepath) {
    if (filepath === fileToTransform) {
      return {code: 'module.exports = 42;'};
    }

    return {code: src};
  },
};