Jest encountered an unexpected token "export" in React

Current Behavior

The error Jest encountered an unexpected token when writing a test for a library that depends on another library, coming from the export statement.

This is a fresh repository. https://github.com/kjrocker/nx-issue-repro

Expected Behavior

Unit tests should work for libraries that depend on other libraries by default.

Steps to Reproduce

With my repository: Step 1: Clone https://github.com/kjrocker/nx-issue-repro Step 2: Run npm install && npx nx test feature-lib

How I made my repository: Created a TS workspace, installed @nrwl/react, created two react libraries, base-lib and feature-lib. Added the BaseLib component as a child of the FeatureLib component to create the dependency between them. Ran the tests, which failed.

Failure Logs

> nx run feature-lib:test

 FAIL   feature-lib  packages/feature-lib/src/lib/feature-lib.spec.tsx
  ● Test suite failed to run

    Jest encountered an unexpected token

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

    Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

    By default "node_modules" folder is ignored by transformers.

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
     • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/configuration
    For information about custom transformations, see:
    https://jestjs.io/docs/code-transformation

    Details:

    /Users/kevin.rocker/Developer/nx-test/packages/base-lib/src/index.ts:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){export * from './lib/base-lib';
                                                                                      ^^^^^^

    SyntaxError: Unexpected token 'export'

    > 1 | import { BaseLib } from '@nx-test/base-lib';
        | ^
      2 | import styles from './feature-lib.module.css';
      3 |
      4 | /* eslint-disable-next-line */

      at Runtime.createScriptFromCode (../../node_modules/jest-runtime/build/index.js:1796:14)
      at Object.<anonymous> (src/lib/feature-lib.tsx:1:1)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        1.217 s
Ran all test suites.

 ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

 >  NX   Ran target test for project feature-lib (3s)

    ✖    1/1 failed
    ✔    0/1 succeeded [0 read from cache]

Environment

 >  NX   Report complete - copy this into the issue template

   Node : 16.16.0
   OS   : darwin x64
   npm  : 8.19.1

   nx : 14.7.5
   @nrwl/angular : Not Found
   @nrwl/cypress : 14.7.5
   @nrwl/detox : Not Found
   @nrwl/devkit : 14.7.5
   @nrwl/eslint-plugin-nx : 14.7.5
   @nrwl/express : Not Found
   @nrwl/jest : 14.7.5
   @nrwl/js : 14.7.5
   @nrwl/linter : 14.7.5
   @nrwl/nest : Not Found
   @nrwl/next : Not Found
   @nrwl/node : Not Found
   @nrwl/nx-cloud : Not Found
   @nrwl/nx-plugin : Not Found
   @nrwl/react : 14.7.5
   @nrwl/react-native : Not Found
   @nrwl/schematics : Not Found
   @nrwl/storybook : 14.7.5
   @nrwl/web : 14.7.5
   @nrwl/workspace : 14.7.5
   typescript : 4.8.3
   ---------------------------------------
   Local workspace plugins:
   ---------------------------------------
   Community plugins:

[sebastiandg7]

Using the transform configuration for @nrwl/react generated apps works.

export default {
  displayName: 'my-lib',
  preset: '../../jest.preset.js',
  transform: {
    '^(?!.*\\.(js|jsx|ts|tsx|css|json)$)': '@nrwl/react/plugins/jest',
    '^.+\\.[tj]sx?$': ['babel-jest', { presets: ['@nrwl/react/babel'] }],
  },
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
  coverageDirectory: '../../coverage/libs/my-lib',
};

[ngoc199]

Using the transform configuration for @nrwl/react generated apps works.

export default {
  displayName: 'my-lib',
  preset: '../../jest.preset.js',
  transform: {
    '^(?!.*\\.(js|jsx|ts|tsx|css|json)$)': '@nrwl/react/plugins/jest',
    '^.+\\.[tj]sx?$': ['babel-jest', { presets: ['@nrwl/react/babel'] }],
  },
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
  coverageDirectory: '../../coverage/libs/my-lib',
};

It works. I wonder why this is not generated by nx?