with-jest results in jest syntax / unexpected token while testing react mounts

[xzilja]

Examples bug report

Example name

with-jest

Describe the bug

with-jest example implementation results in following error

SyntaxError: /Users/ilja/Documents/Repositories/alacrity-frontend/packages/oasis/tests/index.test.js: Unexpected token (6:20)

  4 | 
  5 | it('App renders correctly', () => {
> 6 |   const app = mount(<App />);
    |                     ^
  7 |   expect(app).toMatchSnapshot();
  8 | });
  9 | 

To Reproduce

.babelrc

{
  "env": {
    "test": {
      "presets": [["next/babel", { "preset-env": { "modules": "commonjs" } }]],
      "plugins": ["@babel/plugin-transform-flow-strip-types"]
    },
    "development": {
      "presets": ["next/babel"],
      "plugins": ["@babel/plugin-transform-flow-strip-types"]
    },
    "production": {
      "presets": ["next/babel"],
      "plugins": ["@babel/plugin-transform-flow-strip-types"]
    }
  }
}

jest.config.js

module.exports = {
  testPathIgnorePatterns: ['.next/', 'node_modules/'],
  setupFiles: ['<rootDir>/enzyme.config.js'],
  moduleNameMapper: {
    '\\.(css|less)$': 'identity-obj-proxy',
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$':
      '<rootDir>/__mocks__/file.js',
  },
  snapshotSerializers: ['enzyme-to-json/serializer'],
};

enzyme.config.js

import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

Enzyme.configure({ adapter: new Adapter() });

package.json

  "devDependencies": {
    "@babel/core": "7.0.0-beta.53",
    "@babel/plugin-transform-flow-strip-types": "7.0.0-beta.53",
    "babel-core": "^7.0.0-0",
    "babel-eslint": "8.2.6",
    "babel-jest": "23.4.0",
    "enzyme": "3.3.0",
    "enzyme-adapter-react-16": "1.1.1",
    "enzyme-to-json": "3.3.4",
    "flow-bin": "0.76.0",
    "jest": "23.4.0",
    "jest-styled-components": "5.0.1"
  }

Expected behavior

Should pass, as babel is set up to handle react components properly?

System information

• OS: macOS
• Version of Next.js: 6.1.1

[dbrudner]

Any update on this? I'm getting a similar error on my own project.

[alehatsman]

@timneutkens
Can this one be closed?

[timneutkens]

Thanks 👍