Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

with-jest example doesnt work

See original GitHub issue

when i run test from npm scripts i have error

  C:\with-jest-app\jest.setup.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import { configure } from 'enzyme';
                                                                                                    ^
    
    SyntaxError: Unexpected token {
      
      at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/script_transformer.js:316:17)

Tech	Version
next	5.1.0
node	10.0.0

Issue Analytics

State:
Created 5 years ago
Comments:28 (8 by maintainers)

Top GitHub Comments

15reactions

paulomfrcommented, Aug 3, 2018

Hello there! I added this following .babelrc

{
  "env": {
    "development": {
      "presets": ["next/babel"]
    },
    "production": {
      "presets": ["next/babel"]
    },
    "test": {
      "presets": ["env", "react"]
    }
  }
}

and installed yarn add --dev babel-jest babel-preset-env babel-preset-react

Worked for me.

15reactions

binarykitchencommented, Jun 4, 2018

and now seeing this error

    Plugin 0 specified in "/Users/mick/code/urban-signs/node_modules/next/babel.js" provided an invalid property of "default" (While processing preset: "/Users/mick/code/urban-signs/node_modules/next/babel.js")

      at Plugin.init (node_modules/babel-core/lib/transformation/plugin.js:131:13)
      at Function.normalisePlugin (node_modules/babel-core/lib/transformation/file/options/option-manager.js:152:12)
      at node_modules/babel-core/lib/transformation/file/options/option-manager.js:184:30
          at Array.map (<anonymous>)
      at Function.normalisePlugins (node_modules/babel-core/lib/transformation/file/options/option-manager.js:158:20)
      at OptionManager.mergeOptions (node_modules/babel-core/lib/transformation/file/options/option-manager.js:234:36)
      at node_modules/babel-core/lib/transformation/file/options/option-manager.js:265:14
      at node_modules/babel-core/lib/transformation/file/options/option-manager.js:323:22
          at Array.map (<anonymous>)
      at OptionManager.resolvePresets (node_modules/babel-core/lib/transformation/file/options/option-manager.js:275:20)