Reputation: 4728

Jest configuration setupFilesAfterEnv option was not found

I'm trying to make Jest work again on a project developped 1 year ago and not maintained.

I have an error with path of setupFilesAfterEnvor transform.

the error i get when i run "yarn test"

$ jest __testsv2__ --config=./jest.config.js
● Validation Error:

Module <rootDir>/jest/setup.js in the setupFilesAfterEnv option was not found.
       <rootDir> is: /Users/alain/dev/ddf/release

Configuration Documentation:
https://jestjs.io/docs/configuration.html

error Command failed with exit code 1.

my filesystem, in /Users/alain/dev/ddf/release/ i have

  babel.config.js
  jest.config.js
  /jest
    /setup
    setup.js ( so  full path is : /Users/alain/dev/ddf/release/jest/setup.js ) 
    staticFileAssetTransform.js ( so full path is : /Users/alain/dev/ddf/release/jest/staticFileAssetTransform.js )

My package.json

{ ...
 "scripts": {
      "test": "jest __testsv2__ --config=./jest.config.js"
      ...
  }
}

babel.config.js

module.exports = function(api) {
   api.cache(false);
   const presets = ['@babel/preset-env', '@babel/preset-react'];    
   const plugins = [['@babel/proposal-object-rest-spread'],];

   return {
     presets,    plugins,   sourceMaps: "inline",
     ignore: [(process.env.NODE_ENV !== 'test' ?  "**/*.test.js" : null)    ].filter(n => n)
   };
 };

jest.config.js

 module.exports = {
  resolver: 'browser-resolve',
  clearMocks: true,
  moduleNameMapper: {    '\\.(css|less|styl|md)$': 'identity-obj-proxy'    },
  // A list of paths to modules that run some code to configure or set up the testing framework before each test
  // setupFilesAfterEnv: ['./jest/setup.js'], // don't work too
  setupFilesAfterEnv: ['<rootDir>/jest/setup.js'], 


  // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
  testPathIgnorePatterns: ['/node_modules/', '/__gql_mocks__/'],

  // A map from regular expressions to paths to transformers
  transform: {
    '^.+\\.js$': './jest/babelRootModeUpwardTransform.js',
    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': '<rootDir>/jest/staticFileAssetTransform.js',
  },
};

Upvotes: 29

Answers (5)

Denys Bielishev

Reputation: 31

It's incorrect setup in the IDE (webstorm is in my case). Go to Edit configuration and then edit working directory

Upvotes: 3

Shreyas Shivakumar

Reputation: 11

I was struggling with this issue too, after cracking my head around I discovered we can load the setup file using the command line arg itself. Run jest --setupFilesAfterEnv=<rootDir>/jest/setup.js and it will get discovered and loaded. Hope this helps.

Upvotes: 0

MatthewMartin

Reputation: 33193

I got this error when I had cded into a test folder and run ng test and I thought I was going to have to revert a lot of work. But it appears I was in the wrong folder.

So ng test isn't expected to run anywhere but root of yoru project and if you do, you get an unintelligible error message.

Upvotes: 2

Jason Landbridge

Reputation: 1442

For those coming here, make sure you prefix the path with <rootDir>

Like this:

setupFilesAfterEnv: ['<rootDir>/node_modules/@hirez_io/observer-spy/dist/setup-auto-unsubscribe.js']

Upvotes: 8

Kornelia Frey

Reputation: 101

You might want to delete your node modules, package-lock.json and run npm i again, I had a similar issue and that was a fix for me. Also try npm cache clean --force

Upvotes: 3

Jest configuration setupFilesAfterEnv option was not found

Answers (5)

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