Jest: Jest can't resolve module

[gagarin55]

Do you want to request a _feature_ or report a _bug_?
Bug

What is the current behavior?

Having such require syntax in sources cause jest error:

const resBundle = require(
  'i18next-resource-store-loader!i18n/locales/index.js'
);

Error:

Test suite failed to run

    Cannot find module 'i18next-resource-store-loader!i18n/locales/index.js' from 'i18n.js'
...

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:169:17)

What is the expected behavior?
I want to run my tests !

Please provide your exact Jest configuration

"jest": {
    "coverageDirectory": "./coverage/",
    "collectCoverageFrom": [
      "src/**/*.js"
    ],
    "moduleNameMapper": {
      "\\.(scss|less)$": "identity-obj-proxy"
    },
    "modulePaths": [
      "<rootDir>/src/"
    ],
    "setupFiles": [
      "<rootDir>/src/__mocks__/localStorageMock.js"
    ]
  }

Is there any workarounds ?

Thank you!

[SimenB]

See https://facebook.github.io/jest/docs/en/webpack.html

Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.

[gagarin55]

I'm not asking help, I'm reporting a bug in Jest

[SimenB]

No you're not, you're trying to use webpack specific syntax outside of webpack, and I linked to the relevant docs

[horizon0514]

same problem...
any tips?

[m1m6]

Same here

[yangling1996]

same problem...

[rickhanlonii]

Going to try and explain this a little clearer. The file you're importing is:

i18next-resource-store-loader!i18n/locales/index.js

This import has two parts:

• i18next-resource-store-loader! webpack loader
• i18n/locales/index.js file

The first is a webpack loader. Jest does not know how to run webpack loaders, so we don't know how to require this file