Manual extend without using "extends"

[yvele]

Unfortunately I cannot use the recommended "extends": ["plugin:jest/recommended"] method because I'm using glob override config and extends is not supported, see eslint/eslint#8813

With ESLint v4 that wasn't a problem I just did some "manual" extend like that:

import { configs } from "eslint-plugin-jest";

export default {
  plugins : configs.recommended.plugins,
  env     : configs.recommended.env,
  "extends": [
    "plugin:jest/recommended"
  ]
  rules   : {
    ...configs.recommended.rules,
    ...OVERRIDES
  }
};

The problem came with ESLint v5 where I get the same error as #44

Environment key "jest/globals" is unknown

And I cannot @pauloborges use answer because of the glob override config and extends issue.

Is there a workaround? Why is this Environment key "jest/globals" is unknown appearing with ESLint v5? Is there a way to manually register jest/globals?

I'm a bit stuck 🤔

[yvele]

Ok I found a workaround, instead of using

      env: configs.recommended.env

Which is the exact same as

      env: {
        'jest/globals': true
      }

I'm actually using

      env: {
        'jest': true
      }

As described in https://eslint.org/docs/user-guide/configuring#specifying-environments

I let this issue open to make sure someone see it.. There maybe is a real problem.

Feel free to close

[SimenB]

Note that the jest globals from eslint are not matching the ones we have in our own list.

Not sure why it doesn't work normally, though

[Graham42]

I'm also seeing

Environment key "jest/globals" is unknown

with config

module.exports = {
  //...
  overrides: [
    {
      files: ["**/__tests__/**/*"],
      plugins: ["jest"],
      env: {
        "jest/globals": true,
      },
    },
  ]
}

versions:
[email protected]
[email protected]

[alias-mac]

Just for the record (in case someone has the same problem that I have) I was able to make this work by doing:

Object.assign({}, require('eslint-plugin-jest').configs.recommended, {
  files: ['node-tests/**/*.js'],
  plugins: ['jest'],
  env: {
    browser: false,
    node: true,
    jest: true,
  },
})

if I remove the env override, then it breaks like it is explained in comments above:

Object.assign({}, require('eslint-plugin-jest').configs.recommended, {
  files: ['node-tests/**/*.js'],
  plugins: ['jest'],
})

[hon2a]

Please note that support for extends in overrides has been added in ESLint 6. (So this may likely be closed.)

[G-Rath]

Closing, since we're on ESLint 7 now.