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Vue cli doesn't read Jest config file #6352

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@pooria-h

Description

@pooria-h

Version

4.5.4

Environment info

System:
    OS: macOS 11.0.1
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
  Binaries:
    Node: 14.15.0 - ~/.nvm/versions/node/v14.15.0/bin/node
    Yarn: Not Found
    npm: 6.14.8 - ~/.nvm/versions/node/v14.15.0/bin/npm
  Browsers:
    Chrome: 89.0.4389.82
    Edge: Not Found
    Firefox: 86.0
    Safari: 14.0.1
  npmPackages:
    @intlify/vue-i18n-loader: ^1.0.0 => 1.0.0
    @vue/babel-helper-vue-jsx-merge-props:  1.2.1
    @vue/babel-helper-vue-transform-on:  1.0.0-rc.2
    @vue/babel-plugin-jsx:  1.0.0-rc.3
    @vue/babel-plugin-transform-vue-jsx:  1.2.1
    @vue/babel-preset-app:  4.5.9
    @vue/babel-preset-jsx:  1.2.4
    @vue/babel-sugar-composition-api-inject-h:  1.2.1
    @vue/babel-sugar-composition-api-render-instance:  1.2.4
    @vue/babel-sugar-functional-vue:  1.2.2
    @vue/babel-sugar-inject-h:  1.2.2
    @vue/babel-sugar-v-model:  1.2.3
    @vue/babel-sugar-v-on:  1.2.3
    @vue/cli-overlay:  4.5.9
    @vue/cli-plugin-babel: ~4.5.4 => 4.5.9
    @vue/cli-plugin-eslint: ~4.5.4 => 4.5.9
    @vue/cli-plugin-router: ~4.5.4 => 4.5.9
    @vue/cli-plugin-unit-jest: ^4.5.11 => 4.5.11
    @vue/cli-plugin-unit-mocha: ~4.5.4 => 4.5.9
    @vue/cli-plugin-vuex: ~4.5.4 => 4.5.9
    @vue/cli-service: ~4.5.4 => 4.5.9
    @vue/cli-shared-utils:  4.5.9 (4.5.11)
    @vue/component-compiler-utils:  3.2.0
    @vue/eslint-config-prettier: ^6.0.0 => 6.0.0
    @vue/preload-webpack-plugin:  1.1.2
    @vue/test-utils: ^1.1.2 => 1.1.2
    @vue/web-component-wrapper:  1.2.0
    eslint-plugin-vue: ^6.2.2 => 6.2.2
    jest-serializer-vue:  2.0.2
    vue: 2.6.12 => 2.6.12
    vue-cli-plugin-i18n: ^1.0.1 => 1.0.1
    vue-cli-plugin-vuetify: ^2.0.8 => 2.0.8
    vue-color: ^2.8.1 => 2.8.1
    vue-eslint-parser:  7.2.0
    vue-hot-reload-api:  2.3.4
    vue-i18n: 8.21.0 => 8.21.0
    vue-i18n-extract:  1.0.2
    vue-jest:  3.0.7
    vue-loader:  15.9.5 (16.1.0)
    vue-router: 3.4.3 => 3.4.3
    vue-style-loader:  4.1.2
    vue-template-compiler: ^2.6.12 => 2.6.12
    vue-template-es2015-compiler:  1.9.1
    vuejs-noty: 0.1.3 => 0.1.3
    vuetify: 2.3.21 => 2.3.21
    vuetify-loader: ^1.6.0 => 1.6.0
    vuex: 3.5.1 => 3.5.1
  npmGlobalPackages:
    @vue/cli: 4.5.9

Steps to reproduce

This is the command I'm running:

vue-cli-service test:unit

This is the content of jest.config.js:

module.exports = {
  preset: '@vue/cli-plugin-unit-jest',
  transform: {
    "^. \\.js$": "babel-jest",
    ". \\.(css||scss|png|jpg|ttf|woff|woff2|svg)$": "jest-transform-stub"
  }
}

The documentation says by default CLI reads this file but when I'm passing options in this file or removing its content completely, nothing happens.
Also I've tried passing the options through package.json file but nothing happens.

"jest": {
    "transform": {
      "^. \\.js$": "babel-jest",
      ". \\.(css|scss|png|jpg|ttf|woff|woff2|svg)$": "jest-transform-stub"
    }
  },

What is expected?

To read the config file and an option that logs that this file is reading on the runtime.

What is actually happening?

Doesn't read the config file

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