moduleNameMapper of Jest config links to files that do not exist

When creating a new project with the Jest test harness (alone or with other harnesses) I run into errors when trying to run the tests.

To Reproduce Steps to reproduce the behavior:

1. Create a new project: quasar create my_project --branch next
   • Sass with SCSS syntax
   • ESLint (Prettier)
   • Vuex
   • Axios
   • Vue-i18n
   • use Yarn
2. cd my_project
3. Install test harnesses: quasar ext add @quasar/testing
   • Jest
   • Cypress
   • Quality
   • Security
   • Overwrite babel.config.js and use additional .babelrc
   • Extra "scripts" in your package.json
   • SFC webpack <test> loader
   • Cypress: extra "scripts" in your package.json
   • Lighthouse: extra "scripts" in your package.json
   • install the OWASP ZAP Heads Up Display
   • configure with Chrome
4. Run quasar test --unit jest
5. See error:

 FAIL  test/jest/__tests__/App.spec.js
  ● Test suite failed to run

    Configuration error:
    
    Could not locate module vue mapped as:
    vue/dist/vue.common.js.
    
    Please check your configuration for these entries:
    {
      "moduleNameMapper": {
        "/^vue$/": "vue/dist/vue.common.js"
      },
      "resolver": undefined
    }

      at createNoMappedModuleFoundError (node_modules/jest-resolve/build/index.js:551:17)
      at Object.<anonymous> (node_modules/@vue/test-utils/dist/vue-test-utils.js:5:11)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        1.004 s
Ran all test suites.

The files that appear in node_modules/vue/dist/ are:

vue.cjs.js
vue.cjs.prod.js
vue.d.ts
vue.esm-browser.js
vue.esm-browser.prod.js
vue.esm-bundler.js
vue.global.js
vue.global.prod.js
vue.runtime.esm-browser.js
vue.runtime.esm-browser.prod.js
vue.runtime.esm-bundler.js
vue.runtime.global.js
vue.runtime.global.prod.js

If I map to another file instead, I get the following error:

Cannot find module 'vue-template-compiler' from 'node_modules/@vue/test-utils/dist/vue-test-utils.js'

    Require stack:
      node_modules/@vue/test-utils/dist/vue-test-utils.js
      test/jest/__tests__/App.spec.js

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:306:11)
      at Object.<anonymous> (node_modules/@vue/test-utils/dist/vue-test-utils.js:6:27)

In that directory, vue-template-compiler is not present either.

Expected behavior The test suite should run the tests without configuration errors.

Platform Quasar Version: 3.0.0-beta.6 @quasar/app Version: 2.0.8 OS: macOS 10.15.7 Node: 12.20.0 NPM: 7.5.0 Yarn: 1.22.10

Additional context I have reproduced this several times from fresh projects.

[cbleek]

was done in https://github.com/quasarframework/quasar-testing/tree/next/packages/unit-jest

Thank you

[cbleek]

same issue here.

maybe the issue should be reopened