Part of the installation steps are not needed if you use @vue/cli-plugin-unit-jest

[The4thLaw]

Documentation Feedback

The installation guide suggests using @vue/cli-plugin-unit-jest to run Jest tests. However, it goes on to list steps that are covered by that plugin (at least as of v4.5.0), such as :

• Installing dependences like vue-jest, @babel/core, babel-jest... which are transitive dependencies of @vue/cli-plugin-unit-jest. I come from the Maven world so I'm not sure what the practice is in npm but I would tend not to redeclare those dependencies.
• Setting up the moduleFileExtensions, moduleNameMapper and transform options, which are already set up by using preset: '@vue/cli-plugin-unit-jest'. That option is part of the default configuration after a call to vue add unit-jest, so it works out of the box.

My suggestion would be to have a section containing the instructions for manual setup and one for the instruction which are applicable in all cases (like the Code Coverage section).

Affected documentation page: https://vue-test-utils.vuejs.org/installation/#using-vue-test-utils-with-jest-recommended

[afontcu]

Hi! Yeah, we should clearly state if you use the vue-cli plugin there's no need to configure anything else 👍

Fancy to set up a PR fixing it? 😄

[The4thLaw]

Sure, I'll find time to submit something :)