https://github.com/vuejs/vue-jest/blob/98882455e2ade39efe9b8cf683b13a5f71ffb7c2/lib/load-babel-config.js#L33-L35 The order of operations in the babel-config-loader makes it impossible to skip configuring babel if the `babel.config.js` file is found. The README states that setting the `babelConfig` property to `false` on the `globals[vue-jest]` object should result in babel being skipped entirely. Similarly, if one wishes to provide a different path to the config file or a config object, they will also be ignored.