SyntaxError: Cannot use import statement outside a moduleをtransformIgnorePatternsで解消した

Vue Test Utilsとjestでテストを書いていたら、以下のエラーが出ました。

FAIL  tests/unit/Step2/template.spec.js
  ● Test suite failed to run

    Jest encountered an unexpected token

    This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.

    By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/en/ecmascript-modules for how to enable it.
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/en/configuration.html

    Details:

    /Users/okada/src/front/node_modules/@vueform/multiselect/dist/multiselect.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import{toRefs as e,ref as l,computed as t, …
                                                                                             ^^^^^^

    SyntaxError: Cannot use import statement outside a module

      36 | <script>
      37 | import { computed } from "vue";
    > 38 | import Multiselect from "@vueform/multiselect";
         | ^
      39 | import Condition from "./Condition";
      40 | 
      41 | export default {

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1350:14)
      at Object.<anonymous> (src/components/Step2/MultiSelect.vue:38:1)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        5.226 s
Ran all test suites matching /\/Users\/okada\/src\/front\/tests\/unit\/Step2\/template.spec.js/i with tests matching "Step2\.vue".

@vueform/multiselectが問題のようです。
おそらく以下をやればよいのかなと思うものの、いまいち書き方がわからない。

• To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.

jestのドキュメントを読むが難しい…

検索してこのページをみつけました。

真似して、jest.config.jsに以下を追記すると解決しました。

transformIgnorePatterns: ["/node_modules/(?!@vueform/multiselect)"],

jest.config.js全文はこんな感じです（関係ない記述もあります）

module.exports = {
  preset: "@vue/cli-plugin-unit-jest",
  setupFiles: ["./jest.setup.js"],
  transformIgnorePatterns: [
    "/node_modules/(?!@vueform/multiselect|vue3-carousel/dist/carousel.css)",
  ],
};