@vue/vue3-jest: Error when using second script tag to export a variable

I have to add a second script tag because I need to export a variable for usage in storybook and jest. In storybook all is well, however Jest gives me issues. I followed the readme exactly. I’m guessing the transform doesn’t handle multiple script tags. Here’s the relevant info.

.vue file

<script>
export const storeMod = 'myVuexModuleNamespace';
... other imports
</script>

<script setup>
...
</script>

jest.config.js

transform: {
  '^.+\\.vue$': '@vue/vue3-jest',
},

Error message in Jest

  ● Test suite failed to run

    Jest encountered an unexpected token

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

    Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

    By default "node_modules" folder is ignored by transformers.

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
     • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
     • 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/configuration
    For information about custom transformations, see:
    https://jestjs.io/docs/code-transformation

    Details:

    /Users/... my file
          ^
    SyntaxError: Identifier 'storeMod' has already been declared

[Adnan-kreiker]

Any updates on this? I’m having the same issue here, but I’m using vue 2.7 , I’m using a second script tag to add name property to a component.

[jess-ika]

On our side, we switched from jest to vitest