Describe the bug

To test our UI library, we have some backward compatibility tests, where we force a component to be renderer in svelte4, here is an example

<svelte:options runes={false} /> <script lang="ts">  import { Button } from '/@/lib';   export let onclick: () => void;  export let content: string | undefined; </script> <Button on:click={onclick} > {content} </Button>

When using this component inside our test.spec.ts as followed

import '@testing-library/jest-dom/vitest'; import { fireEvent, render } from '@testing-library/svelte'; import { expect, test, vi } from 'vitest'; import ButtonSvelte4Test from './ButtonSvelte4Test.svelte'; test('should render content', () => { const { getByText } = render(ButtonSvelte4Test, { onclick: vi.fn(), content: 'Dummy Button', }); const btn = getByText('Dummy Button'); expect(btn).toBeInTheDocument(); });

We get the following error when running svelte-check

Error: Type 'Mock<Procedure>' is not assignable to type 'never'. const { getByText } = render(ButtonSvelte4Test, { onclick: vi.fn(), content: 'Dummy Button', c:\Users\axels\Documents\github\redhat\podman-desktop\packages\ui\src\lib\button\ButtonSvelte4Test.spec.ts:30:5 Error: Type 'string' is not assignable to type 'never'. onclick: vi.fn(), content: 'Dummy Button', }) 

Removing the <svelte:options runes={false} /> files the error, but not what we want...

Reproduction

See above

Expected behaviour

The props should be properly typed

System Info

• OS: Windows
• IDE: Webstorm

Which package is the issue about?

svelte-check

Additional Information, eg. Screenshots

No response