Bug: [TypeScript] `findAllComponents` type definition with Vue generic

[joris-fonck-loreal]

Describe the bug

When I use a library that ship d.ts files for Vue.js components, using vite-plugin-dts, and I'm trying to do unit tests with findAllComponents function on a generic component, I have a TS error:

No overload matches this call.

If I put a @ts-ignore, the test is a success.

To Reproduce

Here is a link to reproduce the error. I put all the detail on how to reproduce the issue in the README

Expected behavior

No TS error.

Related information:

  System:
    OS: Windows 10 10.0.22631
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz
    Memory: 3.93 GB / 15.74 GB
  npmPackages:
    @vue/test-utils: 2.4.1 => 2.4.1
    vitest: ^0.31.1 => 0.31.1
    vue: ^3.3.4 => 3.3.4

Additional context

[cexbrayat]

@joris-fonck-loreal Thanks for the repro.

We have a WIP PR to have better types that should land shortly, so maybe this will fix your issue as well. You can track the progress of #2242, and check again when it is merged and released. If the issue persists, then we'll take a closer look 👍

[joris-fonck-loreal]

Thanks a lot. I'm waiting for the release of the PR and I will come back to you afterwards.

Regards.

[chrisjfoss]

I am running into this issue as well. In the current state, it is difficult to work with generic components. I see there is a WIP PR to handle this, but it hasn't had any activity in the last 7 months. Is there a timeline to handle this? If not, what is preventing this from getting solved?

Thank you, really appreciate the work being put into this library!

[cexbrayat]

I think we first need https://github.com/vuejs/core/pull/9556 to land, then https://github.com/vuejs/test-utils/pull/2242 can be merged and released