Bug: @vue/test-utils doesn't require a specific vue version as peer dependency

[Gi11i4m]

Describe the bug
@vue/test-utils doesn't require a specific vue version as peer dependency. In a monorepo with multiple vue versions (possible with pnpm (and probably yarn as well) this caused @vue/test-utils to import the wrong vue version when using mount.

The problem was fixed when adding vue 3.x as peerDependency to @vue/test-utils using pnpm's packageExtensions.

To Reproduce
I can't share our code and since I'm not exactly sure what dependency structure is needed I can't take the time to set up a reproduction.

We have a monorepo library with vue2 packages, vue3 packages and shared packages (with code that can be shared between the two versions).

It seems to me that declaring peer dependencies is a good practice in general.

Expected behavior
I expect @vue/test-utils to always depend on the correct vue version by declaring peer dependencies.

[cexbrayat]

Hi @Gi11i4m

The peer dependency has been removed in #2364 by @qmonmert

@qmonmert @lmiller1990 can you explain why this was necessary?

[Gi11i4m]

Reading the commit message it seems like the peer dependencies were not removed for a valid reason. They're definitely not useless.

Seeing as @Akryum is describing the exact same problem, is it okay if I open a PR re-adding the peerDependencies, although with a much wider range since that's probably the reason they "generated warnings"?

[cexbrayat]

@Gi11i4m Yes, feel free to open a PR 👍

[qmonmert]

@Gi11i4m the reason was in this ticket https://github.com/jhipster/jhipster-lite/issues/9030

[Gi11i4m]

@qmonmert I see. Well, I'm pretty sure the issue could've been fixed as well by setting the peer dependency range to 3.x instead of 3.0.1. Peer dependencies shouldn't be so strict, but we also shouldn't nuke them 😅

Here's a PR with peer dependencies re-added but with a wide range to assure everyone can still update within their own Vue 3 version.

#2511