feat: jest v27 support for vue2-jest

[cexbrayat]

Followup, and quasi identical PR to #343

@lmiller1990 if that looks good, it would be nice to have an alpha release. I think I need it to update the CLI to jest 27 (as it looks like I need to bump Vue 3 and Vue 2 projects at the same time)

[lmiller1990]

I will do this week, sorry about the delay.

[lmiller1990]

Alpha release will be in 24-48h! Thanks for the patience.

[lmiller1990]

@cexbrayat just to confirm and make sure we are on the same page, we want this released under vue-jest@27.0.0-alpha.0?

vue2-jest is not available as you pointed out (I think it was you). I need to email npm to get access: https://www.npmjs.com/package/vue2-jest

[cexbrayat]

@lmiller1990 No, I don't think we should release it as vue-jest v27. It would be too confusing in my opinion to have vue-jest v4 for vue 2, v5 for vue 3 and v27 for vue 2 again. If we publish vue-jest v27, it should be the same as vue3-jest v27.

Ideally, it would be nice to have vue2-jest back from NPM, or maybe we could publish this under @vue (@vue/vue2-jest and @vue/vue3-jest?).

[afontcu]

Publishing under @vue looks like a valid solution? It makes total sense as it in an official package

[lmiller1990]

Ok, I will publish it under vue for now (not sure if need any special permissions, I'll give it a shot).

We will need to reach out to npm regarding vue2-jest. I will look into this, although it might need to come from a @vuejs.org email. Let's see how it goes. I'll report back.

[lmiller1990]

Ok, I pushed under @vue/vue2-jest! 🎉

I also emailed npm. Anyway, I think we should use @vue namespace moving forward - feels more clean to have all the official packages there.