How to change external useState when mocking component?

[luca-costa-retex]

I have a component that changes its state by watching a useState that gets changed from outside. How do I unit test it?

[Rigo-m]

@danielroe I too am looking into this issue, and I can't quite understand how to test these kind of side effects.
Do you need a quick reproduction?

[danielroe]

That would be great! And an issue 🙏

[Rigo-m]

Is there a stackblitz ready at hand?

[danielroe]

Yes, one of these:

👉 https://stackblitz.com/github/nuxt/test-utils/tree/main/examples/app-vitest
👉 https://stackblitz.com/github/nuxt/test-utils/tree/main/examples/app-jest
👉 https://stackblitz.com/github/nuxt/test-utils/tree/main/examples/module