fix(runtime-utils): ensure event listeners props are called

[n-rowe]

🔗 Linked issue

Resolved #572

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

With the change to resolve #572 the internal emit function for the component was changed to use the root component so that emits can be picked up by vitest.

This had the side-effect of breaking user-passed event listeners as props to the component:

const component = await mountSuspended(MyComponent, {
  props: {
    'onUpdate:modelValue': async e => component.setProps({ modelValue: e }),
  },
})

To resolve this I changed the internal component emit to call both the original emit and the root component emit.
I've also added a new unit test for this case.

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/@nuxt/test-utils@1135

commit: 55d0dd6

[danielroe]

thank you!