Subject of the issue

I'm unable to properly test whether a component renders correctly when it uses defineAsyncComponent to lazily load a child component.
When I mount the parent component with vue-test-utils, the child component is never mounted.

Steps to reproduce

https://stackblitz.com/edit/github-iogvrfxn?file=src%2Fcomponents%2F__tests__%2FHelloWorld.spec.ts

Expected behaviour

The component shoud be visible when I use 'wrapper.html()'

Actual behaviour

The asyn component is never loaded

Possible Solution

What are the alternative solutions? Please describe what else you have considered?

I tried tu use Suspense and flushPromises without success