Find should return root node if it's a match

Version

1.0.0-beta.32

Reproduction link

https://codesandbox.io/s/clever-bush-v4p5i

Steps to reproduce

1. Create a child component which should emit an event
2. Create a wrapper component which will render directly only the child component
3. Set a listener for this created event on the wrapper

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Then go to the tests

1. Use shallowMount to create the wrapper
2. Stub the event handler function using wrapper.setMethods
3. Find and emit the event wrapper.find('Child-stub').vm.$emit('your-event')
4. Assert if event handler function have been called

What is expected?

It's expected the handler function be called

What is actually happening?

It looks when we create a Wrapper component which renders directly a Child component, and then, when the child component emits an event, the wrapper won't call the handle function

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On the reproduction link, there are two Wrappers

• Wrapper doesn't work
• Wrapper2 works, because I moved my ChildComponent to an <div>

Maybe this can be related with https://github.com/vuejs/vue-test-utils/issues/650#issuecomment-597197194