Jest Test for EventEmitter emitted fails in --next

[Jefftopia]

Stencil version:

 @stencil/core@1.9.0-11

I'm submitting a:

[ X] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://stencil-worldwide.herokuapp.com/ or https://forum.ionicframework.com/

Current behavior:
I ran only e2e tests for EventEmitter. Without --next pass, it passes; with --next, it fails.

Expected behavior:
Tests should pass.

Steps to reproduce:

1. Clone the project here: https://github.com/jagreehal/stencil-how-to-test-components/blob/master/src/components/testing-event-emitter/testing-event-emitter.tsx
2. Update to stencil-next, npm install -S @stencil/core@next
3. Install deps
4. Run e2e tests

Related code:
Linked in the repo.