Модульное тестирование StencilJS с использованием ошибки выброса Jest

Тестовый пример Jest для прослушивания события click, испускаемого дочерним элементом, выдает ошибку

expect(jest.fn()).toHaveBeenCalled()

Expected number of calls: >= 1
Received number of calls:    0

// .spec.ts код

import { newSpecPage } from '@stencil/core/testing';
import { MyComponent } from './my-component';
import { MyEmbeddedComponent } from './my-embedded-component';

describe('click event', () => {
  let page;
  beforeEach(async () => {
    page = await newSpecPage({
      components: [MyComponent, MyEmbeddedComponent],
      html: '<my-component color="green"></my-component>'
    });
  });

  it('should emit click event', async () => {
    let callbackFn = jest.fn();

    page.doc.addEventListener('clickCompleted', callbackFn);
    const button = page.root.shadowRoot.querySelector('button');
    await button.dispatchEvent(new Event('clickCompleted'));
    await page.waitForChanges();
    expect(callbackFn).toHaveBeenCalled();
  });
});

// мой встроенный-component.ts

import { Component, Prop, h, Event, EventEmitter } from '@stencil/core';

@Component({
  tag: 'my-embedded-component'
})
export class MyEmbeddedComponent {
  @Prop() color: string;

  @Event() clickCompleted: EventEmitter;
  handleClickCompleted() {
    console.log('Emitting clickCompleted event');
    this.clickCompleted.emit(4);
  }

  render() {
    return <button onClick={this.handleClickCompleted.bind(this)}>I'm a child</button>;
  }
}

// мой-компонент.tsx

import { Component, h, Listen } from '@stencil/core';

@Component({
  tag: 'my-component',
  styleUrl: 'my-component.css',
  shadow: true
})
export class MyComponent {
  @Listen('clickCompleted')
  listenClickCompleted(e: CustomEvent) {
    console.log('Listening listenClickCompleted ', e.detail);
  }

  render() {
    return (
      <div class="hello">
        <my-embedded-component color="green"></my-embedded-component>
      </div>
    );
  }
}