Testing that output emitters are properly set

[grosch]

In my HTML I have this code for a 3rd party component:

<igx-chip (remove)="chipRemove()">

As part of my unit tests, I want to make sure that the (remove) piece is set to the chipRemove method. I did the below, which seems to work. Is there a better way to handle this if I don't care about the actual data being emitted, just that it's being called?

it('should call chipRemove', () => {
    const chip = spectator.query(IgxChipComponent)
    expect(chip?.remove).toBeDefined()

    const spy = jest.spyOn(component, 'chipRemove').mockImplementation(jest.fn())
    chip?.remove.next({originalEvent: new MouseEvent('click'), owner: chip})
    expect(spy).toHaveBeenCalled()
})