Sample repo that shows a problem where fireEvent.pointerEnter does not work for a preact component.

To reproduce

yarn install
yarn test

The following does not work

interface TestComponentProps {
    onPointerEnter: () => void
    onClick: () => void
}
export const TestComponent : FunctionComponent<TestComponentProps> = ({onPointerEnter, onClick}) => {
    return <div onPointerEnter={onPointerEnter} onClick={onClick} data-testid="test-div">My Div</div>
}

and the corresponding test

interface TestComponentProps {
    onPointerEnter: () => void
    onClick: () => void
}
export const TestComponent : FunctionComponent<TestComponentProps> = ({onPointerEnter, onClick}) => {
    return <div onPointerEnter={onPointerEnter} onClick={onClick} data-testid="test-div">My Div</div>
}

The problem appears that the listeners in jsdom are registered with PointerEnter while the event being fired is pointerenter.

Screenshot of the listeners in jsdoms EventTarget-impl.js invokeEventListeners