Jest test or override a method that calls an UI plugin

i was wondering if someone has an idea on how to test a method that calls an UI plugin like share from facebook.

For example i have this code:

class Component extends Component{
facebookShare(actionId) {
    const that = this;
    window.FB.ui({
        method: 'share',
        quote: 'quote',
        hashtag: "#hashtag",
        mobile_iframe: true,
        href: 'url.com',
    }, function (response) {
        if (response && !response.error_message) {
            that.props.setComplete(actionId);
            console.log('Posting completed.');
        } else {
            console.log('Error while posting.');
        }
    })
}
render(){
   return <ComponentThatCallsFacebookShare/>
}
}

The problem is that if i execute the test there is no way to reach the window.FB variable that creates only after the facebook autologin execute its. Maybe there is a special way to test this kind of function? I tried to override it but the override does not cover all the statements (See Img) of the function and of course i cant just execute it. =/

Hope someone have the answer ;) thanks