Simulate a button click in Jest

Simulating a button click seems like a very easy/standard operation. Yet, I can't get it to work in Jest.js tests.

This is what I tried (and also doing it using jquery), but it didn't seem to trigger anything:

import { mount } from 'enzyme';

page = <MyCoolPage />;
pageMounted = mount(page);

const button = pageMounted.find('#some_button');
expect(button.length).toBe(1); // it finds it alright
button.simulate('click'); // nothing happens