title: MouseEnter/MouseOver doesn't work with react-testing-library. How to test hover events with react-testing-library
body: <p>I have a ant-design dropdown which shows a list on hovering the element. I want to test the list inside the dropdown menu. I am using fireEvent.mouseOver() but it doesn't work. screen.debug() shows no menu. How to test hovering elements?</p>
  <p>Thanks in advance</p>