react-testing-library，检查是否调用了组件方法

Question

使用'@testing-library/react'，

提供了以下组件：

const Home = () => {
   const submit = () => console.log('submit clicked');

   return (
     <div>
       Home
      <Button
        onClick={submit}
      >
        Submit
      </Button>
     </div>
   )
}

要完成下面的测试，必须添加什么断言？

it('reacts to a submit event', async () => {
    const { getByText } = render(<Home />);

    fireEvent.click(getByText(/submit/i));
  })