如何在测试react-dnd时清除监视器？

import { render, unmountComponentAtNode } from 'react-dom';
import { DragDropContextProvider } from 'react-dnd';
import TestBackend from 'react-dnd-test-backend';

// 清除监视器的函数
const clearMonitor = (monitor) => {
  monitor.clearDragItem();
  monitor.clearDropResult();
};

// 测试用例
it('should clear monitor when unmounting', () => {
  const container = document.createElement('div');
  const backend = new TestBackend();
  const Component = () => (
    <DragDropContextProvider backend={backend}>
      <YourComponent />
    </DragDropContextProvider>
  );

  render(<Component />, container);
  const monitor = backend.getMonitor();

  // 进行一些拖放操作和断言

  unmountComponentAtNode(container);
  clearMonitor(monitor);
});