我有一个react native组件OrdersScreen，我无法测试，因为组件在setState时更新：setRenderLoader(false)在React.useEffect（）钩子中被调用。

const OrdersScreen = ({ navigation }) => {
  let [renderLoader, setRenderLoader] = React.useState(true);
  let [ordersInfo, setOrdersInfo] = React.useState([]);
  React.useEffect(() => {
    ordersController.getOrdersForAgent() // some API call
      .then((res) => {
        console.log("getOrdersForAgent res", res);
        setOrdersInfo(res);
        if (res)
          res.forEach(ord => dispatch(addOrder(ord)));
        setRenderLoader(false);
      })
      .catch((err) => {
        console.log("getOrdersForAgent err", err);
      });
  }, []);
return (
    <View
      style={ordersScreenStyle.container}>
      {renderLoader
        ?
        (<Loader />)
        :
        (<SectionList
          ...
        />)}
    </View>

字符串
下面是我的测试代码：

import renderer from 'react-test-renderer';
import {act} from 'react-test-renderer'

describe('<OrdersScreen/>', () => {
    test('Verify order item', async () => {
        const ORDER_ITEMS = DEFAULT_VALUE;
        ordersController.getOrdersForAgent = jest.fn(() => Promise.resolve(ORDER_ITEMS));
        const setRenderLoader = jest.fn();

        let component;
        await act(async () => {
            //render with redux just wraps renderer.create(component) with a redux store
            component = await renderWithRedux(<OrdersScreen />);
        })
        const root = component.root;
        let tree = component.toJSON();
        console.log('tree', tree);
        if (store.getState().ordersReducer.length === 0) {
            expect(setRenderLoader).not.toHaveBeenCalled();
        }
        else {
            expect(setRenderLoader).not.toHaveBeenCalledWith(false);
        }


    })
})

型
我得到下面的错误：

Consider adding an error boundary to your tree to customize error handling behavior.
    Visit https://reactjs.org/link/error-boundaries to learn more about error boundaries.

      142 |         if (res)
      143 |           res.forEach(ord => dispatch(addOrder(ord)));
    > 144 |         setRenderLoader(false);

型
有没有人能给予点提示，说明如何测试这个组件？我对这方面很陌生。任何帮助都是感激的。