Jest not covered the function inside useEffect

问题

I want to test a function that fetch something from server, it looks like this :

import React, { useEffect } from 'react';

function Component1() {

    useEffect(() => {
        fetchSomeData();
    }, [])

    const fetchSomeData = async () =>{
        console.log('fetchSomeData')
       

    }
    return <div>Component1</div>;
}

export default Component1;

and test file:

import React from 'react';
import { render, unmountComponentAtNode } from 'react-dom';
import { act } from 'react-dom/test-utils';
import Enzyme, { shallow } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
import Component1 from './Component1.js';

Enzyme.configure({ adapter: new Adapter() });

describe('Name of the group', () => {
    it('should ', () => {
        const wrapper = shallow(<Component1 />);
        expect(wrapper.exists());
        
    });
});

[![picture1][1]][1]

but the test is not covered 'fetchSomeData', any one knows why?

I referred this answer : test restapi inside useeffect in jest try to mock a fn and call it , but I got this:

来源：https://stackoverflow.com/questions/64604039/jest-not-covered-the-function-inside-useeffect