App-test.js

import 'react-native';
import React from 'react';
import Profile from '../Components/Profile';
import App from '../App'
import renderer from 'react-test-renderer';
import Loading from '../Components/Loading';
import Repo from '../Components/Repo';
import { createStackNavigator } from '@react-navigation/stack';

const Stack = createStackNavigator();

test('renders correctly', ({}) => {
    // const dataFile = {
    //   iconUrl: "https://avatars.githubusercontent.com/u/42978932?u=b4a7beb2752bb6059cd13d12ca26d097767abf77&v=4",
    //   nameContent: null,
    //   userNameContent: null,
    //   bioContent: null,
    //   websiteLink: null,
    //   emailContent: null,
    //   createData: null,
    //   repoCount: 0,
    //   navigation: navigation
    // }
    const tree = renderer.create(
      <Loading />
    ).toJSON();
    expect(tree).toMatchSnapshot();
  });