React tests - Medium - App.test com enzyme

App.test.js

import React from 'react';
import App from './App';
import { mount } from 'enzyme';
import toJson from "enzyme-to-json"
import Home from './Home';

it("should render the homepage for the non logged in user", () => {
  const props = {
    isLoggedIn: false,
    username: null
  }
  const app = mount(<App {...props} />)
  
  // Checking output
  expect(app.find(Home)).toHaveLength(0)
  expect(app.find('p').at(0).text()).toEqual("Hello, visitor. Sign in to continue.")
})

it("should render the Homepage for the logged in user (Heisenberg)", () => {
  const props = {
    isLoggedIn: true,
    username: "Heisenberg"
  }
  const app = mount(<App {...props} />)

  // Checking output
  expect(app.find(Home)).toHaveLength(1)
  expect(app.find('p').at(0).text()).toEqual("Welcome, Heisenberg!")

  expect(app.find('li')).toHaveLength(4)
  expect(app.find('li').at(0).text()).toEqual("8am - Chemistry classes at school")
  expect(app.find('li').at(1).text()).toEqual("12:30pm - Meet Jesse for lunch")
  expect(app.find('li').at(2).text()).toEqual("15pm - Meet Gus at the Pollos Hermanos")
  expect(app.find('li').at(3).text()).toEqual("20pm - Dinner by the pool with Hank and Marie")
})

it("should render the Homepage for the logged in user without tasks", () => {
  const props = {
    isLoggedIn: true,
    username: "Jesse"
  }
  const app = mount(<App {...props} />)
  
  // Checking output
  expect(app.find(Home)).toHaveLength(1)
  expect(app.find('p').at(0).text()).toEqual("Welcome, Jesse!")

  expect(app.find('li')).toHaveLength(0)
})