通过推送url在React中测试BrowserRouter

npm install react-router-dom

import React from 'react';
import { BrowserRouter, Route } from 'react-router-dom';

function App() {
  return (
    <BrowserRouter>
      <Route exact path="/" component={Home} />
      <Route path="/about" component={About} />
      <Route path="/contact" component={Contact} />
    </BrowserRouter>
  );
}

import React from 'react';
import { render, screen } from '@testing-library/react';
import { BrowserRouter, Route } from 'react-router-dom';

import App from './App';

test('renders home page', () => {
  render(
    <BrowserRouter>
      <Route exact path="/" component={App} />
    </BrowserRouter>
  );

  // 断言页面上是否存在Home组件的内容
  expect(screen.getByText(/Home/i)).toBeInTheDocument();
});

test('renders about page', () => {
  render(
    <BrowserRouter>
      <Route path="/about" component={App} />
    </BrowserRouter>
  );

  // 断言页面上是否存在About组件的内容
  expect(screen.getByText(/About/i)).toBeInTheDocument();
});

test('renders contact page', () => {
  render(
    <BrowserRouter>
      <Route path="/contact" component={App} />
    </BrowserRouter>
  );

  // 断言页面上是否存在Contact组件的内容
  expect(screen.getByText(/Contact/i)).toBeInTheDocument();
});