我有一个应用程序可以获取用户列表并显示它们。该应用程序按预期工作,但测试失败:
用户.js
import React from 'react';
function Users() {
const [users, setUsers] = React.useState([]);
React.useEffect(() => {
fetch('https://jsonplaceholder.typicode.com/users')
.then(response => response.json())
.then(data => setUsers(data))
}, [])
return (
<div>
{users.map(user => {
return (
<h3 key={user.id}>{user.name}</h3>
)
})}
</div>
);
}
export default Users;
我已经使用此处列出的步骤设置了 MSW 。
handlers.js
import { rest } from 'msw';
export const handlers = [
rest.get('https://jsonplaceholder.typicode.com/users', (req, res, ctx) => {
return res(
ctx.json([
{ id: 1, name: 'Xabi Alonzo' },
{ id: 2, name: 'Lionel Messi' }
])
)
})
];
服务器.js
import { setupServer } from 'msw/node';
import { handlers } from './handlers';
export const server = setupServer(...handlers);
setupTests.js
import '@testing-library/jest-dom';
import { server } from './mocks/server.js';
beforeAll(() => server.listen());
afterEach(() => server.resetHandlers());
afterAll(() => server.close());
用户.test.js
import { render, screen } from '@testing-library/react';
import Users from './Users';
test('Renders a list of users', () => {
render(<Users />);
const text = screen.getByText('Xavi Alonzo');
expect(text).toBeInTheDocument();
});
我错过了什么?测试渲染的输出不显示模拟响应数据。
TestingLibraryElementError:无法找到带有文本的元素:Xavi Alonzo
<body>
<div>
<div />
</div>
</body>