Thanks toreact-testing-libraryour tests are free of implementation details, so when we refactor components to hooks we generally don't need to make any changes to our tests. However,useEffectis slightly differen
Jest 和 React Testing Library (RTL) 是前端开发中用于测试 React 应用的首选工具。Jest 是一个功能丰富的JavaScript测试框架,而React Testing Library 是一种提倡以用户角度编写测试的库,它鼓励测试组件的行为…
原文:https://css-tricks.com/testing-react-hooks-with-enzyme-and-react-testing-library/ 当你开始在应用中使用React Hooks时,你需要确保编写的代码是可靠的。确保代码没有bug的一种方法就是编写测试用例。测试React hooks与测试一般程序的方式没有太大区别。 在本教程中,我们将了解如何通过使用带有hooks的to-do...
npm install --save-dev @testing-library/react @testing-library/jest-dom jest 或者使用yarn命令: yarn add --dev @testing-library/react @testing-library/jest-dom jest 在项目中配置Jest和React-Testing-Library,通常需要在项目根目录创建一个jest.config.js文件,配置Jest的运行选项,例如指定测试文件的查找模...
2.测试React Hooks时可以使用@testing-library/react来进行测试 测试useContext时,可以使用<Context.Provider value={{ data: [], dispatch }}>来进行测试 table.tsx import{Table,TableHead,TableRow,TableCell,TableBody,Button,Checkbox,}from"@material-ui/core";import{useEffect,useContext,useState}from"react"...
通过create-react-app创建的应用,当我们执行Npm test的时候,会自动执行/src/App.test.js 可以看到App.test.js的逻辑如下: import { render, screen } from '@testing-library/react';import App from './App'; test('renders learn react link', () => { ...
index.test.jsx: import React from 'react'; import { render, cleanup, waitForElement } from '@testing-library/react'; import axios from 'axios'; import Hello from '.'; jest.mock('axios'); afterEach(cleanup); it('renders hello correctly', async () => { ...
To begin, install React Testing Library along with its dependencies: npm install --save-dev @testing-library/react @testing-library/jest-dom For the Yarn users: yarn add --dev @testing-library/react @testing-library/jest-dom Step 2: Set Up Jest DOM in Your Test Environment If using Create...
@testing-library/react: provides the APIs for testing React apps. @testing-library/user-event: provides advanced simulation of browser interactions. Open upApp.test.jslet’s take a look at its content. importReactfrom'react';import{render}from'@testing-library/react';importAppfrom'./App';test...
本文章使用React-Testing-Library (RTL)举例的内容可在NealXavier/React-Testing获取。 单元测试的意义 从经济成本上衡量,人员会流动,应用会增大,依赖手工的方式来应对响应力量的挑战是低效,从时间上来讲是不可能的。降低回归次数,提高经济效益。 检验代码是否是个好设计。毕竟在单元测试之前,肯定要实例化一个东西,假...