// hidden-message.jsimport*asReactfrom'react'// NOTE: React Testing Library works well with React Hooks and classes.// Your tests will be the same regardless of how you write your components.functionHiddenMessage({children}){const[showMessage,setShowMessage]=React.useState(false)return(Show Messa...
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而不是内部实现细节。 安装和配置 首先,确保你已经安装了react, react-dom, jest, @testing-library/react,和 @testing-library/jest-dom。在你的package.json中添加以下依赖: npm install ...
npminstall--save-dev @testing-library/react @testing-library/dom @types/react @types/react-dom The problem You want to write maintainable tests for your React components. As a part of this goal, you want your tests to avoid including implementation details of your components and rather foc...
安装React-Testing-Library非常简单,只需要在项目中使用npm或yarn来添加依赖。以npm为例: npm install --save-dev @testing-library/react @testing-library/jest-dom 这个命令将React-Testing-Library及其配套的Jest适配器安装到你的项目中。接着,确保在你的package.json文件中配置了测试脚本,例如: "scripts": { "...
npm install --save react react-dom npm install --save-dev jest @testing-library/react @testing-library/jest-dom 安装完所需的库之后,在项目的根目录下创建一个jest.config.js文件,并配置Jest设置: module.exports = { moduleFileExtensions: ['js', 'jsx', 'json', 'node'], ...
This project is inspired byReact Testing Library. Tested to work with Jest, but it should work with other test runners as well. Installation Open a Terminal in your project's folder and run: #Yarn install:yarn add --dev @testing-library/react-native#NPM installnpm install --save-dev @tes...
npm install --save-dev jest jest-environment-jsdom @testing-library/react @testing-library/jest-dom jest-environment-jsdom[10]:Jest 的默认环境是 Node.js 环境[11]。如果正在构建 Web 应用程序,可以使用 jsdom 来代替浏览器类似的环境。要开始使用 JSDOM 测试环境,如果尚未安装,则必须安装 jest-environm...
这里选用jest和testing-library,我们通过 create-react-app 创建的 react 脚手架已经集成了单元测试的能力。 首先查看项目中的 setupTests.ts 有如下 Jest 断言增强的导入语句 import '@testing-library/jest-dom/extend-expect'; 然后在 Button 文件夹下增加 index.test.tsx 文件编写测试用例,先判断是否成功渲染一个...
使用react-testing-library测试 我们将为此写三个测试: 1、初始待办事项的渲染 2、我们可以加一个新的待办事项 3、我们可以删除一个待办事项 首先,我们安装需要的安装包: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 npm install --save-dev @testing-library/jest-dom @testing-library/react 接下来,我...
npm install --save-dev @testing-library/react-hooks # if you're using yarn yarn add --dev @testing-library/react-hooks Peer dependencies react-hooks-testing-librarydoes not come bundled with a version ofreactto allow you to install the specific version you want to test against. It also do...