When you use a React Portal, much of your component can be rendered outside the main DOM tree. Let’s see how we can use utilities provided by React Testing Library to allow us to select elements within the portal. To perform actions and assert on what’s rendered. Component: import Rea...
TestingLibraryElementError: Unable to find an accessible element with the role "blah" Here are the accessible roles: button: Name "Hello World": --- Hello World 这里要注意的是,我们并没有为 设置Role 而加上 role=button。因为这是隐式的 Role,下一节会详细说明。 建议:阅读...
What this library is not: A test runner or framework Specific to a testing framework (though we recommend Jest as our preference, the library works with any framework. SeeUsing Without Jest) NOTE: This library is built on top ofDOM Testing Librarywhich is where most of the logic behind the...
When you use a React Portal, much of your component can be rendered outside the main DOM tree. Let’s see how we can use utilities provided by React Testing Library to allow us to select elements within the portal. To perform actions and assert on what’s rendered. Component: import Rea...
React官方推荐testing-library简介和入门 简介 从React官方网站看测试概览。提到了两个比较重要的工具,一个是Jest、一个是React测试库。 Jest是一个JavaScript测试运行器。它允许你使用jsdom操作DOM。尽管jsdom只是对浏览器工作表现的一个近似模拟,对测试React组件来说它通常也已经够用了。
React Testing Library builds on top of DOM Testing Library by adding APIs for working with React components. Installation To get started with React Testing Library, you'll need to install it together with its peerDependency @testing-library/dom: ...
在现代的React中,Jest是最热门的JavaScript程序的测试框架,我们不可避免要去接触。如果是通过 create-react-app 来创建项目,则 Jest 及 React Testing Library 已经默认安装了,在package.json可以看到test script,我们可以通过npm test来运行测试。在此之前,我们先看下面的测试代码: ...
引入React-Testing-Library React-Testing-Library简介 React-Testing-Library 是一个为React应用编写测试的库。它基于Jest测试框架,提供更接近用户操作的测试方法,使测试更加自然和易懂。React-Testing-Library的核心思想是“模拟真实用户的行为”,即编写测试时应尽可能模仿真实用户与应用交互的方式。这样可以确保测试反...
testing-library 知识体系 package @testing-library/dom 部分衍生库,可搭配使用 @testing-library/jest-dom @testing-library/react @testing-library/user-event @testing-library/react-hooks DOM API 是主要的 API,用于查找元素 query API 类型声明 ...
React Testing Library是一个用于测试React组件的工具库。它提供了一组简单而强大的API,用于模拟用户与组件的交互,并对组件的输出进行断言。 React Testing Library的主要特点包括: 简单易用:React Testing Library的API设计简单直观,易于上手和使用。它遵循"测试组件应该像真实用户一样使用它们"的原则,使得测试更加贴近...