Head-to-Head: DOM Testing Library vs jest-dom Analysis
@testing-library/dom
v10.4.0(5 days ago)
@testing-library/dom is a testing utility that provides a simple and intuitive API for testing DOM elements in JavaScript applications. It encourages writing tests that closely resemble how users interact with the application, focusing on behavior rather than implementation details. This approach leads to more robust and maintainable tests.
@testing-library/jest-dom is a companion library for Jest that provides custom Jest matchers for asserting on DOM elements. It enhances the testing experience by offering a set of matchers specifically designed for testing user interfaces and interactions. These matchers allow you to write more expressive and readable tests for your web applications.
Alternatives:
chai-dom-+
expect-puppeteer-+
jest-enzyme-+
cypress-+
enzyme-+
react-testing-library-+
sinon-chai-+
mocha-+
ava-+
qunit-dom-+
Tags: testingjestdomuser-interfaceinteractions
Fight!
Purpose
@testing-library/dom is a package that provides utilities for testing DOM nodes and elements in a browser-like environment. It focuses on querying and interacting with DOM elements in a way that closely resembles how users interact with a web page. On the other hand, @testing-library/jest-dom is a package that extends the Jest testing framework with additional matchers and utilities specifically designed for testing DOM-related assertions.
Integration
@testing-library/dom can be used with any testing framework, including Jest. It provides a set of functions and utilities that can be used to interact with DOM elements and perform assertions. @testing-library/jest-dom, on the other hand, is specifically designed to be used with Jest. It extends Jest's expect function with additional matchers and utilities that make it easier to write assertions for DOM-related tests.
Functionality
@testing-library/dom provides a wide range of utilities for querying and interacting with DOM elements. It encourages writing tests that closely resemble how users interact with a web page, promoting best practices such as avoiding direct access to implementation details. @testing-library/jest-dom focuses on providing additional matchers and utilities that make it easier to write assertions for DOM-related tests. It includes matchers for checking element visibility, text content, attribute values, and more.
Community and Support
Both @testing-library/dom and @testing-library/jest-dom are part of the larger Testing Library ecosystem, which has gained significant popularity and community support. The Testing Library community is known for its focus on accessibility, best practices, and providing helpful resources and documentation. Both packages have active maintainers and receive regular updates and bug fixes.
Learning Curve
Using @testing-library/dom and @testing-library/jest-dom requires some familiarity with testing concepts and JavaScript. However, the Testing Library ecosystem promotes a user-centric approach to testing, which can make it easier for developers to write tests that are more maintainable and resilient. The documentation and examples provided by the Testing Library community are comprehensive and can help developers get up to speed quickly.
