jest-dom is a popular testing utility for Jest, specifically designed to enhance the experience of testing DOM nodes in React applications. It provides a set of custom matchers that extend Jest's built-in assertions, allowing developers to write more expressive and readable tests for their components. With jest-dom, you can easily assert the presence, state, and attributes of DOM elements, making your tests more intuitive and easier to maintain. While jest-dom is a powerful tool for testing, there are several alternatives available in the React testing ecosystem. Here are a few notable ones:

• chai-dom is an extension for the Chai assertion library that adds custom matchers for asserting on DOM elements. It provides a similar functionality to jest-dom, enabling developers to write more readable assertions for their DOM elements. If you are already using Chai for your testing framework, chai-dom is a great choice to enhance your DOM assertions and improve the overall readability of your tests.
• enzyme is a widely used testing utility for React that allows developers to manipulate, traverse, and simulate events on React components. While it provides a robust API for testing React components, it focuses more on component testing rather than direct DOM assertions. enzyme is particularly useful for shallow rendering and testing component behavior, making it a good choice if you need to test component logic in addition to DOM interactions.
• react-testing-library is a popular library that encourages testing React components in a way that resembles how users interact with them. It promotes best practices by focusing on the behavior of components rather than their implementation details. While react-testing-library does not provide custom matchers like jest-dom, it works seamlessly with it, allowing you to write tests that are both user-centric and expressive.

To explore how these packages compare, check out the comparison: Comparing chai-dom vs enzyme vs jest-dom vs react-testing-library.