Best Unit Testing Tools for Angular and ReactJS

1. 5 Best Unit Testing Tools for Angular and ReactJS

2. 1. Karma Karma is one of the most effective JavaScript command-line tools that can be used to spawn web servers. It can not only be configured to run against multiple browsers but can also be used to load your application’s source code and execute a suite of tests on the command line. The power of Karma lies in its unmatched capability to eliminate browser implementation glitches from the code.

3. 2. Jest • With their philosophy of providing an integrated ‘zero-configuration’ experience, Jest is largely used for parallelizing test runs across the board to maximize performance. Jest has the innate ability to generate more stable and healthy code bases and is widely used for all JavaScript code testing purposes including React applications.

4. 3. Mocha Advocates simplicity and ease of use in a Node.js environment. In fact, Enzyme – a JavaScript Testing utility used with Mocha has proved to one of the best combinations for testing web applications written in ReactJS. You can use the power of Enzyme to assert, manipulate, and traverse the output of your React components.

5. 4. Selenium Webdriver • Selenium Webdriver is a high-end, top-of-the-line testing automation tools for creating end-to-end testing scenarios. The power of Selenium Webdriver lies in its ability to control Web browsers through programs and diversity in terms of its functionality on a range of browsers and operating systems.

6. 5. Jasmine • Largely a behavior-driven development framework for testing JavaScript code, Jasmine works synchronously with Karma. Being the ‘go-to testing framework within the Angular documentation, Jasmine is relatively dependency-free and does not require a Document Object Model (DOM). Jasmine is loaded with a feature called ‘spy’ that allows spying on a function, and attributes, parameters, and arguments can be tracked effectively.