How to Use the New Node.js Test Runner

With the release of Node.js version 20, the experimental test runner of Node.js 18 has achieved stable status. Let's see how we can use this new test runner to test our code. The test runner supports test and describe/it style tests and also includes mocking, multiple test reporters and code coverage, although coverage is still experimental. Let's explore one of the most common use cases, testing a service layer and mocking the fetch function. This guide will give you an A-Z hands-on example. First test if we have the correct Node.js version by running the following command in the terminal. We should get version 20 returned. If you have a different version running, please install version 20 using nvm. <a href="https://medium.com/bitsrc/how-to-use-the-new-node-js-test-runner-3a347289732">Read More</a>