Full-Stack React Projects - Second Edition

Adding a test to the MERN Social application

In order to demonstrate how to get started with adding tests to MERN applications, we will set up Jest and use it to add a client-side test to the MERN Social application. Before defining a test case, followed by writing and running the corresponding test code, first, we will set up for testing by installing the necessary packages, defining the test run script, and creating a folder for the test code, as discussed in the following sections.