Testing Vue Component with Mocha and Chai

Previously, We have created a Toggle Botton component with Vue. You can download the complete source codes from the GitHub repository. Today, we are going to implement Unit testing for our Vue component. And we are going to use the Mocha and Chai to perform the testing. Mocha is a simple and feature-rich test framework for javascript. Before jumping directly to the codes, Make sure to add the required packages to the unit testing environment.