Mocha is one of the most popular testing frameworks for JavaScript; its main goal is to provide an easy way to test asynchronous JavaScript code. Let's install Mocha globally so that we can make it available to any Node.js application that we may develop in the future:
npm install -g mocha
We will also need an assertion library that can be used together with Mocha. The assertion library provides functions for validating actual values, against expected ones, when they are not equal, the assertion library will cause test failure. Should.js assertion library module is easy to use and it will be our choice, so let's install it globally too:
npm install -g should
Now that we have our testing modules installed, we need to specify our testcase file path in the package.json file. Let's modify it by adding a test element pointing...
