Mocha

Mocha is a JavaScript test framework for Node.js programs eaturing browser support, asynchronous testing, test coverage reports, and use of any assertion library. Source

Chai

Chai is a BDD/TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has three interfaces: should , expect and assert, you can choose which one you want to use.

Why did I choose Mocha and Chai?

I had no idea about what test framework was the better for the project so I started to look for information about test frameworks, mainly Mocha and Jest. I saw a couple of tutorials about Mocha and Chai, like this one and I realised that it was really easy to use.

• Reasons why I am using Mocha and Chai
  • Plenty of documentation on Mocha and Chai websites
  • Easy to use with npm
  • Easy to create and run tests
  • Chai it’s really helpful
  • SupportsTDD and BDD
  • One of the most used and supported frameworks
  • Be able to choose between Chai interfaces.

You have to indicate the test route in package.json and to run it use:

 $ npm test

Installation

• To install them as a dependecy:

  $ npm install --save-dev mocha chai
  

If you want to install them globally you can do it with:

$npm install --global mocha chai