Automated testing with Mocha and Chai

Mocha and Chai are usually used for JavaScript unit tests. Mocha and Chai run on Node. js as well as in the browser. Mocha is a test framework and Chai is a BDD / TDD assertion library. We will be using them to design our automated test scripts:

1. First, let's install Mocha and Chai with the help of the following command:

[root@ip-172-31-95-213 node-api]# npm install --global mocha
[root@ip-172-31-95-213 node-api]# npm install --save-dev mocha
[root@ip-172-31-95-213 node-api]# npm install --save-dev chai
[root@ip-172-31-95-213 node-api]# npm install --save-dev chai-http

2. Next, we will install the request package to send our test HTTP requests as shown here:

[root@ip-172-31-95-213 node-api]# npm install request --save-dev

3. We have to include the Mocha test command in the scripts object inside the package.json file:

[root@ip-172-31-95-213 node-api]# vi package.json
------------------------------------------
 {
         "name": "node...