API Testing using POSTMAN – Newman Basics

Newman – In simple words – Run postman collection commandline and exports results in different formats(html,json,xml etc) and number of times.


It’s created to keep CI in mind( Continous integration).
Build on node js.
Make sure(Node is installed).
Available for the Linux, windows and Mac

In this tutorial, we are building API test suite in Postman and Running it Command Line(Newman).

 

API Testing – Running Postman collection in the Docker

Most of the time people have the issue with installing software and dependencies. For example, we want to

Schedule the collection of the postman that we have created earlier using ‘POSTMAN’ tool, Rather than installing ‘newman’ command line tool, We will use a Docker image of Linux box with already installed ‘newman’.

I have been asked why I am getting the error, ‘newman’ not working etc, my os/system is having an issue while installing or running. This post definitely help you guys.


Understanding docker

Docker allows you to package an application with all of its dependencies into a standardized unit for software development.

In simple sentence consider it as a virtual machine which has ubuntu running with ‘newman‘ installed already.

Installing docker.

Navigate to the https://www.docker.com/products/overview#/install_the_platform. And Install it.
When you run it this is how it look like in Mac.

 

 

 

 

 

Pulling the docker images(Make sure you have the Docker install and started it)

  • docker pull postman/newman_ubuntu1404

Running postman collection using docker Command-line.

  •  docker run t postman/newman_ubuntu1404 url=“https://www.getpostman.com/collections/8a0c9bc08f062d12dcda”

Getting results.