@coffeestain/margara

Margara

Visual Validation CLI Tool for Manual Testers

Description

Margara helps engineers quickly capture and validate the visual state of a webapp by comparing screenshots against different environments and browsers.

Pre-requisites

Margara uses playwright under the hood which means that you will require several tools to make it work:

• NodeJs v12.19.0 or up
• In order to capture screenshots for specific browsers you have to have them installed:
  • Chrome chromium
  • Firefox firefox
  • Safari webkit

Getting Started

Installation

npm install -g @coffeestain/margara

Usage

Take Screenshot

You can take screenshots of a single page in a browser

margara shot -url https://www.google.com

Or you could specify the browsers to check:

margara shot -browsers chromium firefox webkit -browsers chromium firefox webkit

Compare Website

You can compare the state of a website against a baseline and a target .png.

If you don't have a baseline it is recorded on the first execution.

margara shot -t https://www.google.com

If you have a baseline it uses it to compare with the screenshot.

margara shot -t https://www.google.com

Or you can specify the baseline url and target url and compare them on a single execution.

margara shot -t https://www.google.com -B https://www.google.com?q=hola

You can always specify which browsers to run this

margara compare -t https://www.google.com -B https://www.google.com\?q\=hola -b firefox

Notes

Make sure you have installed the browsers in which you want to compare.

Firefox: firefox Chrome: chromium Safari: webkit