compare-screenshots

This is a Robot Framework library. Using this library we can do screenshots comparison which is an essential part of visual testing using Robot Framework.

Keyword	Description
compare screenshots	This is the main keyword which actually does a comparison, this keyword takes three arguments path_to_baseline_screenshots, path_to_compare_screenshots and path_to_save_differencefound_screenshots
create report	This keyword creates a text file report of the comparison, like how many screenshots have differences, this keyword takes three arguments path_to_baseline_screenshots, path_to_compare_screenshots, and path_to_save_differencefound_screenshots
move all difference found screenshots	This keyword will move all the difference found screenshots from path_to_compare_screenshots To path_to_baseline_screenshots

How to use this library:

1. Download 'compare-screenshots.py' from this repository.
2. Download 'Requirements.txt' and install all the necessary packages before using this library.
3. Copy 'compare-screenshots.py' file to your Robot Framework project.
4. Then simply use it in your Robot file and use keywords in your test cases or tasks.

(Note: This library tested on windows platform, however, I am sure it will work on the Linux platform as well. If you found any issue then please let me know.)

For more information regarding this library please read my article on LinkedIn:

https://www.linkedin.com/pulse/compare-screenshots-ameya-natu/

Credits:

1. RobotFramework (http://robotframework.org/)
2. OpenCV (https://opencv.org/)

If you have any questions / suggestions / comments on the library, please feel free to reach me on ameyanatu@yahoo.com