I would like to implement visual UI comparison but I don't have the idea on how to implement it. Anyone please give some idea on how to implement visual UI comparison. I know that need to compare the actual and expected screenshot but I don't know when to execute it (Whether it is different test cases or integrate it together to functional testing).
PS: I got an idea - Is it execute all functional testing first then execute visual UI testing?
Please provide some ideas. A billion thanks for your help.
You can integrate Applitools with selenium. It is a nice tool with AI algorithms to compare images. Hence will have less or no false positive scenarios. It provides nice documentation as well- Firstly you need to have an account created which will give you a key. Also download the utility. Please refer the below link (this is java integration, similarly you can find other technology integrations as well)-
https://applitools.com/tutorials/selenium-java.html#quick-start-%F0%9F%9A%80