What are the benefits of Automation Testing?

In addition to Pradeep Answers - I would like to add why we automate?

 

For any application, there are cases which are common rather has to be executed everytime there is new application build so instead of running so cases manually everytime - we recommend to automate such cases so whenever there is new build you can just run your automation which will verify your build quality quickly with less effort and less chances of human mistake since test automation assumed to peer reviewed and stable.

Automation testing is used to test which are repeatative in nature  and don't need manual effeort to test the application .

 

Automation testing gives benefit of