What is Selenium testing with example?

What is Selenium testing with example?

Selenium testing is a software tool that tests a web application based on the user interface. It is an automated testing tool for web applications and is used to verify that the application still works as expected even after some of the codes or other changes have been made.

Selenium automates the entire browser-based testing process, including locating elements and simulating user actions such as clicking, filling in text fields, and validating page content. The main objective of this test is to ensure that the application performs as expected in various browsers and across different operating systems. Selenium cross-browser testing reduces the overall cost of QA automation significantly.