What is difference between TestNG and Selenium?

What is difference between TestNG and Selenium?

Selenium is Test Automation tool for WebApplication helps to interact with Brower thru element indentifier. TestNG is a Java based UnitTest framwork , When we use testNG to execute Selenium Test cases, We can Genete Reports , Organise Test cases, and Execute Test cases in parallel. https://www.gcreddy.com/2021/08/testng-framework-for-selenium.html