What is TestNG?

What is TestNG?

Definition of TestNG as per its documentation is:

TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionalities that make it more powerful and easier to use.

TestNG is an open source automated testing framework; where NG of TestNGmeans Next Generation. TestNG is similar to JUnit (especially JUnit 4), but its not a JUnit extension. Its inspired by JUnit. It is designed to be better than JUnit, especially when testing integrated classes. The creator of TestNG is Cedric Beust.

TestNG eliminates most of the limitations of the older framework and gives the developer the ability to write more flexible and powerful tests. As it heavily borrows from Java Annotations (introduced with JDK 5.0) to define tests, it can also show you how to use this new feature of the Java language in a real production environment.