Introduction of TestNG Framework and its benefits over Junit Framework

TestNG is a testing framework stirred from NUnit and JUnit but presenting some new functionalities that make it much easier and powerful to use. It is an open source automated testing framework; in which NG means Next Generation. TestNG is much more influential than JUnit but is inspired by JUnit. 

TestNG removes most of the limitations of the older framework and gives the developer the facility to write more powerful and flexible tests with help of easy grouping, annotations, parameterizing and sequencing.

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