Using Groups Functionality in TestNG

The video tutorial explains the use of annotations in TestNG, focusing on 'before class' and 'after class' annotations. It discusses the execution order of test methods, which is based on alphabetical order, and how to exclude tests using TestNG XML. The tutorial also covers a client requirement to run specific test cases using groups, providing a detailed guide on implementing this feature in TestNG.

What is the role of the 'after class' annotation in TestNG?

Explain the concept of data providers in TestNG.

How can you run specific test cases after every build in a TestNG framework?

What are the potential errors you might encounter when running TestNG tests?