1. Introduction to TestNG Listeners

A TestNG listener always extends the marker interface org.testng.ITestNGListener. Using listeners, one can extend TestNG in their dealings with notifications, reports and test behavior. Below are the listeners that TestNG provides:

1. IExecutionListener
2. IAnnotationTransformer
3. ISuiteListener
4. ITestListener
5. IConfigurationListener
6. IMethodInterceptor
7. IInvokedMethodListener
8. IHookable
9. IReporter