TestNG Listeners In Selenium WebDriver With Examples

The article explores TestNG Listeners in Selenium WebDriver, which are Java interfaces that allow users to modify the behavior of TestNG, a popular testing framework. It provides an overview of frequently used listeners such as ITestListener, which can alter test logging and reporting, and demonstrates how to implement these at both class and suite levels. Examples showcase various listeners, including IAnnotationTransformer, IInvokedMethodListener, and ISuiteListener, each serving distinct functions like transforming test annotations or tracking method invocations. The piece also highlights less commonly used listeners like IConfigurationListener and IExecutionListener, which track configuration success and execution timelines, respectively. By detailing how listeners can be applied to customize test execution and reporting, the article serves as a comprehensive guide for testers seeking to leverage TestNG's full potential in Selenium automation.