Interview Questions and Answers

The @Factory annotation in TestNG is used to create a factory method that can produce instances of the test class. This is useful for dynamic test case generation.

The IRetryAnalyzer interface in TestNG allows you to implement custom logic to decide whether a test method should be retried after a failure. It is used in conjunction with the @Test annotation's 'retryAnalyzer' attribute.

The @Parameters annotation in conjunction with @Factory allows you to pass parameters to the factory method, creating dynamic instances of the test class with different parameter values.

The IReporter interface in TestNG allows you to create custom HTML reports by implementing the generateReport() method. It provides flexibility in generating test reports.

The IAnnotationTransformer interface in TestNG allows you to modify the annotations of test methods or classes dynamically. It is useful for altering the behavior of tests at runtime.