How can you create a data-driven framework using TestNG?

• A. By using @Test annotation
• B. By using @DataProvider annotation
• C. By using @BeforeMethod annotation
• D. By using @AfterSuite annotation

Answer: (B)

Creating a data-driven framework in TestNG relies on the use of the @DataProvider annotation, which is specifically designed for this purpose. The @DataProvider allows you to define a method that supplies data in the form of an array of objects. This data can then be injected into the tests, enabling a single test method to run multiple times with different input values.

The main advantage of using @DataProvider is that it allows for easy parameterization of tests. This means that you can run the same test logic with various inputs, enhancing the coverage and robustness of your testing without duplicating the test code. It promotes better maintainability and efficiency, as you can easily add or modify test data without changing the core test logic.

On the other hand, while the other annotations mentioned have their own significance within the TestNG framework, they do not directly facilitate a data-driven testing approach. The @Test annotation is crucial for defining test methods, but it doesn't handle data sources. The @BeforeMethod annotation is used for setup tasks that should occur before each test method runs, while the @AfterSuite annotation pertains to actions that occur after all tests in the suite have completed. These annotations play supportive roles but do not provide the functionality required for data-driven testing directly