TestNG Interview Questions For Freshers
  1. How TestNG is different from JUnit?
  2. What is the purpose of TestNG annotations?
  3. How to define a TestNG test?
  4. What is a TestNG suite?
  5. What is the use of the @Test annotation?
  6. What is a TestNG parameter?
  7. How to group TestNG tests?
  8. What is TestNG dependency and how to define it?
  9. How to run a single test method using TestNG?
  10. How to execute TestNG tests from the command line?
  11. What is a TestNG report and how to generate it?
  12. What is a TestNG listener?
  13. What is TestNG data provider and how to use it?
  14. What is the use of the @BeforeSuite and @AfterSuite annotations?
  15. What is the difference between @Test and @BeforeMethod annotations in TestNG?
  16. How to define and use TestNG groups?
  17. How to use TestNG's built-in assertions to verify test results?
  18. What is the use of the TestNG dependsOnMethods attribute?
  19. How to use TestNG's expectedExceptions attribute to handle exceptions in tests?
  20. What is the use of TestNG's alwaysRun attribute?
  21. How to parameterize TestNG tests using data providers?
  22. What is the difference between a TestNG test and a TestNG suite?
  23. How to use TestNG's @DataProvider annotation to pass test data?
TestNG Interview Questions For Experienced
  1. How to use TestNG's parallel attribute to run tests in parallel?
  2. How to use TestNG's threadPoolSize attribute to control the number of threads used for parallel execution?
  3. How to use TestNG's listeners to perform custom actions before or after tests?
  4. How to use TestNG's annotation transformers to change test method behavior dynamically?
  5. How to use TestNG's Method Selector to choose which methods to run based on regular expressions?
  6. What is the difference between a TestNG factory and a data provider?
  7. How to use TestNG's Listeners with Selenium to capture screenshots of failed tests?
  8. What are some common gotchas when using TestNG with Spring, and how can they be avoided?
  9. What are some best practices for using TestNG with parallel execution, and how can you avoid race conditions and synchronization issues?
  10. What are some gotchas to be aware of when using TestNG with WebDriver and Selenium, and how can they be addressed?
  11. How can you ensure proper cleanup and teardown of resources, such as database connections, when using TestNG?
  12. What are some best practices for handling configuration and environment-specific settings in TestNG?
  13. What are some gotchas to be aware of when using TestNG with mock objects and how can they be addressed?
  14. How can you use TestNG with Jenkins to create a continuous integration pipeline, and what are some best practices for doing so?
  15. What are some gotchas to be aware of when using TestNG with REST APIs, and how can they be addressed?
  16. How can you use TestNG to test asynchronous code, and what are some best practices for doing so?
  17. How can you use TestNG with Docker to create a portable and reproducible testing environment, and what are some best practices for doing so?