01
What is the Page Object Model?
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A design pattern where each page is a class holding its locators and actions, so tests stay readable and a locator change is fixed in one place.
TestNG & Frameworks Interview Questions for Automation Testing
7 TestNG & Frameworks questions with answers for automation testing roles. Tick what you have solved to track your progress.
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02
How do you run tests in parallel?
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Use TestNG parallel="methods | classes | tests" with thread-count, keep WebDriver in a ThreadLocal, and use Selenium Grid or a cloud grid for multiple browsers.
03
What is the execution order of TestNG annotations?
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@BeforeSuite → @BeforeTest → @BeforeClass → @BeforeMethod → @Test → @AfterMethod → @AfterClass → @AfterTest → @AfterSuite.
04
How would you design an automation framework from scratch?
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Maven project → POM with a BasePage → driver factory with ThreadLocal → config files → data-driven utilities (Excel/JSON) → TestNG or Cucumber runner → logging → Extent reports with screenshots on failure → Jenkins pipeline.
05
How do you take a screenshot on failure in TestNG?
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Implement ITestListener.onTestFailure():
File src = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
then copy it into the reports folder.
06
What is a DataProvider in TestNG?
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@DataProvider returns Object[][]; a @Test(dataProvider = "name") method runs once per row — the basis of data-driven tests, often reading Excel or JSON.
07
How do you decide what to automate?
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Automate stable, repetitive, high-risk and data-heavy flows (smoke, regression). Skip one-time tests, frequently changing UI and checks needing human judgement. Compare run frequency × manual time with build and maintenance cost.