Cucumber Interview Questions and Answers for 7 years experience

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100 Cucumber Interview Questions & Answers (7+ years experience)

  1. What is Cucumber and why is it used?

    • Answer: Cucumber is a Behavior-Driven Development (BDD) tool that allows you to write tests in a plain text format (Gherkin) that is easily understandable by both technical and non-technical stakeholders. It's used to bridge the communication gap between developers, testers, and business analysts, ensuring everyone is on the same page regarding the software's functionality.

  2. Explain the Gherkin syntax.

    • Answer: Gherkin uses a structured, keyword-driven approach. Key features include `Feature`, `Scenario`, `Scenario Outline`, `Given`, `When`, `Then`, `And`, `But`. `Feature` describes the functionality, `Scenario` outlines a specific test case, `Scenario Outline` allows for data-driven testing, `Given` sets the preconditions, `When` describes the action, `Then` verifies the outcome, and `And`/`But` are used to add more steps.

  3. What are the different types of Cucumber hooks? Explain with examples.

    • Answer: Cucumber supports Before, After, BeforeStep, and AfterStep hooks. `Before` executes before each scenario, `After` after each scenario, `BeforeStep` before each step, and `AfterStep` after each step. They are used for setup (e.g., database connection, login) and teardown (e.g., closing browser, deleting temporary files) actions. Example: `@Before { driver.get("url") }` (Before hook for setting up the browser).

  4. How do you handle exceptions in Cucumber?

    • Answer: Exceptions can be handled using `try-catch` blocks within the step definition methods. You can also use Cucumber's reporting features to analyze failures. Custom error messages can be included in the `Then` steps or using logging mechanisms to provide insightful debugging information.

  5. Explain the concept of data-driven testing in Cucumber.

    • Answer: Data-driven testing in Cucumber uses `Scenario Outline` and an `Examples` table to run the same scenario with multiple sets of input data. This significantly reduces code duplication and allows for efficient testing with various inputs.

  6. How do you manage your Cucumber test suite across different environments (e.g., Dev, QA, Prod)?

    • Answer: Environment-specific configurations can be managed using external configuration files (e.g., properties files, JSON), environment variables, or dedicated configuration classes. This allows for easy switching between environments by modifying the configuration without altering the step definitions.

  7. What is the difference between a Step Definition and a Feature file?

    • Answer: A Feature file contains the business-readable test scenarios written in Gherkin syntax. Step definitions are the Java/Ruby/Python (or other language) code that implements the actions described in the Feature file. They connect the human-readable steps with the actual automation.

  8. How do you integrate Cucumber with other testing tools?

    • Answer: Cucumber can be integrated with various testing frameworks (e.g., JUnit, TestNG) and build tools (e.g., Maven, Gradle) for reporting, test execution, and CI/CD pipelines. It also integrates well with Selenium, Appium, and REST-assured for UI, mobile, and API testing respectively.

  9. Explain the concept of Page Object Model (POM) in Cucumber.

    • Answer: POM is a design pattern that separates the UI elements and their interactions from the test logic. It improves code maintainability and reusability by creating dedicated classes for each page or component of the application.

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