Cucumber Interview Questions and Answers

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Ques 1. What is Cucumber?

Cucumber is a tool that supports behavior-driven development (BDD) by allowing tests to be written in a natural language style.

Example:

Feature: Login
  Scenario: Successful login
    Given the user is on the login page
    When the user enters valid credentials
    Then the user should be logged in

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Ques 2. Explain the difference between Cucumber Scenario Outline and Examples keywords.

Scenario Outline is used to run the same scenario with different sets of data, and Examples provide the actual values for the placeholders in Scenario Outline.

Example:

Scenario Outline: Multiply numbers
    Given the number 
    And the number 
    When I multiply  and 
    Then the result is 
    Examples:
      | a | b | result |
      | 2 | 3 | 6 |
      | 4 | 5 | 20 |

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Ques 3. What is the purpose of the Background keyword in Cucumber?
Background is used to define a set of steps that are common to all scenarios in a feature, helping to reduce duplication of steps.
Example:
Feature: Shopping Cart
  Background:
    Given a user is logged in
  Scenario: Add item to cart
    When the user adds an item to the cart
    Then the cart should display the item

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Ques 4. How do you parameterize steps in Cucumber?
Steps can be parameterized using angle brackets in the step definition, and values are passed through Examples in the Scenario Outline.
Example:
Scenario Outline: Search with different keywords
    Given the user is on the search page
    When the user searches for
    Then results should include
    Examples:
      | keyword   | result           |
      | cucumber  | relevant results |
      | testing   | accurate results |

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Ques 5. What is the purpose of Tags in Cucumber?
Tags are used to categorize and filter scenarios, allowing selective execution of specific groups of scenarios.
Example:
@smoke
Feature: User Authentication
  Scenario: Successful login
    Given the user is on the login page
    When the user enters valid credentials
    Then the user should be logged in

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What is the purpose of the 'Outline' keyword in Cucumber?