Top Cucumber Interview Questions And Answers

Top Cucumber Interview Questions And Answers

Top Cucumber Testing Interview Questions & Answers

Question: What Is Cucumber?

Cucumber is a Behavior Driven Development (BDD) tool. Cucumber is a tool that executes plain-text functional descriptions as automated tests. The language that Cucumber understands is called Gherkin.

In BDD, users (business analysts, product owners) first write scenarios or acceptance tests that describes the behavior of the system from the customer’s perspective, for review and sign-off by the product owners before developers write their codes.

Question: What are the advantages of Cucumber?

 Advantages of Cucumber are:

·         We can involve business stakeholders who cannot code
·         End-user experience is a priority
·         Style of writing tests allow for easier reuse of code in the tests
·         Allows quick and easy setup and execution

Question: When is Cucumber used in real time?

Cucumber tool is generally used in real time to write acceptance tests for an application. It is generally used by non-technical people such as Business Analysts, Functional Testers etc.

Question: What language is used by Cucumber?

Gherkin is the language that is used by the Cucumber tool. It is a simple English representation of the application behavior. Gherkin language uses several keywords to describe the behavior of application such as Feature, Scenario, Scenario Outline, Given, When, Then etc.

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Question: What is BDD?

BDD or Behavior-driven development is a process of developing software based on TDD (Test Driven Development) which focuses on the behavioral specification of software testing units.

Question: What are the two files which you need to run a Cucumber test scenario?

If you want to execute a Cucumber test, then make sure it has the following two files.
1- A feature file.
2- A step definition file.

Question: What is meant by a feature file?

A feature file must provide a high-level description of an Application Under Test (AUT). The first line of the feature file must start with the keyword ‘Feature’ following the description of the application under test.

A feature file may include multiple scenarios within the same file. A feature file has the extension .feature.

Question: What Does Feature File Consist Of ?

Feature file in cucumber consist of parameters or conditions required for executing code, they are:

 ·         Feature
 ·         Scenario
 ·         Scenario Outline
 ·         Given
 ·         When
 ·         Then

Question: What are the various keywords that are used in Cucumber for writing a scenario?

Mentioned below are the keywords that are used for writing a scenario:
  • Given
  • When
  • Then
  • And
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Question: Explain the purpose of keywords that are used for writing a scenario in Cucumber.

“Given” keyword is used to specify a precondition for the scenario. When a keyword is used to specify an operation to be performed. The keyword is used to specify the expected result of a performed action. “And” keyword is used to join one or more statements together into a single statement.

Question: Explain the term step definition in Cucumber

A step definition is the actual code implementation of the feature mentioned in the feature file.

Question: What Is Profile In Cucumber?

We can create Cucumber profiles to run specific features and step definitions.

We can use following command to execute a cucumber profile
cucumber features -p <profile_name>

Ex: cucumber features -p regression

Question: What Are Before, After, Beforestep And Afterstep Hooks?

Before: execute before the feature file execution

After: executes after the feature file execution

BeforeStep: executes before the each step execution

AfterStep: executes after the each step execution

Question: What are cucumber tags? And why do we use them?

Cucumber tags help in filtering the scenarios. We can tag the scenarios and then run them based on tags.
1- We can add tags to scenarios with the <@> symbol.
2- We can use the following command to run a cucumber tagged scenario.

cucumber features -t @<tag_name>

#Example: cucumber features -t @test

Question: What is the right way to execute a specific scenario from the feature file?

We can select the target scenario from a feature file by providing its line number.
cucumber features/test.feature:10 --format html > testfeature.html

Question: What Is Cucumber Dry Run?

Cucumber dry run is used to compile cucumber feature files and stepDefinitions. If there is any compilations errors it will show when we use dry run

Ex: Cucumber features –dry-run

Question: What are the steps to generate a report in Cucumber?

We run the following command to produce HTML reports.
cucumber <featurename>.feature --format html --out report.html --format pretty

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Question: What is the purpose of Scenario Outline in Cucumber?

Scenario outline is a way of parameterization of scenarios. This is ideally used when the same scenario needs to be executed for multiple sets of data, however, the test steps remain the same. Scenario Outline must be followed by the keyword ‘Examples’, which specify the set of values for each parameter.

Question: What is the use of Background keyword in Cucumber?

Background keyword is used to group multiple given statements into a single group. This is generally used when the same set of given statements are repeated in each scenario of the feature file.

Question: What is the purpose of Examples keyword in Cucumber?

Examples keyword is used to specify values for each parameter used in the scenario. Scenario Outline keyword must always be followed by the keyword Examples.

Question: What is the purpose of Cucumber Options tag?

Cucumber Options tag is used to provide a link between the feature files and step definition files. Each step of the feature file is mapped to a corresponding method on the step definition file.

Below is the syntax of Cucumber Options tag:

Question: What is the meaning of TestRunner class in Cucumber?

TestRunner class is used to provide the link between feature file and step definition file. Below is the sample representation of how TestRunner class will look like. A TestRunner class is generally an empty class with no class definition.

Question: What is the use of glue property under cucumber Options tag?

Glue property is used to let Cucumber framework identify the location of step definition files.

Question: What Are The Difference Between Jbehave And Cucumber?

  • Although Cucumber and Jbehave are meant for the same purpose, acceptance tests are completely different frameworks
  • Jbehave is Java based and Cucumber is Ruby based
  • Jbehave are based on stories while Cucumber is based on features.
Question: What is the name of the plugin that is used to integrate Eclipse with Cucumber?

Natural Plugin is the plugin that is used to integrate Eclipse with Cucumber.

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My Name is Ankur Jain and I am currently working as Automation Test Architect.I am ISTQB Certified Test Manager,Certified UI Path RPA Developer as well as Certified Scrum Master with total 12 years of working experience with lot of big banking clients around the globe.I love to Design Automation Testing Frameworks with Selenium,Appium,Protractor,Cucumber,Rest-Assured, Katalon Studio and currently exploring lot in Dev-OPS as well. I am currently staying in Mumbai, Maharashtra. Please Connect with me through Contact Us page of this website.

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June 17, 2020 at 9:19 PM

Thanks Ankur. Very helpful.

July 30, 2020 at 11:00 PM

Nice collection
Do check below list of BDD Cucumber interview questions:

August 13, 2020 at 11:41 AM

Just give examples of your explanation that best for everyone