20 Serenity BDD Interview Questions and Answers

Serenity BDD is a tool used by software developers to write and maintain tests for their code. If you’re applying for a position that involves writing code, it’s likely that you’ll be asked questions about Serenity BDD during your interview. Knowing how to answer these questions can help you demonstrate your knowledge and skills to the interviewer. In this article, we’ll review some of the most commonly asked questions about Serenity BDD.

Serenity BDD Interview Questions and Answers

Here are 20 commonly asked Serenity BDD interview questions and answers to prepare you for your interview:

1. What is Serenity?

Serenity is an open source library that aims to make the writing of automated acceptance and regression tests easier. It does this by providing a clear separation of concerns between the test automation code and the test data. This allows for tests to be written in a more maintainable and readable fashion.

2. Can you explain the purpose and usage of a runner class in Serenity?

A runner class is used to define what tests should be run, and in what order. This is useful for organizing and structuring your tests in a way that makes sense for your application. For example, you might want to run all of your smoke tests first, followed by your regression tests. By creating a runner class, you can ensure that your tests are run in the correct order.

3. How can you perform data-driven testing with Serenity BDD?

Serenity BDD provides a number of ways to perform data-driven testing. One way is to use the @Step annotation to annotate methods that take data from an external source, such as a CSV file. Another way is to use the SerenityStepFactory class to dynamically generate steps based on data from an external source.

4. Is it possible to run tests in parallel using Serenity? If yes, then how?

Yes, it is possible to run tests in parallel using Serenity. To do so, you will need to use the SerenityRunner class and specify the number of threads that you want to use.

5. What are some advantages of using Serenity for test automation?

Serenity provides many features that are beneficial for test automation, such as clear and concise reports, easy integration with popular testing frameworks, and the ability to tag tests and run them in parallel. Additionally, Serenity can be used to automate both functional and non-functional tests, making it a versatile tool for test automation.

6. Why do you think Serenity is better than other similar tools like JBehave or Cucumber?

I think that Serenity has a lot of great features that make it stand out from the crowd. For example, I really like the fact that it has built-in support for web testing, and that it also integrates well with a lot of different testing frameworks. Additionally, I think that the reporting features are really top-notch and make it easy to see the results of your tests at a glance.

7. What’s the difference between Serenity and Selenium WebDriver?

Serenity is a library that sits on top of Selenium WebDriver and provides additional functionality, such as the ability to take screenshots, generate reports, and organize tests into features and stories.

8. What are some best practices for writing scalable tests with Serenity?

Some best practices for writing scalable tests with Serenity include:

– Using the Page Object Model to organize your tests
– Using Serenity’s built-in reporting features to generate clear and concise reports
– Using Serenity’s tagging feature to tag tests and run them in parallel
– Using Serenity’s data-driven testing capabilities to test with multiple data sets

9. Can you give me an example of when you would use a custom tag?

A custom tag can be used to provide more information about a step in a Serenity story. For example, if a step is particularly important or complex, you could use a custom tag to highlight this.

10. What is the main goal of your functional tests? Do you prefer more detailed or simpler scenarios that cover all functionality?

The main goal of my functional tests is to ensure that the application is functioning correctly from the user’s perspective. I prefer simpler scenarios that cover all functionality, as this allows me to test the most important aspects of the application without getting bogged down in details.

11. Have you ever worked with a team that used behavior driven development before?

Yes, I have worked with a team that used behavior driven development before. I found it to be a very effective way of developing software. It helped us to focus on the behavior of the software, rather than the implementation details. This made it easier to write tests and to ensure that the software behaved as expected.

12. Can you explain what Object Mother is?

Object Mother is a design pattern that can be used in software development in order to create test objects. The idea is to have a separate class that is responsible for creating objects that will be used in tests. This can be helpful in order to keep tests clean and organized, and to avoid duplication of code.

13. What do you understand by “Scenario Outlines”?

A scenario outline is a template for a scenario that can be reused multiple times with different values. It is a way of representing a scenario in a more concise way, and can be especially useful when there are a lot of different permutations of the same scenario that need to be tested.

14. What are some ways to write multi-line strings in Gherkin?

There are a few ways to write multi-line strings in Gherkin:

– You can use the “|” character to denote a new line, like so:

“`
Feature: My Feature
Scenario: My Scenario
Given I have a multi-line string
| This is the first line
| This is the second line
| This is the third line
Then I should be able to print it out
“`

– You can also use triple-quoted strings, like so:

“`
Feature: My Feature
Scenario: My Scenario
Given I have a multi-line string
“””
This is the first line
This is the second line
This is the third line
“””
Then I should be able to print it out
“`

15. Can you explain what Step Definitions are?

Step Definitions are the glue that binds your Features (written in Gherkin) to your automation code. They are written as regular expressions, which are then matched against the Gherkin steps in your Features. When a match is found, the associated code is executed. This allows you to keep your Features and your automation code loosely coupled, making it easier to change either one without affecting the other.

16. What are some common issues faced while troubleshooting step definitions? How did you fix them?

One common issue is that the step definition is not being found by the cucumber runner. This can be fixed by adding the @Steps annotation to the step definition class. Another common issue is that the step definition is not being invoked. This can be fixed by adding the @Step annotation to the step definition method.

17. What is glue code and why do we need it?

Glue code is code that “glues” together the different parts of a system. In the context of Serenity BDD, it is the code that ties together the step definitions, page objects, and test runner. Glue code is necessary to provide a cohesive structure for your tests and to ensure that they can communicate with each other properly.

18. What is the difference between Scenarios and Features as per BDD standards?

In Serenity BDD, scenarios are used to describe the behavior of the system under test in a concise, human-readable form. Features are used to group together related scenarios.

19. What is the purpose of hooks in Cucumber?

Hooks are blocks of code that can be executed before or after each scenario in a Cucumber feature. They are typically used for setup or cleanup tasks.

20. What is the difference between a scenario outline and a background?

A scenario outline is a template for a scenario that can be used to generate test cases with different values. A background is a set of steps that are run before each scenario in a feature file.