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Table of contents
1.
Introduction
2.
Cypress Interview Questions for Freshers
2.1.
1) What is Cypress?
2.2.
2) Which language is Cypress based on?
2.3.
3) What is Cypress Architecture?
2.4.
4) Which browsers are supported by Cypress?
2.5.
5) What is a Cypress Test Runner?
2.6.
6) What is a Cypress Dashboard?
2.7.
7) What distinguishes Cypress architecture from that of Selenium?
2.8.
8) Explain the differences between Cypress and Selenium?
2.9.
9) What are the perks of Cypress?
2.10.
10) What are the drawbacks of Cypress?
2.11.
11) Does Cypress use mocha?
2.12.
12) What is the Testing Framework Cypress comes with?
2.13.
13) How do you set up Cypress?
2.14.
14) What is the Cy route?
2.15.
15) What exactly is Cypress CLI?
3.
Cypress Interview Questions for Experienced
3.1.
16) How to execute a cypress hello world test script?
3.2.
17) In Cypress, how can you create suites?
3.3.
18) Tell us about a few Cypress commands
3.4.
19) Which commands are used for interacting with DOM elements?
3.5.
20) What selectors will Cypress support?
3.6.
21) In Cypress, what is an environment variable?
3.7.
22) What are Preserve cookies in Cypress?
3.8.
23) How can you get the first and last child of the selected element?
3.9.
24) What exactly are custom commands in Cypress?
3.10.
25) In Cypress, how do you type Keypress?
3.11.
26) How to get the title of the page?
3.12.
27) How can you get the value from the Cypress Configuration file?
3.13.
28) How can you make advantage of the sleep in Cypress?
3.14.
29) In Cypress, how do you get to the shadow DOM?
3.15.
30) What exactly is Shadow DOM?
4.
Frequently Asked Questions
4.1.
How do you explain a Cypress project in an interview?
4.2.
What is Cypress vs Selenium?
4.3.
What is the use of Cypress in QA?
5.
Conclusion
Last Updated: May 24, 2024
Medium

Cypress Interview Questions

Author Lekhika
2 upvotes
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Speaker
Ashwin Goyal
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18 Jun, 2024 @ 01:30 PM

Introduction

Cypress is a JavaScript-focused front-end testing tool designed for the modern web. It aims to ease the challenges developers and QA engineers encounter in testing applications. This blog is solely dedicated to Cypess Interview Questions, this blog contains some important Cypress Interview Questions that may be helpful during interviews.

Cypess Interview Questions

Let us discuss the most commonly asked Cypress Interview Questions and answers- updated (2024) one by one for the following:

  • Freshers
  • Experienced

Cypress Interview Questions for Freshers

1) What is Cypress?

Cypress is a modern digital front-end testing tool that is fully based on JavaScript. Its purpose is to make it easier for developers and QA engineers to test an application. Cypress is a more developer-friendly tool that works directly in the browser and employs a novel DOM modification method.

2) Which language is Cypress based on?

It's built-in Node.js and distributed as an npm module. Because it is built on Node.js, it writes tests in JavaScript. However, 90 percent of the code may be accomplished using Cypress's built-in commands that are straightforward to grasp. This question is one of the important questions which can come in Cypress Interview Questions.

3) What is Cypress Architecture?

Most testing tools (like Selenium) operate outside of the browser and run network operations. On the other hand, the Cypress engine is completely contained within the browser.

It enables Cypress to monitor browser behavior and influence it in real-time by modifying the DOM and altering network requests and answers on the fly. This question is also one of the important questions which can come in Cypress Interview Questions.

4) Which browsers are supported by Cypress?

Following browsers are supported by Cypress.

  • Chrome
  • Chromium
  • Canary
  • Microsoft Edge (Chromium-based)
  • Electron(Default)
  • Mozilla Firefox (beta support)

5) What is a Cypress Test Runner?

Cypress Test Runner runs tests in an interactive runner, which allows you to observe commands executing while also seeing the application being tested. The test runner's essential subcomponents on which we should focus while executing our test cases are Command Log, Url Preview, App Preview, Test Status, and Viewport Sizing.

6) What is a Cypress Dashboard?

The Cypress Dashboard is a feature that allows you to view captured tests when executing Cypress tests via your CI provider. The Dashboard displays what occurred during the execution of your tests.

7) What distinguishes Cypress architecture from that of Selenium?

Selenium uses WebDriver to execute instructions, which means it can execute commands from anywhere on the network. However, Cypress functions directly within the browser. As a result, the browser performs the commands that we execute in a script.

8) Explain the differences between Cypress and Selenium?

Selenium

Cypress

Supports all major programming languages, including C#, Java, Python, JavaScript, and Ruby.

Cypress only supports JavaScript and Typescript.

Web drivers are used to performing Selenium commands.

Commands from Cypress are Directly executed in the browser.

Selenium operates with all major browsers, including Microsoft Edge, Firefox, Internet Explorer, and Chrome.

Cypress only supports Edge, Firefox, and Chrome.

Using Selenium Driver configuration and language bidding should be handled by all of us.

With Cypress, there is a ready-made framework that only needs to be installed.

Selenium Appium may be used to examine native mobile applications.

Cypress does not provide native mobile app testing.

9) What are the perks of Cypress?

Cypress has several advantages; a couple of them are as follows:

  • We may record the entire set of tests using the Video Capture tool provided by Cypress.
     
  • Cypress is much quicker than Selenium-based tools since it directly performs instructions on the browser.
     
  • Cypress Debuggability gives us access to developer tools in the browser, allowing us to analyze directly in the browser.
     
  • Cypress is a contemporary NodeJS framework that works with Single Page Applications and internal Ajax calls.
     
  • Cypress always waits for commands, assertions, and animations to complete, so we seldom have to add extra sleep to our tests.
     
  • Cypress conducts tests and commands directly on the browser, making it less unreliable.
     
  • Cypress has Time Travel features, so it takes screenshots of each test, and after execution, we can see exactly what happened in each step. We don't need to configure this because it comes standard with Cypress.

10) What are the drawbacks of Cypress?

Cypress has several disadvantages; a couple of them are as follows:

  • Cypress does not support all browsers, including Safari and Internet Explorer.
     
  • Multiple tabs are not supported by Cypress.
     
  • Cypress tests cannot be run on different browsers at the very same time.
     
  • The iframe is not supported by Cypress.
     
  • Cypress only supports JavaScript and Typescript.

11) Does Cypress use mocha?

Cypress has expanded mocha and used its bdd syntax for unit and integration testing.

12) What is the Testing Framework Cypress comes with?

Cypress includes the assertion libraries Mocha and Chai; however, we cannot utilize Junit or TestNG in Cypress. Such small questions can also come in handy in Cypress Interview Questions.

13) How do you set up Cypress?

If we wish to set up Cypress, we must first install Node. Once Node is installed, we can install Cypress with the command:

npm install Cypress

14) What is the Cy route?

We utilize cy. route() to control the behavior of network requests.

In Cypress 6.0.0, the functions cy.server() and cy.route() were deprecated. In a future release, support for cy.server() and cy.route() will be relocated to a plugin.

15) What exactly is Cypress CLI?

Cypress CLI is a unique characteristic in Cypress that allows us to execute our Cypress tests from the command line. This functionality comes in handy when running our Cypress tests in pipelines. It gives several choices, and flags determine the behavior of the Cypress test.

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Cypress Interview Questions for Experienced

16) How to execute a cypress hello world test script?

After installing Cypress, a folder named integration will be created in which you may construct your first spec file in typescript or JavaScript.

Your spec file should include a describe() and/or it() block. Inside this block, use the cypress command to run the test.

17) In Cypress, how can you create suites?

We may construct a describe() block. The described block serves as a suite, and each test may be built as a separate () block within it.

Describe() works similar to a suite in this scenario.

18) Tell us about a few Cypress commands

  • cy.visit(): This function is used to browse a certain website.
     
  • cy.log(): Cypress console logs are shown during execution using cy.log.
     
  • cy.get(): In Cypress, cy. get is used to retrieve DOM elements. Once we have DOM elements, we can execute actions on them, such as clicking, typing, and so on.
     
  • cy.URL(): cy.URL() returns the current URL of the currently active page.

19) Which commands are used for interacting with DOM elements?

  • .dblclick(): is used to perform a double click on an element.
     
  • .type(): This function is used to type on elements or text boxes.
     
  • .check(): is used to check checkboxes or radio buttons (s).
     
  • .select(): Within a choose>, choose an option>.
     
  • .click(): is used to perform a click on the element.
     
  • .rightclick(): is used to perform a right-click on an element.
     
  • .clear(): is used to clear the fields or text boxes.
     
  • .uncheck(): is used to uncheck checkboxes or radio buttons (s).

20) What selectors will Cypress support?

Cypress, by default, only supports CSS selectors. However, we can use a third-party plugin to support Xpath selectors. 

21) In Cypress, what is an environment variable?

The Environment Variables are variables whose values are established at the operating system level and outside of the context of the application or framework.

22) What are Preserve cookies in Cypress?

Cypress clears the cookies after each test by default. To avoid removing cookies, utilize the preserve cookies feature in Cypress.

23) How can you get the first and last child of the selected element?

.first() and.last() are used to obtain the element's first and last child.

24) What exactly are custom commands in Cypress?

Cypress comes with a default set of commands such as cy.visit, cy.relaod, and so on. We can also write our own custom commands in Cypress.

For example, I may write instructions like cy.login() that will prompt the user for their username and password before clicking the submit button.

We may implement the custom command using the code below.

Cypress.Commands.add("login", (username, password) => {
  //adding a new command named login
  cy.get("#username").type(username);
  cy.get("#password").type(password);
  cy.get("#login").click();
});

25) In Cypress, how do you type Keypress?

Keypressing may be done in Cypress using the.type() command. If we need to utilize keys like CTRL, SHIFT, ALT, and so on, we must define them in brackets as seen below.

cy.get(‘login’).type('{shift}{alt}hello'));

26) How to get the title of the page?

cy.title() : cy.title() can be used to get the title of the currently active window

Example:-

cy.title().should('eq','Instagram Login or Signup')

27) How can you get the value from the Cypress Configuration file?

Using Cypress.config(), we can read the cypress.config values.

28) How can you make advantage of the sleep in Cypress?

cy.wait(): This function is used to wait for a specified length of time.

Example:-

cy.wait(1000)

29) In Cypress, how do you get to the shadow DOM?

In Cypress, we may access the aforesaid shadow dom using the code below.

cy.get('.shadow-host').shadow().find('.my-button').click()

30) What exactly is Shadow DOM?

Shadow DOM allows concealed DOM trees to be added to ordinary DOM tree components — this shadow DOM tree begins with a shadow root.

Frequently Asked Questions

How do you explain a Cypress project in an interview?

Cypress is a popular testing framework for web applications. It offers a powerful and intuitive testing experience, enabling developers to write and execute tests quickly within the browser. Cypress's real-time reloading and debugging capabilities make it efficient for ensuring high-quality web application performance.

What is Cypress vs Selenium?

Cypress is a modern, JavaScript-based end-to-end testing framework, focusing on simplicity and speed, while Selenium is a versatile, older tool supporting multiple programming languages and browsers.

What is the use of Cypress in QA?

Cypress is a JavaScript end-to-end testing framework used in Quality Assurance (QA) for automated testing of web applications.

Conclusion

In this article, we have extensively discussed the Cypress Interview Questions and answer series covering the various-level Cypress Interview questions.

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