Cypress has quickly become one of the most preferred tools in modern web automation due to its developer-friendly architecture and fast, reliable test execution. Teams building front-end applications, especially those using JavaScript frameworks, rely heavily on Cypress to validate UI behavior and ensure end-to-end quality. As demand for Cypress expertise grows, companies are focusing their hiring efforts specifically on candidates who understand real-world testing scenarios using this framework.
To help you prepare, this guide brings you the most commonly asked Cypress interview questions along with clear and practical answers. Whether you're a fresher or applying for a senior role, these Cypress interview questions and answers will support your preparation across fundamentals, Cypress testing workflows, debugging, CI/CD integration, and more. We’ve also included Cypress interview questions for experienced professionals so you can strengthen your advanced concepts, performance optimizations, and best practices.
Let’s dive into the top Cypress interview questions that will help you succeed in your next automation testing interview.
70+ Cypress Interview Questions and Answers for 2025
1. What is Cypress? Why is Cypress used in Automation Testing?
Cypress is a modern JavaScript-based end-to-end testing framework used for testing web applications. It is built on Node.js and executes directly inside the browser, allowing it to control DOM elements efficiently. Unlike Selenium, Cypress does not rely on WebDriver architecture. Because it runs in the same run-loop as the application, it offers faster execution and less flakiness.
Cypress is mainly used because it provides:
- Automatic waiting for elements before actions
- Real-time test execution with time-travel snapshots
- Built-in debugging support through Developer Tools
- Network request stubbing and API testing in the same framework
It supports writing UI, integration, and API tests, making it a complete automation solution for modern web applications.
2. How can we achieve reusability in Cypress automation framework?
Reusability in Cypress can be implemented by organizing tests in a modular and maintainable structure. Cypress supports various mechanisms such as:
- Custom Commands: Common reusable functions can be added inside cypress/support/commands.js so they can be accessed across multiple test files.
- Page Object Model (POM): Create page classes to separate UI locators and reusable actions from test logic, which reduces duplication.
- Fixtures for Test Data: Store input datasets like user credentials in JSON files under cypress/fixtures/ to reuse the same data in multiple test cases.
- Utility functions: Functions such as date generation, API data transformation etc., can be placed in utility helpers.
This ensures reduced redundancy, easy maintenance, and better scalability of the automation test suite.
3. How can we run test cases in a specific order in Cypress?
Cypress recommends writing independent tests that do not depend on execution order. However, in some real project scenarios, ordering test execution may be required.
The following methods can be used:
- Cypress runs test files alphabetically by default. Naming files as 01_login.spec.js, 02_dashboard.spec.js ensures ordered execution.
- Using CLI commands and specifying individual spec file sequence manually.
- Using before() and beforeEach() hooks to ensure prerequisite flows like login happen before dependent scenarios.
4. How do you handle iframes in Cypress?
Working with iframes in Cypress can be tricky because Cypress doesn’t provide direct iframe handling commands like Selenium. To interact with an element inside an iframe, you first need to access the iframe’s contentDocument and contentWindow, then wrap the body to run Cypress commands inside it.
Example:
cy.get('iframe')
.its('0.contentDocument.body')
.should('be.visible')
.then(cy.wrap)
.find('#username')
.type('james');
This approach ensures Cypress can properly interact with DOM elements nested inside the iframe.
5. How do you handle alerts and pop-ups in Cypress?
Cypress automatically handles native browser alerts and pop-ups such as alert(), confirm(), and prompt() without requiring manual switching. If you want to verify the alert text or override the default action, you can listen to browser events using cy.on(). This allows you to validate alert messages and define custom behavior during test execution.
cy.on('window:alert', (message) => {
expect(message).to.equal('Action Successful');
});
6. What are Cypress Fixtures, and how are they used in automation?
Fixtures in Cypress are used to store external data such as JSON files, text files, or test objects that can be reused across multiple test cases. They help in separating test data from test scripts, which improves reusability and readability. The fixture files are placed inside the cypress/fixtures folder and can be loaded using the cy.fixture() command.
cy.fixture('userdata.json').then((data) => {
cy.get('#email').type(data.email);
});
7. What are Custom Commands in Cypress, and why are they important?
Custom Commands allow testers to store repeated actions or logic in a centralized place so that code duplication is avoided. These commands are created in the cypress/support/commands.js file and can be used throughout the project like built-in Cypress commands. They improve test maintainability, readability, and efficiency.
Cypress.Commands.add('login', (email, password) => {
cy.get('#email').type(email);
cy.get('#password').type(password);
cy.get('#login').click();
});
8. How do you wait for API responses or network calls in Cypress?
Cypress provides the cy.intercept() command to spy on or stub network requests. You can assign an alias to the request and then use cy.wait() to pause the test execution until a specific response is received. This ensures that UI validation only happens after backend operations are completed successfully.
cy.intercept('GET', '/users').as('getUsers');
cy.get('#loadUsers').click();
cy.wait('@getUsers');
9. How do you handle dynamic or changing elements in Cypress?
Cypress automatically retries commands until the element becomes available, making it well-suited for handling dynamic elements. You can use robust selectors like cy.contains(), indexes, or visible filtering when elements appear dynamically on user interaction. Instead of using static waits, Cypress encourages writing resilient tests that adapt to UI loading behaviors.
Example:
cy.contains('Submit').click();
10. How do you upload files in Cypress automation?
Cypress does not support native file upload directly through OS dialogs, so external libraries such as cypress-file-upload are commonly used. The file must exist inside the fixtures folder, and Cypress will attach the file to the file input element using .attachFile(). This approach allows validation of file upload functionality in web applications.
cy.get('input[type="file"]').attachFile('resume.pdf');
11. How do you handle and validate downloaded files in Cypress?
Cypress cannot directly interact with browser download dialogs, but it can verify the downloaded file within the cypress/downloads folder. After triggering a download, you can use cy.readFile() to ensure the file exists and validate its contents if needed. This helps confirm that the download feature in the application works correctly.
cy.readFile('cypress/downloads/report.csv').should('exist');
12. How can you capture screenshots and videos in Cypress?
Cypress supports both automatic and manual screenshots during test execution. Screenshots are captured automatically on test failure, but you can also trigger them manually using cy.screenshot(). When running tests in headless mode with cypress run, Cypress can record execution videos, which are helpful for debugging test failures and performance issues.
13. How do you test backend API requests using Cypress?
Cypress provides the cy.request() command that allows direct interaction with backend services without involving the UI. You can validate response status codes, headers, and payloads to ensure the API is functioning as expected. This helps in faster execution and stable API-level testing within the same framework.
cy.request('/api/users').then((response) => {
expect(response.status).to.eq(200);
});
14. What is Cypress Dashboard, and why is it used?
Cypress Dashboard is a cloud-based reporting and analytics platform that provides insights into test runs, execution logs, video recordings, and screenshots. It helps teams view the history of test executions and identify flaky tests and performance trends. It also supports parallel test execution and CI/CD integration, making it beneficial for large automation teams.
15. How do you perform cross-browser testing in Cypress?
Cypress supports major browsers like Chrome, Edge, Electron, and Firefox, enabling cross-browser compatibility testing. You can specify the browser from the command line to ensure that tests run and behave consistently across different browser environments. This is essential for validating real-world user scenarios.
npx cypress run --browser firefox
16. How do you handle Shadow DOM elements in Cypress?
Some modern web applications use Shadow DOM, which hides internal elements from standard DOM queries. Cypress provides the includeShadowDom option to allow selectors to access elements within the Shadow DOM. This ensures that tests can interact with encapsulated components without modifying application code.
cy.get('custom-element', { includeShadowDom: true })
.find('#shadow-input')
.type('Hello');
17. How do you handle multiple browser tabs in Cypress?
Cypress does not support controlling multiple browser tabs within the same test session due to its single-tab architecture. Instead, Cypress encourages testing navigation by forcing links to open in the same tab using invoke('removeAttr', 'target'). This ensures test stability while still verifying navigation behavior.
cy.get('a[target="_blank"]').invoke('removeAttr', 'target').click();
18. What is cy.wrap() in Cypress, and why is it used?
cy.wrap() is used when you want Cypress to interact with non-Cypress objects such as jQuery elements, arrays, or promises. By wrapping the object, Cypress adds command chaining and retry functionality, allowing seamless interaction inside the test flow. This is particularly useful when dealing with custom JavaScript code or values extracted from the DOM.
cy.wrap([1, 2, 3]).should('include', 2);
19. What is cy.viewport() and how is it useful in testing?
cy.viewport() allows testers to simulate different screen sizes and device resolutions during test execution. It is useful for testing responsive UI behavior across desktops, mobiles, and tablets. This helps ensure the user interface adapts correctly on various devices.
cy.viewport(375, 667); // Mobile size
20. How do you run Cypress tests in CI/CD pipelines?
Cypress integrates easily with CI/CD tools such as Jenkins, GitHub Actions, GitLab CI, and CircleCI. You can trigger test execution in headless mode using npx cypress run, and results can be stored or uploaded to the Cypress Dashboard. This enables continuous testing and faster release cycles with automated validation for every build.
21. How do you handle environment variables in Cypress?
Environment variables are used to store sensitive data such as credentials or URLs, and they can be defined in cypress.config.js, via the command line, or in separate configuration files. You can access them during tests using Cypress.env(). This helps keep confidential information out of test scripts and supports different environments like QA, Dev, and Production.
const password = Cypress.env('adminPassword');
22. What is the difference between cy.request() and cy.intercept()?
cy.request() is used to send direct API calls and validate responses without involving the UI, making tests faster and more reliable. cy.intercept() is used to spy on or stub HTTP requests initiated by the application during UI interactions. Both are essential for full-stack validation: one for backend-only testing and the other for monitoring real user flows.
23. What is the purpose of before(), beforeEach(), after(), and afterEach() hooks in Cypress?
Hooks allow you to structure your tests by running specific actions at defined points in the test lifecycle. before() runs once before all tests, beforeEach() runs before every test, and similarly, after() and afterEach() clean up after execution. These hooks help eliminate duplicate code and maintain test setup consistency.
Example:
beforeEach(() => {
cy.login();
});
24. How do you retry failed assertions in Cypress?
Cypress has built-in automatic retryability for most commands and assertions. Instead of writing loops or explicit waits, Cypress repeatedly checks the condition until it passes or times out. This makes tests more stable, especially when dealing with elements that take variable time to load.
Example:
cy.get('.status').should('contain', 'Success');
25. How do you stub or mock network requests in Cypress?
You can use cy.intercept() to mock API responses and control the behavior of the application during test execution. Stubbing helps isolate UI behavior from backend dependencies and avoids flaky tests caused by unstable network conditions. This is especially useful when testing error states or edge-case responses.
cy.intercept('GET', '/users', { fixture: 'users.json' }).as('mockUsers');
cy.visit('/dashboard');
cy.wait('@mockUsers');
26. How do you handle authentication in Cypress for secure applications?
Authentication can be handled using UI login flows or by bypassing the UI and directly setting tokens or cookies. Cypress allows sending API requests to obtain authentication tokens and then applying them before visiting secured pages. This approach significantly improves execution speed and avoids flaky login UI steps.
cy.request('POST', '/login', {
username: 'admin',
password: 'admin123'
}).then((res) => {
window.localStorage.setItem('authToken', res.body.token);
});
27. How do you manage time-based operations in Cypress tests?
Cypress provides time control commands such as cy.clock() to freeze time and cy.tick() to move the clock forward. These features help verify timers, animations, and countdowns without waiting in real-time. It ensures faster execution and precise validations of time-dependent UI behavior.
cy.clock();
cy.tick(5000);
28. What is Cypress Studio, and what purpose does it serve?
Cypress Studio is an experimental feature that allows testers to generate test steps interactively through a GUI. It automatically writes test code for actions like clicking and typing while interacting with the application. This feature assists beginners and speeds up initial test creation but is currently limited in flexibility and customization.
29. How do you handle elements inside an iframe in Cypress?
Since Cypress does not directly support iframe traversal, you must manually access the iframe’s contentDocument and wrap its contents. After wrapping, Cypress commands can be executed normally inside the iframe context. This allows interaction with embedded UI components.
cy.get('iframe')
.its('0.contentDocument.body')
.should('not.be.empty')
.then(cy.wrap)
.find('#username')
.type('Basha');
30. How do you parameterize test cases in Cypress?
Cypress supports data-driven testing by using arrays, fixtures, or external JSON data. You can iterate over the dataset using JavaScript loops or forEach() and execute the same test logic multiple times with different inputs. This reduces duplication and increases test coverage.
const testData = [
{user: 'user1@test.com', pass:'pass1'},
{user: 'user2@test.com', pass:'pass2'}
];
testData.forEach((data) => {
it(`Login test for ${data.user}`, () => {
cy.login(data.user, data.pass);
});
});
31. How do you run a single test or a group of tests in Cypress?
You can use .only to run a specific test case or .skip to temporarily ignore a test. Cypress also allows filtering groups of tests using tags or specific grep-like commands in configuration. This helps in faster debugging and selective execution during development.
it.only('Runs this test only', () => {
// test
});
32. What are the different test execution modes in Cypress?
There are mainly two modes: headed and headless.
- Headed mode opens a real browser where you can visually watch the tests run.
- Headless mode runs tests without UI and is commonly used in CI/CD pipelines.
Both modes help ensure consistent validation during manual development and automated builds.
npx cypress run --headless
33. How do you run Cypress tests in parallel?
Parallel execution can be enabled by connecting your project with Cypress Dashboard and passing flags such as --parallel during execution. Cypress distributes test specs to multiple machines or containers to reduce total execution time. This is extremely useful for large enterprise test suites.
npx cypress run --record --parallel
34. How do you control browser cookies and local storage in Cypress?
Cypress provides built-in commands to set, get, and clear cookies programmatically using cy.setCookie(), cy.getCookie(), and cy.clearCookies(). Similarly, local storage values can be manipulated using native browser APIs. This is especially useful for maintaining session states without repeating login steps.
cy.setCookie('token', 'abcd1234');
cy.getCookie('token').should('exist');
35. What is the difference between .should() and .then() in Cypress?
.should() is used for assertions and automatically retries until the condition is met, making it ideal for waiting on dynamic elements. .then() executes a callback function once the previous command yields a result and does not retry. Choosing the right one ensures tests remain stable and efficient.
36. How do you handle hover actions in Cypress?
Cypress does not provide a direct .hover() command because many hover states are triggered by CSS. However, you can simulate hover behavior using .trigger('mouseover') or by forcing visibility styles. This allows validation of tooltips, dropdowns, and hidden elements that appear on hover.
cy.get('.menu-item').trigger('mouseover');
37. How do you assert the length of a list of elements in Cypress?
You can retrieve a group of elements using selectors and verify the expected count using .should('have.length', expectedValue). This helps confirm that dynamic elements, such as product lists or search results, load correctly based on user actions.
cy.get('.product-card').should('have.length', 10);
38. How do you test responsive design with Cypress?
Cypress allows simulating different screen resolutions using cy.viewport(). You can test breakpoints for desktops, tablets, and mobiles to ensure UI components adjust properly. This helps validate real user experiences across multiple devices.
cy.viewport('iphone-6');
39. How do you view execution logs and debugging information in Cypress?
Cypress provides detailed logging in the Test Runner, where each command is recorded along with snapshots. Developers can also use cy.log() to print custom debug messages. Additionally, browser developer tools like console logs and network tabs are fully accessible during test execution.
cy.log('Checking login button visibility');
40. How do you disable test retries in Cypress?
Although Cypress supports automatic retries for failing tests, you can disable them by adjusting project configuration. Setting the "retries": 0 ensures that failed tests do not rerun, providing immediate visibility of issues.
Example in cypress.config.js:
retries: 0
41. How do you ignore uncaught exceptions during Cypress tests?
Cypress fails a test when an unhandled exception occurs in the application. However, you can override this by listening for the uncaught:exception event and returning false, preventing the test from failing. This helps when dealing with third-party libraries or non-critical script errors.
Cypress.on('uncaught:exception', () => {
return false;
});
42. How do you intercept and validate GraphQL requests in Cypress?
You can use cy.intercept() to spy on GraphQL API calls by matching the request body or endpoint. After intercepting the request, Cypress allows assertions on response structure or payload. This is useful for applications heavily driven by GraphQL queries and mutations.
cy.intercept('POST', '/graphql').as('graphqlCall');
cy.wait('@graphqlCall');
43. How do you validate element visibility in Cypress?
Visibility can be validated using .should('be.visible') to ensure elements are displayed and interactable. Cypress automatically retries until the visibility condition is satisfied, making UI validation reliable even when elements take time to load.
cy.get('#submit').should('be.visible');
44. How do you handle file downloads triggered by UI actions in Cypress?
When a download is triggered, Cypress checks for the file inside the cypress/downloads folder. Using cy.readFile() helps confirm that the file is downloaded correctly and validates important data within the file. This ensures that critical exports like reports or CSV downloads work as expected.
cy.readFile('cypress/downloads/report.xlsx').should('exist');
45. How do you integrate Cypress with Jenkins for automated execution?
You can configure Jenkins to install Cypress dependencies and run tests using command-line execution. By adding Cypress scripts to Jenkins pipeline steps, tests can run automatically on every commit. Logs, reports, and videos can be archived for debugging continuous delivery pipelines.
npx cypress run
46. What is the role of Cypress configuration files like cypress.config.js?
The cypress.config.js file is used to define project-level settings such as base URL, timeouts, environment variables, and browser viewport defaults. Centralizing these configurations ensures consistent behavior across all test runs and simplifies environment-specific test execution. This keeps individual test scripts cleaner and focused only on test logic.
47. What is the difference between cy.get() and cy.find()?
cy.get() searches for elements throughout the entire DOM. It is the primary way to locate elements globally on a page. In contrast, cy.find() only searches within an already-located element. This means you first use cy.get() to locate a parent container, and then cy.find() helps target elements inside that container. This improves test clarity and reduces dependency on long selectors.
Example:
cy.get('.form-container').find('input[name="email"]');
48. How do you perform API testing in Cypress?
Cypress provides the cy.request() command to test backend APIs without interacting with the UI. You can send GET, POST, PUT, DELETE, or other HTTP methods and validate the response status, headers, and payload. This allows creating hybrid tests where backend validations support UI flows.
Example:
cy.request('GET', '/api/users')
.its('status')
.should('equal', 200);
49. How can you capture and validate browser console errors in Cypress?
Cypress allows listening to browser events such as window:console to track errors. You can attach listeners using cy.on() to detect JavaScript errors and fail tests if unexpected issues occur. This helps catch silent frontend failures that users might experience in production.
Example:
cy.on('uncaught:exception', (err) => {
expect(err.message).to.include('TypeError');
return false;
})
50. How do you handle file upload in Cypress?
Since Cypress cannot interact directly with the native file dialog, file uploads are simulated using the attachFile() command from the cypress-file-upload plugin. You provide the file path from cypress/fixtures, and Cypress sets it as the input file value before submitting the form or triggering related UI behavior.
Example:
cy.get('input[type="file"]').attachFile('test-data.xlsx');
51. How do you pass environment variables in Cypress?
Cypress supports environment variables through configuration files, CLI flags, or cypress.env.json. This is useful for storing credentials, API endpoints, or test modes without hardcoding values in the test script.
Example passing via CLI:
npx cypress run --env username=testUser,password=pass123
Access inside test:
Cypress.env('username')
52. How do you handle date pickers in Cypress?
Most date pickers need interaction with UI elements like input fields, calendar widgets, or direct value updates. If the UI interaction is complex, you can use DOM manipulation like typing a date string directly into the field if it’s supported. The strategy depends on whether the component allows keyboard input or requires clicking calendar elements.
Example:
cy.get('#dob').type('2025-10-27');
53. What is flaky testing and how do you reduce flakiness in Cypress?
Flaky tests pass sometimes and fail other times even when the application is unchanged. Cypress flakiness usually happens due to network delays, animations, unstable selectors, or race conditions. Best practices to reduce flakiness include: using reliable selectors (data-* attributes), waiting for specific conditions rather than fixed waits, disabling animations, mocking network calls, and avoiding unnecessary .force() actions.
54. How do you run Cypress tests in multiple browsers?
Cypress supports Chrome-family browsers, Edge, and Firefox. To run tests in different browsers, you define them in the command using the --browser flag or select them from the Test Runner UI. CI/CD pipelines can automatically run tests across multiple browsers to ensure cross-browser stability.
Example:
npx cypress run --browser firefox
55. What is network stubbing and how does Cypress support it?
Network stubbing (or intercepting) means simulating backend responses to control test behavior without relying on real APIs. Cypress provides the cy.intercept() command to mock request responses, delay responses, validate network payloads, and simulate failures. This creates more predictable and faster UI tests.
Example:
cy.intercept('GET', '/api/products', { fixture: 'products.json' });
56. How do you use tags to run selected tests in Cypress?
By default, Cypress doesn’t include built-in tags, but plugins like cypress-grep allow grouping and filtering tests using tags in it() or describe(). This enables running only targeted parts of the suite, such as smoke or regression tests, improving speed during development.
Example:
// Adding a tag
it('should test login flow', { tags: ['smoke'] }, () => {});
Run tagged tests:
npx cypress run --env grep=smoke
57. What is the purpose of cy.intercept() and how is it different from cy.route()?
cy.intercept() is used for network spying, mocking, and stubbing in modern Cypress tests. It supports all types of requests including Fetch/XHR and is protocol-aware. cy.route() was used in older versions but only supported XHR-based calls. cy.intercept() has replaced cy.route() because modern applications use multiple networking methods that require broader support.
58. How do you test file downloads in Cypress?
To test downloads, Cypress can listen to network calls triggering downloads using cy.intercept() and then verify that the server responded correctly. If validating the downloaded file content is required, plugins like cypress-downloadfile help check file existence and size in the downloads folder.
Basic approach:
cy.intercept('GET', '/download/report').as('file');
cy.get('#download-btn').click();
cy.wait('@file').its('response.statusCode').should('eq', 200);
59. How do you validate cookies in Cypress?
Cypress provides cookie commands such as cy.getCookie(), cy.setCookie(), and cy.clearCookies() to manage and assert cookie values. This is especially useful when testing sessions or user authentication logic tied to cookies.
Example:
cy.getCookie('session_id')
.should('have.property', 'value')
60. How do you handle browser alerts and confirmations in Cypress?
Cypress automatically handles JavaScript alerts and confirmation dialogs. For validations, you can use the cy.on() event listener to verify alert text or control behavior. Cypress captures alerts so tests continue smoothly without manual intervention.
Example:
cy.on('window:alert', (text) => {
expect(text).to.equal('Form submitted');
});
61. What is the difference between retries and waiting in Cypress?
Cypress automatically retries commands like cy.get() until the element appears within the default timeout. This built-in retry feature eliminates most manual waits. However, waiting is still needed in cases like network delays or animations. Explicit waits should be used carefully to avoid slowing down tests and introducing flakiness.
Good practice:
cy.get('#loading').should('not.exist');
62. How do you measure performance using Cypress?
Cypress can track performance indirectly by capturing page load timing through browser APIs such as performance.timing or by checking response durations using cy.intercept(). Although Cypress is not a dedicated performance tool, basic loading and response benchmarks help catch degradations during UI testing.
Example:
cy.window().then((win) => {
const loadTime = win.performance.timing.loadEventEnd - win.performance.timing.navigationStart;
expect(loadTime).to.be.lessThan(3000);
});
63. When should you use .each() in Cypress testing?
Use .each() when you need to iterate across multiple matching elements and perform checks on each one, such as a list of products or menu options. It ensures every item in a collection meets expected UI or functional requirements.
Example:
cy.get('.product-list li').each(($item) => {
cy.wrap($item).should('be.visible');
});
64. What types of waits should you avoid in Cypress and why?
Fixed waits such as cy.wait(5000) should be avoided because they pause execution unnecessarily, making tests slower and unreliable. It is better to rely on Cypress’s automatic retries or wait for specific conditions like element visibility or network request completion. This ensures stable and fast test execution.
65. How do you test responsive behavior using Cypress?
Cypress allows changing the browser viewport using the cy.viewport() command. You can simulate common device sizes such as phones, tablets, and desktops to validate responsiveness. This ensures layout and functional consistency across different screen dimensions.
Example:
cy.viewport('iphone-x');
cy.visit('/');
cy.get('.menu-icon').should('be.visible');
66. How do you ignore specific JavaScript exceptions in Cypress during test execution?
Cypress fails a test when there is an uncaught exception in the application. However, if the error is expected and should not block test results, you can suppress it using the uncaught:exception event. Returning false from the handler prevents Cypress from failing the test. This approach is useful when dealing with third-party scripts that may throw harmless errors.
Example:
cy.on('uncaught:exception', () => {
return false;
});
67. What are Page Objects in Cypress and how do they help test maintenance?
Page Objects are separate files that store UI locators and related functions, keeping test logic clean and centralized. By isolating selectors and reusable actions, Page Objects improve readability, reduce code duplication, and simplify updates when UI changes.
Example structure:
pageobjects/
loginPage.js
homePage.js
68. How do you stub window and global browser functions in Cypress?
Cypress offers built-in stubbing functionality using cy.stub(). You can replace browser functions such as window.fetch, alert, or custom methods to simulate specific behaviors or prevent test interruptions.
Example:
cy.window().then((win) => {
cy.stub(win, 'alert').as('alertStub');
});
69. Can Cypress handle multiple tabs? If not, how do you test new tab behavior?
Cypress does not support controlling multiple browser tabs because its architecture runs within a single browser window. To test new tab behavior, testers modify the link attribute using invoke('removeAttr', 'target') so that the link opens in the same tab. Alternatively, interactions triggered in the new tab can often be tested directly by visiting the target URL.
Example:
cy.get('a[target="_blank"]')
.invoke('removeAttr', 'target')
.click();
70. How do you restrict test execution to a single test or suite in Cypress?
You can add .only to describe() or it() to run that block exclusively. This is helpful during debugging and development to avoid executing the entire test suite. .only must be removed before committing code to source control.
Example:
it.only('runs only this test', () => {});
71. How do you validate CSS properties in Cypress?
CSS properties can be validated using should() to check for specific visual styles. Cypress retrieves values computed by the browser, making it reliable for detecting layout or styling issues.
Example:
cy.get('.button')
.should('have.css', 'background-color', 'rgb(0, 123, 255)');
72. How do you handle dynamic dropdowns in Cypress?
Dynamic dropdowns generate suggestions based on user input. You can type into the input field and then select the matching option that appears in the DOM. Assertions ensure that the dropdown behaves correctly and displays expected values.
Example:
cy.get('#search').type('tes');
cy.get('.suggestions li').contains('Testing Tools').click();
73. How do you store and reuse data across multiple Cypress tests?
When data needs to persist between tests, fixtures, environment variables, or browser storage (cookies/localStorage) can be used. Cypress does not share state automatically, so tests must explicitly set or restore values as part of their setup process.
Example:
beforeEach(() => {
cy.restoreLocalStorage();
});
afterEach(() => {
cy.saveLocalStorage();
});
74. How do you test visual regressions using Cypress?
Cypress itself does not include visual diffing, but plugins like cypress-image-snapshot compare screenshots from previous runs. Cypress captures UI images, generates diff reports, and alerts teams if visual elements shift unexpectedly due to code changes. This protects branding, layout, and styling across releases.
75. How do you locate elements with dynamic IDs in Cypress?
Dynamic IDs change on every page load, making direct selection unreliable. Instead of ID selectors, it’s better to target the element using stable attributes such as data-*, class names, role attributes, or text content. Many teams embed data-cy or data-test attributes specifically for automation.
Example:
cy.get('[data-cy="submit-btn"]');
Conclusion
Cypress has rapidly grown into one of the most trusted tools for fast, stable, and developer-friendly UI automation. By preparing for these Cypress interview questions, you strengthen your understanding of real-world testing scenarios — from handling DOM interactions and API validations to scaling automation with fixtures, assertions, and CI/CD integration.
Whether you’re exploring basic concepts or digging into Cypress automation interview questions and advanced challenges seen in Cypress interview questions for experienced roles, the key to success is hands-on practice. Keep building tests, experimenting with Cypress features, and staying updated with new releases.
Master Cypress well, and you’ll be fully equipped to impress interviewers and excel in modern web testing roles.
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