01
How do you install and start a Playwright project?
Show answer
Run npm init playwright@latest, which sets up config, example tests and browsers; execute with npx playwright test.
Virtusa Playwright Testing Interview Questions & Answers
Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About Virtusa hiring for Playwright Testing roles
Virtusa is a digital engineering and IT services company providing application development, testing, cloud and data services. It has a strong client base in banking, financial services, healthcare and telecom. Its India centres in Hyderabad, Chennai and Bengaluru hire for software engineers, test engineers and data professionals.
For Playwright Testing roles, this Virtusa practice set focuses most on Playwright Core (9), JavaScript and TypeScript (5), API Testing (4), Network Mocking (3). It has 17 easy, 22 medium, 1 hard questions, so you can start easy and work up to the harder ones.
- Company type
- IT services
- Headquarters
- Southborough, Massachusetts, USA
- Main India offices
- Hyderabad, Chennai, Bengaluru
Virtusa Playwright Testing interview process
- Online assessment (aptitude + reasoning)
- Coding test
- Technical interview
- HR round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
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02
How do you mock network traffic using a HAR file?
Show answer
Record once with page.routeFromHAR('data/orders.har', { url: '**/api/**', update: true }) while running against a real server. Later runs replay the saved responses from the HAR instead of hitting the backend. You can edit the stored JSON to create edge cases. Re-record when the API changes, otherwise the replay drifts from reality.
03
Write a GitHub Actions job that runs the suite in four shards.
Show answer
jobs:
e2e:
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
shard: [1, 2, 3, 4]
steps:
- uses: actions/checkout@v4
- uses: actions/setup-node@v4
- run: npm ci && npx playwright install --with-deps
- run: npx playwright test --shard=${{ matrix.shard }}/4 --reporter=blob
- uses: actions/upload-artifact@v4
with:
name: blob-${{ matrix.shard }}
path: blob-report
04
How do you test geolocation, permissions and time zones?
Show answer
Set them in the context options (geolocation, permissions, timezoneId, locale) to simulate users from other regions.
05
Locator vs ElementHandle?
Show answer
A Locator is lazy, re-resolved on every action and auto-waits (recommended). An ElementHandle points to one DOM node and can go stale.
06
What are union types and type narrowing in TypeScript?
Show answer
A union type allows several types, such as string | number or 'admin' | 'user'. Before using type-specific methods, you narrow the type with checks like typeof, instanceof, in or comparing a literal field. TypeScript then knows the exact type inside that branch. In tests, unions model options like a role parameter that accepts only known values.
07
How do you validate an API response in Playwright?
Show answer
Assert the status with expect(res.status()).toBe(200), parse res.json() and check fields, using schema validation for the structure.
08
How can you view a trace file without a local Playwright install?
Show answer
Open trace.playwright.dev in a browser and drag the trace zip onto the page. It is a static web app that loads the trace locally in the browser, so the file is not uploaded to a server. This lets developers or managers look at a failed CI run quickly. For full features and offline use, npx playwright show-trace works too.
09
Why should you start waitForResponse before the action that triggers it?
Show answer
If you click first and then wait, the response may already have arrived, so the wait misses it and times out. Create the promise first, then act, then await it: const resp = page.waitForResponse('**/api/cart'); await addButton.click(); await resp. waitForRequest works the same way for outgoing requests.
10
How do you validate response headers?
Show answer
Use response.headers() for an object of lower-cased header names, or headersArray() for duplicates. Assert content-type contains application/json, cache-control matches the policy, and security headers such as strict-transport-security are present. Also check that sensitive headers like server version are not exposed. Header checks catch configuration bugs that body checks miss.
11
How do you send query parameters in an API request?
Show answer
// GET /api/products?category=books&page=2
const res = await request.get('/api/products', {
params: { category: 'books', page: 2 },
});
expect(res.ok()).toBeTruthy();
const body = await res.json();
expect(body.items.length).toBeGreaterThan(0);
12
How do you read environment variables safely in a TypeScript test project?
Show answer
Load a .env file with a package like dotenv in playwright.config, then read process.env.BASE_URL. Values are string | undefined, so validate them early and throw a clear error if a required one is missing. Keep .env out of git and commit an .env.example instead. In CI, set the same names as secret variables.
13
What is an ARIA snapshot and how does toMatchAriaSnapshot work?
Show answer
An ARIA snapshot is a YAML description of the accessibility tree for a part of the page: roles, names and states such as checked or level. toMatchAriaSnapshot compares the live tree of a locator against that template, and partial templates or regular expressions can be used for changing text. It tests structure and semantics, so it survives styling changes that would break a pixel screenshot.
14
How do you change the default assertion timeout?
Show answer
Web-first assertions wait 5 seconds by default. Change it globally in playwright.config with expect: { timeout: 10000 }, or for one assertion with await expect(locator).toBeVisible({ timeout: 15000 }). Raise it only for genuinely slow steps like report generation. Raising it everywhere hides performance problems and makes failing tests slower to report.
15
How do you update screenshot baselines after an intended UI change?
Show answer
Run the tests with npx playwright test --update-snapshots, optionally filtered to the affected files or a tag. Playwright rewrites the baselines with the new images. Newer versions also accept modes such as --update-snapshots=changed or missing so only the needed files are touched. Always look at the diff in the pull request before merging, because blindly updating hides real regressions.
16
How do you run a single test or file in Playwright?
Show answer
npx playwright test tests/login.spec.ts, add -g "test title" to match a name, or use test.only while debugging.
17
How do access modifiers help in page object classes?
Show answer
private and protected hide internal locators and helper steps, so tests can only call meaningful public methods such as login or addToCart. This keeps tests readable and lets you change internals without breaking callers. readonly on the page field prevents it from being replaced. TypeScript enforces these at compile time only, not at runtime.
18
What is the playwright/index.tsx file used for?
Show answer
It is the entry file bundled into the component test page, so it runs in the browser before every mount. You import global CSS, fonts and theme files there, and register beforeMount and afterMount hooks to wrap components in providers such as a router, theme or state store. Keeping this setup in one place means individual tests can mount components without repeating boilerplate.
19
How do you handle a new tab?
Show answer
const [newPage] = await Promise.all([
context.waitForEvent('page'),
page.getByText('Open').click(),
]);
await newPage.waitForLoadState();
20
How do you run tests against a preview deployment created for each pull request?
Show answer
Make baseURL come from an environment variable, such as process.env.BASE_URL, with a default for local runs. In the pipeline, wait for the preview deployment to be ready, read its URL from the deployment step and pass it to the test job. Add a quick health check request first, so a failed deployment is reported clearly instead of as hundreds of test failures.
21
What are the serial and parallel modes of test.describe.configure?
Show answer
test.describe.configure({ mode: 'serial' }) runs tests in order in one worker, and if one fails the rest are skipped. mode: 'parallel' lets tests in one file run across workers. Serial mode suits a true step-by-step flow, but it makes tests depend on each other, so prefer independent tests and use serial only when there is no alternative.
22
How do you read test data from a JSON file and loop over it?
Show answer
import users from './data/users.json';
for (const u of users) {
test(`login as ${u.role}`, async ({ page }) => {
await page.goto('/login');
await page.getByLabel('Email').fill(u.email);
await page.getByLabel('Password').fill(u.password);
await page.getByRole('button', { name: 'Sign in' }).click();
});
}
23
What are generics in TypeScript?
Show answer
Placeholders for types that make reusable code type-safe, for example a helper function returning the same type of item that it receives.
24
How do you test accessibility with Playwright?
Show answer
Integrate axe-core through @axe-core/playwright, run an analysis on the page and assert that there are no violations.
25
How do you set baseURL and common headers for API tests?
Show answer
Put them in the use block of playwright.config: use: { baseURL: process.env.API_URL, extraHTTPHeaders: { Accept: 'application/json', Authorization: `Bearer ${process.env.TOKEN}` } }. The request fixture then sends them on every call, and tests use short paths like /api/users. Keep tokens in environment variables, never in the repository.
26
How do you handle file uploads and downloads?
Show answer
setInputFiles on the input for uploads; for downloads wait on page.waitForEvent('download') and save or inspect the file.
27
What is a worker process in Playwright Test?
Show answer
A worker is a separate operating system process that runs test files. Each worker starts its own browser, and tests inside a worker run one after another, while different workers run at the same time. Workers do not share memory, so you cannot pass variables between them. Worker-scoped fixtures are created once per worker, which is why expensive setup is often placed there.
28
What does the DEBUG=pw:api environment variable do?
Show answer
Setting DEBUG=pw:api prints detailed logs of every Playwright API call to the terminal, including waits and retries inside actions. It helps when a test hangs and you need to see exactly which step is waiting and why. Other channels such as pw:browser show browser process output. It is noisy, so use it only while investigating.
29
How do you handle multiple tabs or pop-ups?
Show answer
Wait for the popup event with const [popup] = await Promise.all([page.waitForEvent('popup'), page.click('a')]), then interact with popup.
30
Where does Playwright store baseline screenshots and how are the files named?
Show answer
By default baselines go into a folder next to the test file named after it, for example checkout.spec.ts-snapshots. The file name combines the name you give, the project name and the platform, such as home-chromium-linux.png. Because the browser and operating system are part of the name, each project keeps its own baseline. You commit these images to the repository so every run compares against the same files.
31
How is a component test different from an end-to-end test?
Show answer
An end-to-end test opens the full deployed app, logs in and goes through pages backed by a real server. A component test mounts one component in isolation with props you control, so there is no backend, routing or login. Component tests are faster and pinpoint the failing piece, while end-to-end tests prove the parts work together. A healthy suite has many component tests and fewer end-to-end journeys.
32
How many workers does Playwright use by default, and how do you change it?
Show answer
By default Playwright uses about half of the logical CPU cores on the machine. You can set workers in playwright.config as a number or a percentage string such as '50%', or override it on the command line with --workers=4. Many teams use process.env.CI ? 2 : undefined so CI runners with few cores are not overloaded while laptops use their full power.
33
What does getByRole do and why is it the first-choice locator?
Show answer
getByRole finds elements by their ARIA role and accessible name, the same way screen readers and users see the page. For example getByRole('button', { name: 'Save' }) keeps working when CSS classes or DOM structure change. It also pushes the team towards accessible markup. The trade-off is that badly built components without proper roles may need a test id instead.
34
Does headless mode behave differently from headed mode?
Show answer
Modern Chromium headless uses the same browser code as headed, so behaviour is very close. Differences still appear in viewport size, GPU rendering, fonts and some OS dialogs. Tests should set an explicit viewport and not depend on window focus. If something passes headed but fails headless, record a trace and compare screenshots.
35
How do you wrap a component in a theme or router provider using hooksConfig?
Show answer
// playwright/index.tsx
import { beforeMount } from '@playwright/experimental-ct-react/hooks';
import { ThemeProvider } from '../src/theme';
export type HooksConfig = { theme?: 'light' | 'dark' };
beforeMount<HooksConfig>(async ({ App, hooksConfig }) => {
return <ThemeProvider mode={hooksConfig?.theme ?? 'light'}><App /></ThemeProvider>;
});
// in a test
await mount(<Header />, { hooksConfig: { theme: 'dark' } });
36
What is the Playwright Inspector and how do you open it?
Show answer
The Inspector is a debug window that lets you step through test actions one by one, see the locator being used and highlight it on the page. Open it with npx playwright test --debug, with PWDEBUG=1, or by calling page.pause(). It runs headed with no timeout, so you can explore the page at each step and edit locators live.
37
Write a beforeEach hook that opens the home page and accepts the cookie banner.
Show answer
test.beforeEach(async ({ page }) => {
await page.goto('/');
const accept = page.getByRole('button', { name: 'Accept cookies' });
if (await accept.isVisible()) {
await accept.click();
}
});
38
How do you mock one GraphQL query when all calls go to /graphql?
Show answer
await page.route('**/graphql', async route => {
const body = route.request().postDataJSON();
if (body.operationName === 'GetCart') {
return route.fulfill({ json: { data: { cart: { items: [] } } } });
}
return route.fallback();
});
39
How is toBeVisible different from toBeAttached?
Show answer
toBeAttached only checks that the element exists in the DOM. toBeVisible also needs it to have a non-empty bounding box and no visibility:hidden style. A hidden modal can be attached but not visible. Use toBeVisible for anything a user should see, and toBeAttached for hidden inputs or elements whose presence matters more than appearance.
40
How do you run tests in Docker?
Show answer
Use the official Playwright image which contains browsers and dependencies, mount the project and run npx playwright test for consistent CI environments.
Tips to crack the Virtusa Playwright Testing interview
- Revise banking and healthcare domain basics, which are important industries in Virtusa's client portfolio.
- Practise coding questions and SQL queries for both the online test and technical interview.
- Learn about its engineering-first positioning and be ready to describe how you approach learning new tools.
- Keep a one-minute story ready for every project on your CV: problem, your part, tools, result.
- Practise the hard questions on this page aloud; Virtusa interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the Virtusa Playwright Testing interview?
Candidates usually go through 4 stages: Online assessment (aptitude + reasoning); Coding test; Technical interview; HR round. The exact rounds change with the role, team, location and your experience, so confirm the process with the recruiter.
Which topics should I prepare for the Virtusa Playwright Testing interview?
This practice set leans on Playwright Core (9), JavaScript and TypeScript (5), API Testing (4), Network Mocking (3). Revise those first, then practise explaining one or two of your own projects end to end, because most Virtusa interviewers ask you to walk through real work.
Are these the exact questions asked at Virtusa?
No. These are curated practice questions that match the skills and difficulty usually tested in it services interviews like Virtusa's. They are not a leaked or verified list of past questions.
Where does Virtusa hire Playwright Testing professionals in India?
Virtusa has large teams in Hyderabad, Chennai, Bengaluru. Openings and locations change often, so check the Virtusa careers page and filter by city and experience.
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