01
How do you test API error scenarios?
Show answer
Send invalid payloads or missing auth and assert 400, 401 or 404 codes and the error message bodies.
Playwright Testing Interview Questions for Fintech Companies
40 questions weighted to the interview style of fintech companies — 4 easy, 30 medium, 6 hard.
How fintech companies interview for Playwright Testing
Fintech companies care about correctness, security and scale because they move money. Interviews add domain questions on payments, risk, reconciliation and compliance to the usual technical rounds, and often include practical tasks.
This set focuses on JavaScript and TypeScript (8), API Testing (5), Framework Design and CI/CD (5), Fixtures and Hooks (4).
HR round Hiring manager round Online coding assessment Technical round 1 (DSA) Online assessment or assignment
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02
How do you assert that a request was sent with the correct payload?
Show answer
const reqPromise = page.waitForRequest(r =>
r.url().endsWith('/api/orders') && r.method() === 'POST'
);
await page.getByRole('button', { name: 'Place order' }).click();
const req = await reqPromise;
expect(req.postDataJSON()).toMatchObject({ qty: 2, sku: 'MOU-01' });
03
How is a Playwright component test different from a Jest unit test with jsdom?
Show answer
jsdom is a JavaScript imitation of the DOM running in Node, so layout, CSS, real focus and many browser APIs are missing or fake. A Playwright component test renders in real Chromium, Firefox or WebKit, so visibility, scrolling, styles and keyboard behaviour are real. The cost is a build step and a browser, so it is slower than jsdom. Pure logic and hooks are still cheaper in unit tests.
04
How do you mock WebSocket traffic in Playwright?
Show answer
Use page.routeWebSocket with a URL pattern. The handler gets a WebSocketRoute: you can reply to messages with ws.onMessage and ws.send without any server, or call connectToServer() to sit in the middle and change messages in both directions. This lets you test live dashboards and chat apps, for example pushing a fake price update.
05
What is the difference between a type annotation and a type assertion with as?
Show answer
A type annotation such as const user: User = data asks the compiler to check that the value really fits User. A type assertion such as data as User tells the compiler to trust you, so mismatches are not reported. In test code assertions are risky on API responses, because a wrong field passes compilation and fails later. Prefer annotations, type guards or runtime schema validation.
06
Why should the Playwright Docker image version match your package version?
Show answer
Each Playwright version expects specific browser builds. The official Playwright Docker image tagged v1.x.y-noble contains the browsers for that exact version. If package.json has a different version, tests fail because browsers are missing or mismatched. Pin both together and update them in the same pull request.
07
What is the difference between null and undefined?
Show answer
undefined means a variable has not been assigned; null is an intentional empty value.
08
A setup fixture creates expensive test data and suite time has doubled. How do you redesign it?
Show answer
Measure first with the report timings. Then create data through the API instead of the UI, move read-only shared data into a worker-scoped fixture, and seed common reference data once in a setup project. Keep per-test data only for things a test changes. Cache login with storageState. This usually cuts setup time sharply without losing isolation.
09
How do you write data-driven API tests with many inputs?
Show answer
const cases = [
{ email: '', status: 400 },
{ email: 'bad', status: 400 },
{ email: 'ok@test.in', status: 201 },
];
for (const c of cases) {
test(`signup with '${c.email}'`, async ({ request }) => {
const res = await request.post('/api/signup', { data: { email: c.email } });
expect(res.status()).toBe(c.status);
});
}
10
What are web-first assertions?
Show answer
Assertions like expect(locator).toBeVisible() that retry until they pass or time out, unlike one-off checks.
11
Write a typed helper that retries an async function a few times.
Show answer
async function retry<T>(fn: () => Promise<T>, times = 3): Promise<T> {
let lastError: unknown;
for (let i = 0; i < times; i++) {
try {
return await fn();
} catch (e) {
lastError = e;
}
}
throw lastError;
}
12
How do you filter a list of locators by text or by a child element?
Show answer
// pick one product card from many
const card = page.getByRole('listitem')
.filter({ hasText: 'Wireless Mouse' })
.filter({ has: page.getByRole('button', { name: 'Add to cart' }) });
await card.getByRole('button', { name: 'Add to cart' }).click();
// hasNotText and hasNot exclude matches
13
A component test passes alone but fails when the full component suite runs. What do you check?
Show answer
Look for state that leaks between mounts: global stores or singletons created at module level in index.tsx, timers or listeners not cleaned up on unmount, and shared mock data mutated by one test. Make the providers create fresh state in beforeMount each time and reset mocks per test. Running with --repeat-each and a single worker often reproduces the leak quickly.
14
Write a GitHub Actions job that runs the suite in four shards.
Show answer
jobs:
e2e:
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
shard: [1, 2, 3, 4]
steps:
- uses: actions/checkout@v4
- uses: actions/setup-node@v4
- run: npm ci && npx playwright install --with-deps
- run: npx playwright test --shard=${{ matrix.shard }}/4 --reporter=blob
- uses: actions/upload-artifact@v4
with:
name: blob-${{ matrix.shard }}
path: blob-report
15
Tell me about setting up CI for a test suite.
Show answer
Situation: our team ran tests only on laptops before releases. Task: run them automatically on every pull request. Action: I created a CI workflow with browser install, sharding over four machines, merged HTML reports and traces on retry. Result: feedback came within twelve minutes on each pull request, and release-day surprises dropped sharply.
16
How do you add build details such as the commit and environment to the test report?
Show answer
Set the metadata field in playwright.config, for example metadata: { commit: process.env.GIT_SHA, env: process.env.TEST_ENV }, which reporters can read and recent HTML reports show. Inside tests use testInfo.annotations.push for per-test details like a ticket id. Custom reporters can read config.metadata in onBegin and include it in messages or uploads.
17
What are fixtures and how do you create a custom one?
Show answer
Fixtures set up and tear down test dependencies. Extend with test.extend({ loggedInPage: async ({ page }, use) => { ...; await use(page); } }).
18
What is the difference between synchronous and asynchronous code?
Show answer
Synchronous code runs line by line and blocks; asynchronous code starts a task and continues, handling the result later with promises or await.
19
How does Playwright's trace viewer help?
Show answer
It records screenshots, DOM snapshots, network calls and actions per step so you can replay a failed run and see exactly what happened.
20
How do you mock an API response?
Show answer
await page.route('**/api/users', route =>
route.fulfill({ status: 200, json: [{ id: 1, name: 'Test' }] })
);
21
Why can beforeAll run more than once in a Playwright run?
Show answer
Each worker is a separate process with its own state. When tests from a file are split across workers, or a worker restarts after a failure, beforeAll runs again in the new worker. So never assume it runs only once globally. For one-time setup across the whole run, use a setup project with dependencies or globalSetup.
22
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.
23
How do you test that a modal dialog traps focus and returns it when closed?
Show answer
Open the dialog with a button and assert the dialog role is visible and focus moved inside it. Press Tab more times than there are controls and check with toBeFocused that focus never leaves the dialog. Press Escape, assert the dialog is hidden, and check that the opening button is focused again. Running the same test with Shift+Tab covers backward navigation as well.
24
How do you test the difference between 401 and 403 responses?
Show answer
401 Unauthorized means the caller is not authenticated, such as a missing or expired token. 403 Forbidden means the caller is known but lacks permission. Test 401 by calling without a token or with an invalid one. Test 403 by calling an admin endpoint with a normal user's token. Assert the status and that no data leaks in the body.
25
How do you run Playwright in GitHub Actions?
Show answer
Workflow: checkout → setup-node → npm ci → npx playwright install --with-deps → npx playwright test → upload playwright-report as an artifact.
26
A test fails only in WebKit. How do you investigate?
Show answer
Run it alone with --project=webkit --headed and record a trace. Compare it with the Chromium trace to see where behaviour differs, such as date input format, scrolling, font rendering or a missing browser API. Check the app's support matrix. If it is a real product bug, raise it, and skip the test for WebKit with a linked ticket until it is fixed.
27
How do you run the same visual tests at mobile, tablet and desktop sizes?
Show answer
Create one project per size in playwright.config, for example using devices['Pixel 7'], devices['iPad Mini'] and a desktop viewport, and point them at the same visual test files with testMatch or a tag. Because the project name is part of the baseline file name, each size keeps its own images automatically. This keeps the test code identical while covering responsive layouts.
28
What is the difference between toHaveScreenshot and toMatchSnapshot?
Show answer
toHaveScreenshot is for images of a page or locator. It waits for the page to become visually stable, retries the capture until two shots match, and supports options like mask and animations. toMatchSnapshot compares any value you pass in, such as a string, a buffer or text output, against a stored file, without waiting or retrying. Use toHaveScreenshot for UI and toMatchSnapshot for generated text or file content.
29
How do you run tests in parallel and control workers?
Show answer
Files run in parallel by default; set workers in the config and use test.describe.configure({ mode: 'parallel' }) for tests inside a file.
30
An API test fails randomly because another test changes the same record. How do you fix it?
Show answer
Make each test own its data. Create the record inside the test or a fixture with a unique name, such as one using a timestamp or the worker index, and delete it in teardown. Avoid shared seed records for anything that gets modified. Shared read-only reference data is fine. This also lets tests run fully in parallel.
31
How do you integrate Playwright with Allure or other reports?
Show answer
Install the allure-playwright reporter, add it in the config reporters array and generate the report from the allure-results folder in CI.
32
How do you work with iframes?
Show answer
const frame = page.frameLocator('#payment-frame');
await frame.getByLabel('Card number').fill('4111 1111 1111 1111');
33
What is the difference between ES modules and CommonJS?
Show answer
ES modules use import and export and are the modern standard, loaded statically. CommonJS uses require and module.exports and is the older Node.js style. Playwright supports both, and TypeScript test projects usually write import syntax. Mixing them causes errors such as require is not defined, so set type in package.json and tsconfig consistently.
34
What does the optional chaining operator do?
Show answer
obj?.a?.b safely reads nested properties and returns undefined instead of throwing if something in the chain is missing.
35
What are closures?
Show answer
A function that remembers variables from its outer scope even after that scope has finished. They are used for private state and factory helpers.
36
What does the reportSlowTests option do?
Show answer
reportSlowTests makes Playwright list test files that took longer than a threshold at the end of the run. You set max, the number of files to show, and threshold in milliseconds, for example { max: 5, threshold: 60000 }. It is a cheap way to find files worth splitting, because one slow file can hold up a worker or a whole shard.
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
What happens if you forget an await?
Show answer
The action runs without waiting, so the next step may run first — causing flaky failures or 'Target closed' errors. The @typescript-eslint/no-floating-promises rule catches it.
39
How do you test a page in dark mode or with reduced motion?
Show answer
Set colorScheme: 'dark' or reducedMotion: 'reduce' in the context options or test.use. You can also switch during a test with page.emulateMedia({ colorScheme: 'dark' }). Then assert the right styles or take a screenshot comparison. Reduced motion also helps stability, because many apps skip animations when that preference is set.
40
What are soft assertions?
Show answer
await expect.soft(locator).toHaveText('...') records the failure but lets the test continue, so you see every mismatch in one run.
Fintech companies (19)
Fintech
Intuit
Playwright Testing interview questions
Bengaluru
View questionsFintech
CRED
Playwright Testing interview questions
Bengaluru
View questionsFintech
Paytm
Playwright Testing interview questions
Noida, Bengaluru, Mumbai
View questionsFintech
PhonePe
Playwright Testing interview questions
Bengaluru, Pune
View questionsFintech
Razorpay
Playwright Testing interview questions
Bengaluru, Mumbai
View questionsFintech
PayPal
Playwright Testing interview questions
Chennai, Bengaluru, Hyderabad
View questionsFintech
Stripe
Playwright Testing interview questions
Bengaluru
View questionsFintech
Visa
Playwright Testing interview questions
Bengaluru, Mumbai
View questionsFintech
Mastercard
Playwright Testing interview questions
Pune, Vadodara, Gurugram +1
View questionsFintech
Bloomberg
Playwright Testing interview questions
Mumbai
View questionsFintech
DE Shaw
Playwright Testing interview questions
Hyderabad, Bengaluru, Gurugram
View questionsFintech
Tower Research Capital
Playwright Testing interview questions
Gurugram
View questionsFintech
Groww
Playwright Testing interview questions
Bengaluru
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Zerodha
Playwright Testing interview questions
Bengaluru
View questionsFintech
Policybazaar
Playwright Testing interview questions
Gurugram
View questionsFintech
Juspay
Playwright Testing interview questions
Bengaluru
View questionsFintech
Cashfree Payments
Playwright Testing interview questions
Bengaluru
View questionsFintech
Pine Labs
Playwright Testing interview questions
Noida, Bengaluru
View questionsFintech
Bajaj Finserv
Playwright Testing interview questions
Pune
View questionsFrequently asked questions
How are Playwright Testing interviews at fintech companies different?
Fintech companies care about correctness, security and scale because they move money. Interviews add domain questions on payments, risk, reconciliation and compliance to the usual technical rounds, and often include practical tasks.
Which fintech companies are covered?
This page links to 19 fintech companies, including Intuit, CRED, Paytm, PhonePe, Razorpay, PayPal, Stripe, Visa. Each has its own page with rounds and a separate practice set.
What rounds should I expect?
Common rounds at these companies include: HR round; Hiring manager round; Online coding assessment; Technical round 1 (DSA); Online assessment or assignment. The exact process varies by company and role.
Other company types
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