01
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.
Qualcomm Playwright Testing Interview Questions & Answers
Curated interview practice questions with answers. These are practice scenarios, not a verified list of past interview questions.
About Qualcomm hiring for Playwright Testing roles
Qualcomm designs semiconductors and wireless technologies, including Snapdragon processors, modems and connectivity chips for smartphones, PCs, automotive and IoT. Its India centres in Hyderabad and Bengaluru are major engineering sites for software, hardware and testing. It hires for embedded software engineers, test engineers, hardware engineers and data roles.
For Playwright Testing roles, this Qualcomm practice set focuses most on API Testing (7), Playwright Core (6), JavaScript and TypeScript (6), Network Mocking (4). It has 3 easy, 28 medium, 9 hard questions, so you can start easy and work up to the harder ones.
- Company type
- Hardware & semiconductors
- Headquarters
- San Diego, California, USA
- Main India offices
- Hyderabad, Bengaluru, Chennai
Qualcomm Playwright Testing interview process
- Online assessment (aptitude + technical + coding)
- Technical round 1
- Technical round 2
- Managerial round
- HR round
Typical pattern based on public candidate experiences. Rounds vary by role, team and year.
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02
What are Partial, Pick, Omit and Record used for?
Show answer
They are built-in utility types. Partial<User> makes all fields optional, handy for override objects in test data builders. Pick<User, 'id' | 'email'> keeps chosen fields, and Omit<User, 'password'> removes some. Record<Role, string> maps every key of a union to a value type, for example storing a credentials file path per role.
03
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.
04
How do you verify that an API returns consistent data across two versions of an endpoint?
Show answer
Call both versions, for example /v1/orders/42 and /v2/orders/42, with the same test data. Map the fields that should match, since names may differ, and compare them with toEqual. Also assert that fields removed in v2 are really absent and new ones have correct types. Running this during a migration catches breaking changes before clients switch.
05
In what order do hooks and fixtures run?
Show answer
Worker fixtures and beforeAll run first for the worker. For each test, the test fixtures it needs are set up, then beforeEach hooks run, then the test body. Afterwards afterEach hooks run, then test fixtures are torn down in reverse order. afterAll and worker fixture teardown run when the worker finishes. Fixtures are lazy, so unused ones never run.
06
How do you mock third-party APIs in UI tests?
Show answer
Use page.route to intercept the call and fulfil it with fixed JSON so tests do not depend on external systems.
07
How do you capture browser console messages and page errors?
Show answer
Listen with page.on('console', msg => ...) for console.log, warnings and errors, and page.on('pageerror', err => ...) for uncaught exceptions. Collect them in an array and attach them to the report on failure. Traces also show console output. Uncaught page errors often explain why a button did nothing or a page stayed blank.
08
Retries make the build green, but nobody notices flaky tests. How do you surface them?
Show answer
Playwright already marks tests that passed on retry as flaky in the HTML and JSON reports. Read the JSON report in a small script after each run, post flaky test names to the team channel, and fail the build if the flaky count crosses a threshold. Over time you can track trends per test and per area.
09
How do you test pagination or chained API calls?
Show answer
Read the next page link or IDs from earlier responses, loop until done and assert counts and uniqueness; pass IDs between calls in the same test.
10
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.
11
How do you test file upload via API?
Show answer
Use request.post with multipart: { file: { name, mimeType, buffer } } and assert the response and stored file details.
12
How do you verify a page's URL and title after navigation?
Show answer
await page.getByRole('link', { name: 'Orders' }).click();
await expect(page).toHaveURL(/\/orders$/);
await expect(page).toHaveTitle('My Orders | Shop');
// both retry, so no need to wait for navigation manually
13
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.
14
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.
15
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.
16
What is the difference between await expect(locator) and a plain expect on a value?
Show answer
await expect(locator).toHaveText('Paid') is a web-first assertion: it retries until the element matches or the timeout ends. expect(value).toBe('Paid') is a generic assertion that checks a value once, immediately. Use web-first assertions for anything on the page and generic ones for plain data such as an API JSON field you already have.
17
How do you take visual snapshots of each component state in component tests?
Show answer
Mount the component once per state, for example default, disabled, loading and error, and call await expect(component).toHaveScreenshot() for each. Since only the component is on the page, images are small, stable and fast to review. Run them in the same Docker image as CI. This often replaces many full-page visual tests that break for unrelated reasons.
18
What are the risks of relying on an experimental testing feature in a large codebase?
Show answer
APIs may change between minor versions, so upgrades can break many tests at once, and documentation or community examples are thinner. To reduce risk, pin versions, wrap mount setup in shared helpers, keep stories simple and read release notes before upgrading. Also keep the end-to-end suite healthy so you are not dependent on one tool for all UI confidence.
19
How do you manage test data and environments?
Show answer
Use environment variables or .env files, a baseURL in config, API calls for setup and cleanup, and unique data per run.
20
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.
21
Describe a time strict TypeScript types caught a bug in your test code.
Show answer
Situation: our API helpers returned loosely typed objects and tests often read fields that no longer existed. Task: make helpers safer. Action: I added response interfaces, turned on strict mode and replaced any with unknown plus type guards. Result: the compiler immediately showed eleven tests reading a renamed field, which had been passing because they compared undefined with undefined. We fixed them before the next release.
22
How do you mock network requests?
Show answer
page.route('**/api/items', route => route.fulfill({ json: [...] })) intercepts and replies with test data; route.abort() simulates failures.
23
How do you select an option from a native select dropdown?
Show answer
const country = page.getByLabel('Country');
await country.selectOption('India'); // by value or label
await country.selectOption({ label: 'India' });
await expect(country).toHaveValue('IN');
// multi-select: selectOption(['a', 'b'])
24
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.
25
What is a fixture option and how do you define one?
Show answer
An option is a fixture whose value is configured rather than computed, declared with { option: true } and a default, for example defaultUser: ['standard', { option: true }]. Projects or test.use can override it, so one suite can run as admin in one project and as a viewer in another. Other fixtures can read the option to decide what to set up.
26
How do you handle dialogs such as alerts?
Show answer
Register page.on('dialog', d => d.accept()) before the action triggers the dialog.
27
What does force: true do on an action, and why should you avoid it?
Show answer
force: true skips the actionability checks, so Playwright clicks even if the element is hidden, disabled or covered. It can make a test pass while a real user would be blocked. Use it only for special cases like a custom checkbox whose real input is visually hidden by design. Otherwise fix the cause, such as an overlay.
28
Promise.all vs Promise.allSettled vs Promise.race?
Show answer
all waits for every promise and rejects on the first failure; allSettled waits for all and reports each outcome; race settles with the first one to finish.
29
How do you fail a test if the page logs any console error?
Show answer
test('no console errors', async ({ page }) => {
const errors: string[] = [];
page.on('console', m => { if (m.type() === 'error') errors.push(m.text()); });
page.on('pageerror', e => errors.push(e.message));
await page.goto('/dashboard');
expect(errors).toEqual([]);
});
30
How do you test an async job API that returns 202 and finishes later?
Show answer
Start the job and assert the 202 status and the returned job id. Then poll the status endpoint with expect.poll, with sensible intervals and a timeout, until it reports completed. Finally fetch the result and validate it. Also test the failure path, for example invalid input leading to a failed status with a clear error message.
31
How do you validate JSON schema?
Show answer
Use a library such as zod or ajv to define the expected schema and parse the response to fail on missing or wrongly typed fields.
32
Visual tests pass on developers' laptops but fail in CI with tiny font differences. Why, and how do you fix it?
Show answer
Font rendering, anti-aliasing and installed fonts differ between Windows, macOS and Linux, so the same page produces slightly different pixels. The fix is to generate and compare baselines in one fixed environment, usually the official Playwright Docker image used in CI. Developers update baselines by running that container locally or through a CI job, not from their own machines. Loosening thresholds should be the last resort.
33
How do you keep API tests independent of environment data?
Show answer
Do not depend on records that happen to exist in a shared environment. Each test or fixture creates what it needs through the API and cleans up after. Read environment-specific values such as base URL and credentials from config. For reference data that must exist, seed it in a setup project and verify it before tests run.
34
What can automated accessibility tools not catch?
Show answer
Scanners like axe find rule-based problems such as missing labels, bad contrast or invalid ARIA, which is roughly a third to a half of real issues. They cannot judge whether alt text is meaningful, whether focus order makes sense, whether error messages are understandable, or whether a screen reader user can actually finish the task. So automated scans are combined with keyboard tests and periodic manual checks with screen readers.
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
How do you handle shadow DOM?
Show answer
Playwright locators pierce open shadow roots by default, so getByRole and CSS locators work without special handling.
37
How do you check that a product list on the page is sorted by price?
Show answer
const texts = await page.getByTestId('price').allTextContents();
const prices = texts.map(t => Number(t.replace(/[^0-9.]/g, '')));
const sorted = [...prices].sort((a, b) => a - b);
expect(prices).toEqual(sorted);
// wait for the list first with toHaveCount
38
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.
39
A test passes locally but fails in CI with a timeout on a click. How do you use the trace?
Show answer
Open the CI trace and go to the failed click. Check the action log, which shows what Playwright waited for, such as the element not being visible or another element intercepting pointer events. Compare before and after snapshots and the network tab for slow or failed calls. Common causes are a slower environment, a cookie banner or different screen size.
40
A locator matches three Delete buttons and the test fails with a strict mode violation. How do you fix it?
Show answer
First scope the locator to the item you mean, for example the row that contains the user's name: page.getByRole('row', { name: 'Ravi Kumar' }).getByRole('button', { name: 'Delete' }). Do not reach for first() or nth() as a quick fix, because the order can change and the test may delete the wrong record. Scoping by meaningful context is stable and readable.
Tips to crack the Qualcomm Playwright Testing interview
- Revise C programming, pointers, operating systems and computer architecture for embedded software roles.
- Learn basics of wireless communication like 4G and 5G, and what a system-on-chip does.
- Read about Snapdragon platforms and Qualcomm's work in automotive and AI PCs.
- 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; Qualcomm interviewers usually ask follow-ups on your first answer.
Frequently asked questions
How many rounds are there in the Qualcomm Playwright Testing interview?
Candidates usually go through 5 stages: Online assessment (aptitude + technical + coding); Technical round 1; Technical round 2; Managerial round; 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 Qualcomm Playwright Testing interview?
This practice set leans on API Testing (7), Playwright Core (6), JavaScript and TypeScript (6), Network Mocking (4). Revise those first, then practise explaining one or two of your own projects end to end, because most Qualcomm interviewers ask you to walk through real work.
Are these the exact questions asked at Qualcomm?
No. These are curated practice questions that match the skills and difficulty usually tested in hardware & semiconductors interviews like Qualcomm's. They are not a leaked or verified list of past questions.
Where does Qualcomm hire Playwright Testing professionals in India?
Qualcomm has large teams in Hyderabad, Bengaluru, Chennai. Openings and locations change often, so check the Qualcomm careers page and filter by city and experience.
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