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Playwright Testing Online Assessment Questions & Answers

40 questions for the online assessment stage — 13 easy, 27 medium.

About the online assessment round

Most companies start with an online test: aptitude and reasoning, a few MCQs on core Playwright Testing concepts, and one or two short hands-on tasks. It filters a large number of applicants, so speed and accuracy both count.

Tips for the online assessment round

  • Practise under a timer: about one minute per MCQ and 15-20 minutes per hands-on task.
  • Read every option before answering; tests often include two nearly correct choices.
  • Use a stable internet connection, keep your camera on and avoid switching tabs in proctored tests.
  • Attempt the questions you are sure about first, then return to the harder ones.
Solved — online assessmentStart practicing
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01

What is forbidOnly and why use it in CI?

Framework Design and CI/CDEasy
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test.only runs only that test and is handy locally, but if committed by mistake, CI would run one test and report success. forbidOnly: !!process.env.CI makes the run fail when any test.only is present on CI. It is a cheap safety net that most generated configs already include, and it should stay on.
02

What happens before and after await use() in a fixture?

Fixtures and HooksMedium
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Code before await use(value) is setup and runs before the test. use hands the value to the test and waits while the test runs. Code after it is teardown and runs when the test finishes, even if it failed. This keeps setup and cleanup for one resource in one place, which is cleaner than a separate beforeEach and afterEach pair.
03

What are Partial, Pick, Omit and Record used for?

JavaScript and TypeScriptMedium
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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.
04

What can automated accessibility tools not catch?

Visual & Accessibility TestingMedium
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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.
05

How do you filter a list of locators by text or by a child element?

Locators and AssertionsMedium
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// 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
06

How do you run one group of tests serially while the rest of the suite runs in parallel?

Parallel Runs, Sharding & ReportingMedium
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Put the group in its own project with fullyParallel: false and limit it to one worker, which recent versions allow with a workers setting on the project, or run it in a separate CI step with --project=serial --workers=1. Inside a file, test.describe.configure({ mode: 'serial' }) keeps order. Use project dependencies if the group must run after the parallel tests.
07

How can you view a trace file without a local Playwright install?

Debugging and Trace ViewerEasy
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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.
08

How do you test API error scenarios?

API TestingMedium
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Send invalid payloads or missing auth and assert 400, 401 or 404 codes and the error message bodies.
09

How do you publish the Playwright HTML report from a CI pipeline?

Framework Design and CI/CDMedium
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Keep the html reporter in the config. After the test step, add an upload-artifact step that runs even when tests fail, using a condition like always(), and upload the playwright-report folder with a retention period. Team members download and open it with npx playwright show-report. Some teams also publish it to static hosting for direct links.
10

Write a component test that checks a required field shows an error on blur.

Component TestingMedium
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test('shows error when email is left empty', async ({ mount }) => { const component = await mount(<EmailField required />); const input = component.getByLabel('Email'); await input.focus(); await input.blur(); await expect(component.getByText('Email is required')).toBeVisible(); await expect(input).toHaveAttribute('aria-invalid', 'true'); });
11

What are generics in TypeScript?

JavaScript and TypeScriptMedium
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Placeholders for types that make reusable code type-safe, for example a helper function returning the same type of item that it receives.
12

Write a test that deletes a record and confirms it is gone.

API TestingMedium
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test('delete product', async ({ request }) => { const created = await request.post('/api/products', { data: { name: 'Temp' } }); const { id } = await created.json(); const del = await request.delete(`/api/products/${id}`); expect(del.status()).toBe(204); const get = await request.get(`/api/products/${id}`); expect(get.status()).toBe(404); });
13

How do you handle errors in async code?

JavaScript and TypeScriptEasy
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Use try-catch with await, or .catch() on promises, and make sure rejected promises are never left unhandled.
14

CI runners have 2 CPU cores and workers is set to 8. Tests start timing out randomly. Why?

Parallel Runs, Sharding & ReportingMedium
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Eight browsers compete for two cores and limited memory, so pages render slowly, actions hit timeouts and the app under test may also be overloaded. More workers than cores rarely helps. Set workers to match the runner, such as 2, and scale out with shards on more machines instead. Watch CPU and memory metrics in CI to confirm.
15

What are test.skip, test.fixme and test.fail?

Fixtures and HooksEasy
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test.skip skips a test, optionally with a condition such as browserName === 'webkit'. test.fixme marks a test as broken and does not run it, so it is visible in reports as work to do. test.fail marks a test as expected to fail and reports an error if it unexpectedly passes, which is useful while a known bug is open.
16

How do you mock third-party APIs in UI tests?

Network MockingMedium
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Use page.route to intercept the call and fulfil it with fixed JSON so tests do not depend on external systems.
17

What is the difference between map, filter and reduce?

JavaScript and TypeScriptMedium
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map transforms each item, filter keeps items that match a condition, and reduce combines all items into a single value.
18

How do you open a trace file?

Debugging and Trace ViewerEasy
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Download trace.zip from the test results or CI artifact. Run npx playwright show-trace path/to/trace.zip to open it locally, or drag the file into trace.playwright.dev, which processes it in the browser without uploading it. In the HTML report, failed tests with a trace show a trace link you can click directly.
19

How do you tag and filter tests?

Framework Design and CI/CDMedium
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Add tags in the title (@smoke) or use the tag option, and run with --grep @smoke or --grep-invert.
20

What is APIRequestContext?

API TestingMedium
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The object behind the request fixture that holds base URL, headers and cookies, and can share cookies with a browser context.
21

How do you handle date pickers and custom dropdowns?

Locators and AssertionsMedium
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Click to open the control, then use getByRole('option') or a text locator for the target item, instead of relying on fragile index-based selectors.
22

How does URL matching work in page.route?

Network MockingMedium
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The first argument can be a glob string, a regular expression or a function that receives a URL object. Globs like '**/api/users*' are simple but * does not cross slashes and ** does. Regex gives precise control over query strings. A predicate function suits complex rules, for example matching host plus a specific search parameter.
23

How is toBeVisible different from toBeAttached?

Locators and AssertionsEasy
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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.
24

How do you test a site protected by HTTP basic authentication?

Playwright CoreEasy
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Set httpCredentials with a username and password in the use block of the config, or pass it to browser.newContext. Playwright then answers the browser's authentication challenge automatically, so no pop-up appears. Read the values from environment variables rather than hard-coding them. You can also limit the credentials to a specific origin with the origin field.
25

How do you test pagination or chained API calls?

API TestingMedium
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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.
26

What does npx playwright test --last-failed do?

Debugging and Trace ViewerEasy
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It reruns only the tests that failed in the previous run, using the results stored in the test-results folder. It saves time while you fix failures locally because you do not rerun the whole suite. Combine it with --headed or --debug to investigate. Run the full suite again before pushing to confirm nothing else broke.
27

How do you handle secrets such as passwords and tokens in CI?

Framework Design and CI/CDMedium
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Store them in the CI system's secret store and pass them as environment variables, never in the repository or config files. Read them through process.env and fail fast if they are missing. Use dedicated test accounts with limited rights. Avoid printing them in logs, and make sure traces and screenshots do not expose them in reports.
28

Write a custom fixture that gives a logged-in page.

Fixtures and HooksMedium
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import { test as base } from '@playwright/test'; export const test = base.extend({ loggedInPage: async ({ page }, use) => { await page.goto('/login'); await page.getByLabel('Email').fill('qa@test.in'); await page.getByLabel('Password').fill('Pass@123'); await page.getByRole('button', { name: 'Sign in' }).click(); await use(page); }, });
29

What does fullyParallel change?

Framework Design and CI/CDMedium
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By default Playwright runs test files in parallel but tests within one file in order in a single worker. fullyParallel: true lets tests inside a file run in parallel across workers too. It speeds up suites with big files, but every test must be independent. You can also enable it per file with test.describe.configure({ mode: 'parallel' }).
30

How do you override options like baseURL or viewport for one file?

Fixtures and HooksEasy
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Call test.use at the top of the file or inside a describe block, for example test.use({ viewport: { width: 375, height: 812 }, locale: 'hi-IN' }). The options apply only to tests in that scope. Options you can set this way include baseURL, storageState, colorScheme and extraHTTPHeaders. Global defaults stay in the use block of playwright.config.
31

Why are component tests usually faster than end-to-end tests?

Component TestingEasy
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They skip the expensive parts: no full app start, no backend calls, no login and no navigation through several pages. Playwright builds the component bundle once and each test simply mounts into an already loaded page. A typical component test finishes in well under a second, so hundreds can run in a pull request check, while end-to-end flows take several seconds each.
32

How do you block images and fonts to speed up tests?

Network MockingEasy
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await page.route(/\.(png|jpe?g|webp|woff2?)$/, route => route.abort()); // or by resource type await page.route('**/*', route => route.request().resourceType() === 'image' ? route.abort() : route.continue() );
33

What is UI mode and how is it different from --debug?

Debugging and Trace ViewerMedium
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UI mode, opened with npx playwright test --ui, is a dashboard to run, filter and watch tests, with a trace-like timeline for each one and a watch mode that reruns on file changes. --debug opens the Inspector to step through a single run live. Use UI mode for daily development and --debug for stepping through a specific action.
34

How do you open an HTML report downloaded from a CI artifact?

Parallel Runs, Sharding & ReportingEasy
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Unzip the artifact and run npx playwright show-report followed by the folder path, for example npx playwright show-report ./playwright-report. This starts a small local server, which is needed because traces load through it. Opening index.html directly from disk often fails to show traces. You can also upload a single trace zip to the online trace viewer.
35

How do you manage test data and environments?

Framework Design and CI/CDMedium
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Use environment variables or .env files, a baseURL in config, API calls for setup and cleanup, and unique data per run.
36

What are fixtures and how do you create a custom one?

Fixtures and HooksMedium
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Fixtures set up and tear down test dependencies. Extend with test.extend({ loggedInPage: async ({ page }, use) => { ...; await use(page); } }).
37

Why should you start waitForResponse before the action that triggers it?

Network MockingMedium
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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.
38

Write a test that compares only the pricing card instead of the full page.

Visual & Accessibility TestingEasy
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test('pricing card looks right', async ({ page }) => { await page.goto('/pricing'); const card = page.getByRole('region', { name: 'Pro plan' }); // screenshot is clipped to the element await expect(card).toHaveScreenshot('pro-plan.png'); });
39

Why should the Playwright Docker image version match your package version?

Framework Design and CI/CDMedium
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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.
40

How do you test geolocation, permissions and time zones?

Playwright CoreMedium
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Set them in the context options (geolocation, permissions, timezoneId, locale) to simulate users from other regions.

Frequently asked questions

What happens in the Playwright Testing online assessment round?

Most companies start with an online test: aptitude and reasoning, a few MCQs on core Playwright Testing concepts, and one or two short hands-on tasks. It filters a large number of applicants, so speed and accuracy both count.

How do I clear the online assessment round?

Practise under a timer: about one minute per MCQ and 15-20 minutes per hands-on task. Read every option before answering; tests often include two nearly correct choices. Use a stable internet connection, keep your camera on and avoid switching tabs in proctored tests.

Which round comes next?

A typical order is online assessment, telephonic screening, one or two technical rounds, a managerial round and HR. Use the other round pages to practise each stage.

Practise every interview round

Telephonic Interview questionsTechnical Round questionsManagerial Round questionsRapid-Fire questionsHR & behavioural questionsFull mock interview

More ways to practise

Company-wise Playwright Testing questionsPackage-wise Playwright Testing questionsExperience-wise Playwright Testing questionsRole-wise Playwright Testing questionsCity-wise Playwright Testing questionsMost asked Playwright Testing questionsScenario-based questionsPractical / hands-on questionsHR & behavioural questionsPlaywright Testing mock interviewOnline assessment questionsTechnical round questionsManagerial round questionsPlaywright Testing topic sheets