Selenium Coding Interview Questions

Expect hands-on tasks such as writing a script to handle multiple browser windows, switching between frames, working with alerts, or uploading and downloading files. You may also be asked about integrating Selenium with build tools or CI/CD pipelines, or about differences between commands like type (which sets a field value directly) and typeKeys (which simulates keypresses).

Your ability to write robust, maintainable WebDriver code: reliable locators, synchronization without sleeps, clean page abstractions, handling tricky DOM cases (iframes, shadow DOM), parallel runs, and actionable reporting.

Thread.sleep, brittle XPaths, mixing waits, sharing a single WebDriver instance across threads, not cleaning up drivers, ignoring artifacts, and asserting on unstable UI details.

Usually a short brief on the app under test, a timed live-coding task in a shared IDE or web sandbox, and a debrief about your choices, trade-offs, and how you’d scale/maintain the suite.

Typically a small demo app (login, search, cart, table) or a public site section. The goal is to see how you navigate unknown UIs, choose stable locators, and make sensible assertions—not to reverse-engineer a complex product.

Yes. An interviewer may act as a product owner (answering requirements) or as a teammate (brainstorming test data, edge cases). Narrate your thinking and invite feedback.

They watch how you respond. Acknowledge the symptom, form a quick hypothesis, apply a minimal, principled fix, and move on. Don’t paper over issues with blind waits or excessive retries.

Expect stories about stabilizing flaky suites, collaborating with developers to add test IDs, improving build times, or driving quality gates. Use STAR and quantify impact (fail rate ↓, run time ↓).