Top WebdriverIO Interview Questions: Beginner, Intermediate & Advanced!

About The Video

In this video, 𝐈𝐨𝐚𝐧𝐧𝐢𝐬 𝐏𝐚𝐩𝐚𝐝𝐚𝐤𝐢𝐬, Head of QA at Snappi, will walk you through beginner, intermediate, and advanced WebdriverIO interview questions with real-world examples and practical tips.

You’ll learn how to:

✅ Answer common beginner-level questions on setup, waits, and browser commands.

✅ Tackle intermediate questions on parallel execution, session handling, and Shadow DOM.

✅ Respond to advanced questions on Single Page Applications (SPAs), multiple windows, scaling tests, and debugging in CI/CD.

💡𝐈𝐧 𝐭𝐡𝐢𝐬 𝐯𝐢𝐝𝐞𝐨, 𝐲𝐨𝐮’𝐥𝐥 𝐥𝐞𝐚𝐫𝐧:

𝐁𝐞𝐠𝐢𝐧𝐧𝐞𝐫 𝐋𝐞𝐯𝐞𝐥 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬:

What is WebdriverIO? How do you set up WebdriverIO for automation? What types of waits are available in WebdriverIO? How do you handle browser pop-ups in WebdriverIO? What browser commands are used in WebdriverIO?

𝐈𝐧𝐭𝐞𝐫𝐦𝐞𝐝𝐢𝐚𝐭𝐞 𝐋𝐞𝐯𝐞𝐥 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬:

How do you run WebDriverIO tests in parallel? What’s the issue with browser.pause() in WebDriverIO? How do you manage session data between WebDriverIO tests? How do you automate shadow DOM elements in WebDriverIO? How do you create custom commands in WebDriverIO?

𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐋𝐞𝐯𝐞𝐥 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬:

How would you test single-page applications (SPA) in WebDriverIO? How do you handle multiple browser windows in WebDriverIO? How do you configure wdio.conf.js for large projects? What strategies would you use to manage large-scale WebDriverIO tests? How do you debug WebDriverIO tests in a CI/CD pipeline?

Video Chapters

00:00 Introduction

02:28 - Beginner Level Questions

11:15 - Intermediate Level Questions

25:29 - Advanced Level Questions

Key Topics Covered

This video is designed to prepare viewers for Web Automation and WebdriverIO interview questions by covering a wide spectrum of topics ranging from beginner to advanced. It starts with an introduction by the speaker, Ioannis Papadakis, who shares their background in QA leadership, community engagement, and LambdaTest’s role as a GenAI-powered cross-browser testing platform.

The beginner section covers fundamentals of WebdriverIO, including what it is, how it works with Selenium and CDP, and steps to set up a project from scratch using npm, CLI, and configuration wizards. It also explores types of waits (implicit, explicit, custom), their importance, and why explicit waits are recommended for efficiency and stability.

The intermediate section focuses on more practical challenges such as handling browser pop-ups (alerts, authentication dialogs, and custom modals), using browser commands like URL navigation and execute scripts, running tests in parallel with maxInstances, and highlighting the drawbacks of static waits (pause) that can lead to flaky tests.

It also explains session management between tests using cookies and environment variables, strategies for working with Shadow DOM elements via predefined APIs or custom scripts, and how to create custom browser or element-level commands in WebdriverIO.

In the advanced section, the video dives into testing strategies for single-page applications (SPAs), highlighting the need for dynamic waits, reusable components, and page object models. It then covers managing multiple browser windows, configuring WebdriverIO for large projects by splitting config files and using environment variables, and strategies for scaling test suites, including modular architecture, tagging, CI/CD integration, observability practices, and leveraging platforms like LambdaTest or Selenium Grid.

The session closes with best practices for debugging tests, such as enabling detailed logging, using screenshots and videos, integrating with observability tools, and fostering a monitoring culture to improve CI/CD troubleshooting.

Overall, the video provides real-world examples, code snippets, and practical tips to help candidates confidently answer interview questions about automation frameworks, WebdriverIO setup, best practices, and advanced problem-solving in testing environments.