TestMu AI Author

Sushobhit Dua is an Engineering Manager at TestMu AI (formerly LambdaTest), leading SmartUI, the visual regression and visual testing product. He manages the team that builds and ships SmartUI and maintains and cuts releases of the open-source SmartUI CLI. He works primarily in Core Java, Spring Boot, and Gradle, and is an AMCAT Certified Software Engineer. He brings over 10 years of software engineering experience, with earlier work as a Software Engineer at ecare Technology Labs. Sushobhit owns the SmartUI roadmap and the engineering decisions behind it.

Published Articles: 1

Articles by Author

Nested Tests in JUnit 5: @Nested with Examples

Software Testing

Nested Tests in JUnit 5: @Nested with Examples

JUnit 5's @Nested annotation groups related test methods, such as login and registration checks, into non-static inner classes for cleaner test code.

September 24, 2026

Monkey testing: A Comprehensive Guide With Best Practices

Software Testing

Monkey testing: A Comprehensive Guide With Best Practices

Monkey testing ensures app stability by using random inputs and unpredictable actions to uncover hidden crashes, performance issues, and vulnerabilities.

September 23, 2026

How to Perform Snapshot Testing to Detect UI Changes

Software Testing

How to Perform Snapshot Testing to Detect UI Changes

Learn how to set up and run snapshot testing with Jest in React to detect UI changes, prevent regressions, and maintain consistent, reliable components.

September 24, 2026

The 6 Core Principles of Scrum Explained

Automation

The 6 Core Principles of Scrum Explained

Learn the six core principles of Scrum, from self-managing teams and empirical process control to timeboxing, and how each one shapes sprint delivery.

September 17, 2026

How to Verify AI-Written UI Changes Across Viewports

Automation

How to Verify AI-Written UI Changes Across Viewports

We ran 10 AI-written UI components across 6 viewports on real Chrome and Edge. All 10 passed every desktop check and all 10 failed on mobile. Here is the data.

August 31, 2026

Video Quality Testing: From VMAF Scores to Playback QoE

Software Testing

Video Quality Testing: From VMAF Scores to Playback QoE

Video quality testing explained: how reference scores like VMAF differ from delivery metrics, where the two disagree, and what to measure on real devices.

August 18, 2026