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Network Control for End-to-End Web Testing | Gleb Bahmutov | TestMu 2025

Network Control for End-to-End Web Testing | Gleb Bahmutov | TestMu 2025

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About the talk

In this TestMu 2025 session, ๐†๐ฅ๐ž๐› ๐๐š๐ก๐ฆ๐ฎ๐ญ๐จ๐ฏ, Sr. Director of Engineering at Mercari, shows how network control can improve end-to-end web testing.

He introduces the Cypress Magic Backend plugin to record, replay, and inspect API calls, making tests faster, more reliable, and easier to debug. Gleb also covers reducing flakiness, testing under real network conditions, and the role of open source sustainability in modern tooling.

Whether you are a tester, developer, or engineering leader, this session delivers practical strategies to boost test speed, stability, and debugging.

Key Takeaways:

Why network control matters in modern web applications

How to use the Cypress Magic Backend to record and replay API calls

Techniques for debugging with the inspect mode and the recorded call history

Reducing flakiness by handling network errors and slow responses

Testing user experience under latency, bandwidth, and packet loss

Open source sustainability and new licensing approaches

Testฮผ

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Testฮผ(TestMu) Conference is LambdaTestโ€™s annual flagship event, one of the worldโ€™s largest virtual software testing conferences dedicated to decoding the future of testing and development. Built by the community, for the community, itโ€™s a space where youโ€™re at the center, connecting, learning, and leading together. From deep-dive sessions on emerging trends in engineering, testing, and DevOps, to hands-on workshops and inspiring culture-driven talks, every experience is designed to keep you at the heart of the conversation.

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