See how professional testing fits naturally into Godot. In this fast‑paced live demo, Mike Schulze (creator of GdUnit4) writes and runs tests for gameplay logic and scenes, showcasing fluent assertions, scene runners, and tight editor integration - so you can iterate faster with confidence. You’ll learn practical patterns for keeping projects shippable: structuring test suites, isolating dependencies, and wiring tests into CI to catch regressions early. Walk away with a clear checklist to bring robust, maintainable testing to your next Godot game. Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://pretalx.godotfest.com/godotfest-25/talk/FZLLYC/