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The Test-Device Gap: React Native Bugs Tests Never Catch
테스트는 통과했는데 기기는 깬다: React Native의 런타임 함정
Why it matters
Green test suites and working web previews mask critical failures that only appear on real Android devices running Hermes. These bugs—caused by module evaluation order, Metro's static bundling limitations, and runtime assumptions—demonstrate why device testing remains essential despite high test coverage. Understanding how JavaScript modules evaluate and how bundlers work is critical for shipping stable React Native apps to production.
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React NativeHermesmodule evaluationMetroenvironment variablesdevice testing