Testing Native Modules Reliably With JavaScript

Presented
React Native London
Speaker
Michał Pierzchala
Principal Engineer
@
Callstack

Testing native modules in React Native can be challenging; mocking often hides real-world behavior, while full E2E test requires extra boilerplate and heavy tools. In this talk, Michał will make you familiar with React Native Harness. It offers a new middle ground: running tests directly on the simulator or device with full access to native modules, all while keeping a familiar Jest-style workflow. All in your favorite JavaScript.

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