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Harness isn't a simple tool - it's a bunch of components working together to give the best DX for testing JS code with native modules. Maintaining all that as a solo dev isn't easy, so I tried offloading some work by using Jest's CLI to run Harness… and it worked!

Szymon Chmal

@chmal.it

Expect it to be included in the next Harness release! With it, I can leverage Jest's infrastructure, such as built-in reporters, and potentially support running the same test suite in parallel across multiple devices. Huge thanks to @thymikee.bsky.social for pitching the idea at React Conf!

17/10/25, 7:32 pm0 reposts0 likes

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