The Rust on ESP Book

AlexeyBrin 15 points 1 comment July 25, 2026
docs.espressif.com · View on Hacker News

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iconara

The [page on testing][1] suggests this: > Where possible, and where it makes sense, you should try to test as much as possible on your host machine, not on the target device. When I have tried this I have encountered multiple problems, first that the Rust test framework requires std, making it convoluted writing test code – but when working around that using conditional compilation, I run into other things like the `esp-hal` depending on crates that won't compile on the host. What is the recommended way to test on the host? [1]: https://docs.espressif.com/projects/rust/book/application-development/testing.html

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