RNG.cpp include of <Arduino.h> makes native builds for unit testing and debugging fail

[attermann]

RNG.cpp include and makes use of Arduino millis() and micros() functions.

It's evident from code in the repo that this issue was circumvented for this project by emulating Arduino (.../host/emulation/Arduino.h), but it's not clear how this emulation can be included by external projects.

I'm using PlatformIO specifically. Any advice for how to include the emulation for a native host build?

Thanks!

[jp-bennett]

You may be interested in platform-native. https://docs.platformio.org/en/latest/platforms/native.html It's been a long time since a stable release, but the code itself is still under development at https://github.com/meshtastic/platform-native

[Adrian-Samoticha]

You may be interested in platform-native. https://docs.platformio.org/en/latest/platforms/native.html It's been a long time since a stable release, but the code itself is still under development at https://github.com/meshtastic/platform-native

Unless I’m misunderstanding something, PlatformIO’s platform-native functionality is exactly what @attermann is using for unit testing purposes, and the inclusion of Arduino.h makes it impossible to compile this library on native environments.

I‘ve run into the same issue and am currently looking for a solution.

[Adrian-Samoticha]

I couldn’t really find a good solution to this other than replacing the #include<Arduino.h> line in the RNG.cpp file with:

#ifndef NATIVE
#include <Arduino.h>
#else
uint32_t millis() { return 0; }

uint32_t micros() { return 0; }
#endif

EDIT: Make sure to add the -D NATIVE build flag to your native environment in your platformio.ini file:

build_flags =
    -D NATIVE