A unit testing framework for Arduino platforms inspired by ArduinoUnit and Google Test.
The unit tests run in the embedded controller, not in a simulator or emulator. It is almost a drop-in replacement of ArduinoUnit with some advantages. AUnit supports timeouts and test fixtures. It somtimes consume 50% less flash memory on the AVR platform, and it has been tested to work on the AVR, ESP8266, ESP32, Teensy and STM32 platforms. Unit tests can often be executed on a Linux or MacOS desktop class machine using EpoxyDuino. Tests can be incorporated into a continuous integration system like Jenkins (using AUniter) or GitHub Actions (using EpoxyDuino).

Author: Brian T. Park

Maintainer: Brian T. Park

Read the documentation


This library is compatible with all architectures so you should be able to use it on all the Arduino boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.