avrunit

A unit testing framework for AVR software development.

Feature

1. A minimalist test framework i.e SLOC < 120 including USART support
2. Test result could be stored in EEPROM (default) or sent to host using USART.
3. Tested with GCC and CMake with avr-toolchain.cmake

Getting Started

Simple Usage

1. Include a header file avrunit.h in the test unit source code
2. Declare AU_OUTPUT_SETUP() and redefine AU_OUTPUT() to redirect results to different output interface i.e. USART.
3. Define AU_SERIAL macro (i.e. -DAU_SERIAL) to enable unittest result dump through USART

Usage with cmake

1. Include the following files
   • cmake/avr-toolchain.cmake
   • cmake/avrunit.cmake
   • scripts/avrunit-result.py
2. Build, configure and upload. See avrunit own unit test.

Assertion Summary

avrunit provides elementary assert test to reduce binary footprint size. The assert test available are

AU_ASSERT(condition)

Evaluates whether condition is TRUE

AU_IGNORED(condition)

Ignore the unit test. Useful if you want to exclude the unit test result.

AU_BROKEN(condition)

Mark the unit test as broken.

Unit test for avrunit

Unit testing for avrunit.h using CMake is included in tests folder. Run the test as follows:

cmake -S . -B build
cmake --build build
cmake --build build --target test