How can I unit test Arduino code?

Question

I\'d like to be able to unit test my Arduino code. Ideally, I would be able to run any tests without having to upload the code to the Arduino. What tools or libraries can he

Answer 1

simavr is an AVR simulator using avr-gcc.

It already supports a few ATTiny and ATMega microcontrollers, and - according to the author - it's easy to add some more.

In the examples lies simduino, an Arduino emulator. It supports running the Arduino bootloader and can be programmed with avrdude through Socat (a modified Netcat).