Build Your Own Robot

Appendix D. Mocking the CRICKIT library

This appendix covers the topic of mocking the Adafruit Python CRICKIT library. Mocking is a common mechanism used when testing software. It lets us replace a piece of software with mock objects. In our case, there are a number of benefits to doing this:

• Running code without robot hardware—The mock library in this appendix will let us run all the code in the book without any robot hardware. This is useful, as it provides a deeper look at the computer vision, web, joystick, and networking portions of the code that don’t need robotic hardware.

• Executing the code without a Raspberry Pi—The code is written to run on many different Linux systems. All the code was tested with Ubuntu 22.04, which can be run ...