James Grenning (@jwgrenning) joined us to talk about Test Driven Development, dealing with legacy code, and cleaning out very large pipes.

James is the author of Test Driven Development for Embedded C. If you want to take his live online course, check out the remote delivered TDD classes on Wingman Software. His blog has many great articles including TDD How-to: Get Your Legacy C into a Test Harness and TDD Guided by ZOMBIES.

Book: Working Effectively with Legacy Code by Michael Feathers

James mentioned Given-When-Then, a testing design pattern (brief intro). Kent Beck also wrote about test && commit || revert style testing.

James and Bob Martin present IoT implementation strategies in a series of videos on Clean Coders. James mentioned working with a Synapse Wireless radio.