Test Driven Development is the core of the technical Agile practices. With TDD, programmers get instant feedback that their code does what they intend. This class shows the motivations and mechanics of TDD, but does not stop there. Attendees get first hand experience at TDD, writing well tested code in the challenging world of C++. Attendees see how TDD helps to prevent many bugs and memory leaks from ever making the bug list. CppUTest, an open source test harness, is used to collect, organize and automate C++ unit tests.