The Passenger57 class. We will rework this design later. This class always places a bet on Black. Since this is simply used to test Game, it doesn't deserve a very sophisticated unit test of its own. It will be replaced in a future exercise.

The RouletteGame class.

A class which performs a demonstration of the Game class. This demo program creates the Wheel, the stub Passenger57 and the Table. It creates the Game object and cycles a few times. Note that the Wheel returns random results, making a formal test rather difficult. We'll address this testability issue in the next chapter.