To continue my series on Mocking Katas (see Mocking Kata – Instrument Processor for the last Kata), I’ll show you a very simple Kata that I normally use in my Test Driven Development training courses to introduce mocks (created manually or dynamically with the use of a mocking framework): the CharacterCopier.
We use Coding Katas in Coding Dojos to improve our programming skills. This includes skills in software design, refactoring, Test Driven Development, Mocking, tool usage and a lot of other tiny stuff.
However, I found only a few Katas, especially Katas including the need for mocks (see for example http://codingkata.org/). Most Katas are very algorithmic, which is good for learning TDD. But its bad for learning how to use mocks.
Therefore, I started to invent my own Mocking Katas. I use these in my training courses on Test Driven Development.