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The Chain of Responsibility Pattern – Or how to over engineer FizzBuzz

What is FizzBuzz Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both

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Posted in Design Patterns, TDD

Using the command pattern to solve the Mars Rover Kata – Part 3

This is the third and final part to solve the Mars Rover kata. Part 1 and Part 2 to view what has been done previously. The Command Pattern The Command Pattern encapsulates a request as an object, thereby letting you

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Posted in Kata, Mars Rover, TDD

Using the State Pattern to solve the Mars Rover Kata – Part 1

If you have not come across this kata before, this is it: A Mars Rover has been developed to map out the landscape. It’s a small robot which can move on a grid, controlled by simple commands. In this example,

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Posted in Kata, Mars Rover, TDD

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