FizzBuzz Kata

Goal: Convert integers into a string with specific rules

Rules:

• Values divisible by 3 are converted to "Fizz"
• Values divisible by 5 are converted to "Buzz"
• Values divisible by 3 and 5 are converted to "FizzBuzz"
• All other values are converted to their string representations

Test cases:

1 -> "1"
2 -> "2"
3 -> "Fizz"
4 -> "4"
5 -> "Buzz"
6 -> "Fizz"
7 -> "7"
8 -> "8"
9 -> "Fizz"
10 -> "Buzz"
11 -> "11"
12 -> "Fizz"
13 -> "13"
14 -> "14"
15 -> "FizzBuzz"

Extension 1 - FizzBuzzBang

Rules:

• The same rules as for FizzBuzz, but with the following additions:
• Values divisible by 7 are converted to "Bang"
• Values divisible by 3 and 7 are converted to "FizzBang"
• Values divisible by 5 and 7 are converted to "BuzzBang"
• Values divisible by 3, 5 and 7 are converted to "FizzBuzzBang"
• All other values are converted to their string representations

Test cases:

1 -> "1"
2 -> "2"
3 -> "Fizz"
4 -> "4"
5 -> "Buzz"
6 -> "Fizz"
7 -> "Bang"
8 -> "8"
9 -> "Fizz"
10 -> "Buzz"
11 -> "11"
12 -> "Fizz"
13 -> "13"
14 -> "Bang"
15 -> "FizzBuzz"
21 -> "FizzBang"
35 -> "BuzzBang"
105 -> "FizzBuzzBang"

Extension 2 - Changing rules

Rules:

• The same rules as for FizzBuzz but with the following additions:
• Values which contain the digit 3 are also converted to "Fizz"
• Values which contain the digit 5 are also converted to "Buzz"
• Values which contain the digits 3 and 5 are also converted to "FizzBuzz"
• All other values are converted to their string representations

Test cases:

1 -> "1"
2 -> "2"
3 -> "Fizz"
4 -> "4"
5 -> "Buzz"
6 -> "Fizz"
7 -> "7"
8 -> "8"
9 -> "Fizz"
10 -> "Buzz"
11 -> "11"
12 -> "Fizz"
13 -> "Fizz"
14 -> "7"
15 -> "FizzBuzz"
31 -> "Fizz"
52 -> "Buzz"
53 -> "FizzBuzz"

Special feature of completed Kata solution:

• not a single if statement
• flexible createable Rule sets via Abstract Factory pattern

This version is written in C# with Xamarin Studio (should be able to open in Visual Studio too) with Mono.

The version without LINQ is located in the branch "nolinq"