TDD Exercise

A programming kata performed using various forms of TDD

RomanToDecimal
Content:

Problem description
TDD approaches
Problem description
The Kata says you should write a function to convert from Roman Numerals to decimal numerals. In order to keep the kata light, we will not check for valid Roman Numeral.

Roman numerals, the numeral system of ancient Rome, uses combinations of letters from the Latin alphabet to signify values. They are based on seven symbols:

Symbol	Value
I	1
V	5
X	10
L	50
C	100
D	500
M	1000
Numbers are formed by combining symbols together and adding the values. Generally, symbols are placed in order of value, starting with the largest values. When smaller values precede larger values, the smaller values are subtracted from the larger values, and the result is added to the total.

Example:

Roman Number	Computation	Value	Comment
MMVI	1000 + 1000 + 5 + 1	2006	only addition
MCMXLIV	1000 + (1000 - 100) + (50 - 10) + (5 - 1)	1944	addition and substraction
TDD Approaches
Discussions about the approaches use to perform the individual katas can be found by navigating to their directory.