public void WhenToRomanNumeralIsInitializedToUseExpandedRomanNumeralsItReturnsARomanNumeral()
{
// The real numerals over 1000 are letters with bars over them. Since that isn't easy to
// re-create, I'm substituting alternate letters
Dictionary <long, char> expandedNumeralLookup = new Dictionary <long, char>()
{
{ 10000, 'A' },
{ 5000, 'B' },
{ 1000, 'M' },
{ 500, 'D' },
{ 100, 'C' },
{ 50, 'L' },
{ 10, 'X' },
{ 5, 'V' },
{ 1, 'I' }
};
ToRomanNumeral fourteenThousandTwoHundredSixtyFour = new ToRomanNumeral(14264, expandedNumeralLookup);
Assert.AreEqual("AMBCCLXIV", fourteenThousandTwoHundredSixtyFour.GenerateRomanNumeralRepresentation());
int overMaxNumeral = 40000;
Assert.ThrowsException <ArgumentOutOfRangeException>(() => overMaxNumeral.ToRomanNumeral());
}
public void WhenToRomanNumeralIsInitializedToUseAlternateRomanNumeralsItReturnsARomanNumeral()
{
Dictionary <long, char> alternateNumeralLookup = new Dictionary <long, char>()
{
{ 1000, 'G' },
{ 500, 'F' },
{ 100, 'E' },
{ 50, 'D' },
{ 10, 'C' },
{ 5, 'B' },
{ 1, 'A' }
};
ToRomanNumeral fourteen = new ToRomanNumeral(14, alternateNumeralLookup);
Assert.AreEqual("CAB", fourteen.GenerateRomanNumeralRepresentation());
ToRomanNumeral nineteenEightyNine = new ToRomanNumeral(1989, alternateNumeralLookup);
Assert.AreEqual("GEGDCCCAC", nineteenEightyNine.GenerateRomanNumeralRepresentation());
}
public static string ToRomanNumeral(this long baseTenNumber)
{
ToRomanNumeral romanNumeral = new ToRomanNumeral(baseTenNumber);
return(romanNumeral.GenerateRomanNumeralRepresentation());
}
