gist:4274296

import org.scalatest.FlatSpec

class RomanNumerals private(val number: Int) {

  private val keyNumbers = List(50, 10, 5, 1)
  private val pairs = Map(1 -> "I", 5 -> "V", 10 -> "X", 50 -> "L")

  def roman() = {
    val romanHolder = new StringBuilder
    var left = number