public RomanNumeralCalculator(
     ConvertToSingles convertToSingles,
     ConvertToRomanNumerals convertToRomanNumerals)
 {
     _convertToSingles       = convertToSingles;
     _convertToRomanNumerals = convertToRomanNumerals;
 }
        public void ConvertSinglesToRomanNumerals(string input, string expected)
        {
            var convertToRomanNumerals = new ConvertToRomanNumerals();
            var converted = convertToRomanNumerals.ConvertFromSingles(input);

            Assert.That(converted, Is.EqualTo(expected));
        }
        public void ConvertMultipleIToRomanNumerals(int repeatOfI, string expected)
        {
            var converted = new ConvertToRomanNumerals().ConvertFromSingles(repeatOfI);

            Assert.That(converted, Is.EqualTo(expected));
        }