private int GetResultOfCalculationInArabicFormat(string reversePolishSignature)
{
var stack = new Stack <string>();
var resultOfCurrentOperation = 0;
var listElementsOfExpression = _arithmeticExpressionParser.InitializeListOfElements(reversePolishSignature);
foreach (var elementOfExpression in listElementsOfExpression)
{
if (!ArithmeticExpressionParser.IsSignOfOperation(elementOfExpression))
{
stack.Push(elementOfExpression);
}
else
{
resultOfCurrentOperation = CalculateCurrentOperation(stack, elementOfExpression, resultOfCurrentOperation);
stack.Push(resultOfCurrentOperation.ToString());
}
}
return(int.Parse(stack.Pop()));
}
public void ConvertRomanNumberToArabic_RomanNumberIsProperlyConvertedToArabicNotation()
{
if (!_isInitializedDictionary)
InitializeDictionary();
var parser = new ArithmeticExpressionParser();
foreach (var arabicNumber in _dictionaryOfArabicAndRomanNumbers.Keys)
{
var romanNumber = _dictionaryOfArabicAndRomanNumbers[arabicNumber];
var expectedArabicNumber = arabicNumber;
var actualArabicNumberAfterConverting = parser.ConverterOfNumbers.ConvertRomanNumberToArabic(romanNumber);
Assert.AreEqual(expectedArabicNumber, actualArabicNumberAfterConverting);
}
}
public void ConvertInputStringToReversePolishSignature_InputExpressionIsProperlyConvertedInReversePolishSignature()
{
var parser = new ArithmeticExpressionParser();
const string inputArithmeticExpression = "(VII*IX)*(IX+(LVII*I))";
const string expectedReversePolishSignature = "$VII$$IX$*$IX$$LVII$$I$*+*";
var actualReversePolishSignature = parser.ConvertInputStringToReversePolishSignature(inputArithmeticExpression);
Assert.AreEqual(expectedReversePolishSignature, actualReversePolishSignature);
}
public void ConvertArabicNumberToRoman_ArabicNumberIsProperlyConvertedToRomanNotation()
{
if (!_isInitializedDictionary)
InitializeDictionary();
var parser = new ArithmeticExpressionParser();
foreach (var romanNumber in _dictionaryOfArabicAndRomanNumbers.Values)
{
var arabicNumber = _dictionaryOfArabicAndRomanNumbers.FirstOrDefault(x => x.Value == romanNumber).Key;
var expectedRomanNumber = romanNumber;
var actualRomanNumberAfterConverting = parser.ConverterOfNumbers.ConvertArabicNumberToRoman(arabicNumber);
Assert.AreEqual(expectedRomanNumber, actualRomanNumberAfterConverting);
}
}