private int GetResultOfCalculationInArabicFormat(string reversePolishSignature)
{
var stack = new Stack <string>();
var resultOfCurrentOperation = 0;
var listElementsOfExpression = _parser.InitializeListOfElements(reversePolishSignature);
foreach (var elementOfExpression in listElementsOfExpression)
{
if (!ParserArithmeticExpression.IsSignOfOperation(elementOfExpression))
{
stack.Push(elementOfExpression);
}
else
{
resultOfCurrentOperation = CalculateCurrentOperation(stack, elementOfExpression, resultOfCurrentOperation);
stack.Push(resultOfCurrentOperation.ToString()); //Need invariant culture
}
}
return(int.Parse(stack.Pop()));
}
public void ConvertRomanNumberToArabic_CorrectValue()
{
if (!IsInitializedDictionary)
InitializeDictionary();
var parser = new ParserArithmeticExpression();
foreach (var romanNumber in dictionaryOfArabicAndRomanNumbers.Values)
{
var arabicNumber = dictionaryOfArabicAndRomanNumbers.FirstOrDefault(x => x.Value == romanNumber).Key; ;
var expectedArabicNumber = arabicNumber;
var actualArabicNumberAfterConverting = parser.ConvertRomanNumberToArabic(romanNumber);
Assert.AreEqual(expectedArabicNumber, actualArabicNumberAfterConverting);
}
}
public void RomanCalculatorUnitTest_CorrectnessConvertingRomanNumbersToArabic()
{
if (!IsInitializedDictionary)
InitializeDictionary();
var parser = new ParserArithmeticExpression();
foreach (var arabicNumber in dictionaryOfArabicAndRomanNumbers.Keys)
{
var romanNumber = dictionaryOfArabicAndRomanNumbers[arabicNumber];
var expectedArabicNumber = arabicNumber;
var actualArabicNumberAfterConverting = parser.ConvertRomanNumberToArabic(romanNumber);
Assert.AreEqual(expectedArabicNumber, actualArabicNumberAfterConverting);
}
}
public void ConvertInputStringToReversePolishSignature_CorrectValue()
{
var parser = new ParserArithmeticExpression();
const string inputArithmeticExpression = "(VII*IX)*(IX+(LVII*I))";
//Your constant expectedReversePolishSignature scares me
const string expectedReversePolishSignature = "$VII$$IX$*$IX$$LVII$$I$*+*";
var actualReversePolishSignature = parser.ConvertInputStringToReversePolishSignature(inputArithmeticExpression);
Assert.AreEqual(expectedReversePolishSignature, actualReversePolishSignature);
}
