public int Add(string inputs)
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string[] delimiter = parser.Delimiters(inputs);
string[] allSeparators = delimiter.Concat(new[]{"\n"}).ToArray();
string[] strings = inputs.Split(allSeparators, StringSplitOptions.RemoveEmptyEntries);
int temp = 0;
int result = 0;
foreach (string number in strings)
{
if(Int32.TryParse(number, out temp))
{
bool stopProcessing = false;
foreach (ProcessValueAction numberStragey in _numberStrageies)
{
numberStragey(temp, ref result, ref stopProcessing);
if (stopProcessing)
break;
}
}
}
if(_invalidNumbers.Count > 0)
throw new ArgumentException("Invalid Numbers: " + String.Join(", ", _invalidNumbers.Select(x => x.ToString())));
return result;
}
public void ContainsDelimiterExpression_IsValid_ForMultipleDelimiters()
{
string multipleDelimiterProgram = "//[*][%]\n1*2%3";
CalculationExpressionParser parser = new CalculationExpressionParser();
bool result = parser.ContainsDelimiterExpression(multipleDelimiterProgram);
Assert.IsTrue(result);
}
public void InputInstructions_ValidForOneNumber()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string singleNumber = parser.InputInstructions("//;\n1");
Assert.AreEqual("1", singleNumber);
string multipleNumbers = parser.InputInstructions("//;\n1,2");
Assert.AreEqual("1,2", multipleNumbers);
}
public void Delimiters_HasMultipleCorrectDelimiters()
{
string multipleDelimiterProgram = "//[*][%]\n1*2%3";
CalculationExpressionParser parser = new CalculationExpressionParser();
string[] result = parser.Delimiters(multipleDelimiterProgram);
Assert.AreEqual(2, result.Length);
CollectionAssert.AreEqual(new[]{"*", "%"}, result);
}
public void Delimiters_IsValidFor_MultiCharacterDelimiters()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string calcProgram = "//[***]\n1***2***3";
string delimiter = parser.Delimiters(calcProgram)[0];
Assert.AreEqual("***", delimiter);
string instructions = parser.InputInstructions(calcProgram);
Assert.AreEqual("1***2***3", instructions);
}
public void ContainsDelimiterExpression_SingleCharacterDelimitersExpressions_Valid()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string[] singleCharacterDelimiterPrograms = {
"//;\n1;2",
"//,\n1,2"
};
foreach (string calcProgram in singleCharacterDelimiterPrograms)
{
bool positiveResult = parser.ContainsDelimiterExpression(calcProgram);
Assert.IsTrue(positiveResult);
}
}
public void InputInstructions_Valid_WithoutDelimiterExpression()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string multipleNumbersNoInstructions = parser.InputInstructions("2,1");
Assert.AreEqual("2,1", multipleNumbersNoInstructions);
}
public void Delimiters_DelimiterExpressionWithSingleCharacterIsValid()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
ValidateSingleCharacterDelimiterExpression(parser, ";", "//;\n1;2");
ValidateSingleCharacterDelimiterExpression(parser, ",", "//,\n1,2");
}
private static void ValidateSingleCharacterDelimiterExpression(CalculationExpressionParser parser, string expected, string calcProgram)
{
string[] delimiters = parser.Delimiters(calcProgram);
Assert.IsTrue(delimiters.Contains(expected));
}
public void ContainsDelimiterExpression_InvalidWithoutNewline()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
bool negativeResult = parser.ContainsDelimiterExpression("//;1;2");
Assert.IsFalse(negativeResult);
}
public void IsMultiDelimiter_Single_Delimiters_AreNot_Classified_As_Multiples()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string[] testCases = {
"[%]",
"[*]"
};
foreach (string invalidCase in testCases)
{
Assert.IsFalse(parser.IsMultiDelimiter(invalidCase));
}
}
public void IsMultiDelimiter_MatchesMultipleDelimiters()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string[] testCases = {
"[%][*]",
"[***][%%%]"
};
foreach (string validCase in testCases)
{
Assert.IsTrue(parser.IsMultiDelimiter(validCase));
}
}