public void DoesEquationHaveModulusSign()
{
var calc = new Parse();
var op = calc.GetOperator("20%5");
var expected = '%'; ;
Assert.AreEqual(expected, calc.GetOperator("%"));
}
public void DoesEquationHaveDivisionSign()
{
var calc = new Parse();
var op = calc.GetOperator("20/5");
var expected = '/'; ;
Assert.AreEqual(expected, calc.GetOperator("/"));
}
public void DoesEquationHaveaddintionSign()
{
var calc = new Parse();
var op = calc.GetOperator("20+5");
var expected = '+'; ;
Assert.AreEqual(expected, calc.GetOperator("+"));
}
//Evaluate
public string Calculuate(string input)
{
/* if (input.Contains("="))
{
Parse.ExtractCharacter();
// string letter = "a";
//return letter;
}
*/
if (input == "lastq")
{
if (Stack.lastQuestion == null)
{
return "No Operation entered";
}
return Stack.lastQuestion;
}
else if (input == "last")
{
if (Stack.lastQuestion == null)
{
return "No Operation entered";
}
return Stack.last;
}
else
{
Parse parse = new Parse();
var operans = parse.GetNumbers(input);
var op = parse.GetOperator(input);
var result = 0;
switch (op)
{
case '+':
result = Addition.AddNum(operans);
break;
case '-':
result = Subtraction.SubNum(operans);
break;
case '*':
result = Multiplication.MultiplyNum(operans);
break;
case '/':
result = Division.DivideNum(operans);
break;
case '%':
result = Modulus.ModNum(operans);
break;
default:
throw new ArgumentException("incorrect format");
}
Stack.last = result.ToString();
Stack.lastQuestion = input;
return result.ToString();
}
}
public void DoesEquationHaveMultiplicationSign()
{
var calc = new Parse();
var op = calc.GetOperator("20*5");
var expected = '*'; ;
Assert.AreEqual(expected, calc.GetOperator("*"));
}
public void ShouldGetOperators()
{
var calc = new Parse();
var op = calc.GetOperator("12-8");
var expected = '-';
Assert.AreEqual(expected, op);
}
public void DoesEquationHaveSubtractionSign()
{
var calc = new Parse();
var op = calc.GetOperator("20-5");
var expected = '-'; ;
Assert.AreEqual(expected, calc.GetOperator("-"));
}
public void DoesEquationHaveOperators()
{
var calc = new Parse();
var op = calc.GetOperator("20+5");
var expected = '+';
Assert.AreEqual(expected, op);
}
