public double parseProtocol(string line)
{
double firstValue = double.MaxValue;
double secondValue = double.MaxValue;
double result = double.MaxValue;
string[] values = line.Split(':');
if (values.Length != 3)
{
throw new Exception("No such a protocol exists");
}
try
{
firstValue = Convert.ToDouble(values[1]);
secondValue = Convert.ToDouble(values[2]);
}
catch (Exception)
{
throw new ArgumentException("Wrong arguments!!");
}
switch (values[0])
{
case "+":
result = instance.Add(firstValue, secondValue);
break;
case "-":
result = instance.Sub(firstValue, secondValue);
break;
case "/":
result = instance.Div(firstValue, secondValue);
break;
case "*":
result = instance.Mult(firstValue, secondValue);
break;
default:
throw new ArgumentException("No such an operation");
}
return(result);
}
public void DivTest()
{
Assert.AreEqual(1, _mathService.Div(1, 1));
Assert.AreEqual(0, _mathService.Div(1, 2));
Assert.AreEqual(1, _mathService.Div(2, 2));
}