public int EvaluateInput(string input, Constant constant)
{
Parse parse = new Parse();
Add add_input = new Add();
Subtract subtract_input = new Subtract();
Multiply multiply_input = new Multiply();
Divide divide_input = new Divide();
Modulo modulo_input = new Modulo();
if (parse.OperatorInput(input) == '+')
{
return add_input.AddConstants(input, constant);
}
if (parse.OperatorInput(input) == '-')
{
return subtract_input.SubtractConstants(input, constant);
}
if (parse.OperatorInput(input) == '*')
{
return multiply_input.MultiplyConstants(input, constant);
}
if (parse.OperatorInput(input) == '/')
{
return divide_input.DivideConstants(input, constant);
}
if (parse.OperatorInput(input) == '%')
{
return modulo_input.ModuloConstants(input, constant);
}
throw new FormatException();
}
public void MultiplyWorksWithConstants()
{
string mock_input = "a * 2";
Parser parse = new Parser();
char toBeKey = char.Parse(parse.GetFirst(mock_input));
int toBeKeyValue = int.Parse(parse.GetSecond(mock_input));
Constant constant = new Constant();
constant.AddConstant(toBeKey, 1);
Multiply items = new Multiply();
Assert.AreEqual(2, items.MultiplyConstants(mock_input, constant));
}