public void Add_AddingValues_ValuesAdded()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Add();
Expect(calc.Pop(), Is.EqualTo(300));
}
public void Add_AddingWhereStackCountIsLessThanTwo_ThrowsException()
{
var calc = new StackCalculator();
calc.Push(100);
Exception e = Assert.Throws<ArgumentException> ( () => calc.Add() );
}