public void TestAdd(double a, double b, double res)
{
IRPNCalculator c = new RPNCalculator();
c.Push(a);
c.Push(b);
c.Add();
Assert.True(c.Top() == res);
}
public void TestDivZero()
{
IRPNCalculator cal = new RPNCalculator();
Assert.True(cal.Size() == 0);
cal.Push(0);
cal.Push(5);
Assert.Throws <ArgumentException>(() => cal.Divide());
cal.Add();
Assert.True(cal.Size() == 1);
}
public void TestMoreMaths(double a, double b, double c, double res)
{
IRPNCalculator cal = new RPNCalculator();
Assert.True(cal.Size() == 0);
cal.Push(a);
cal.Push(b);
cal.Push(c);
Assert.True(cal.Size() == 3 && cal.Top() == 5);
cal.Add();
cal.Multiply();
Assert.True(cal.Top() == res && cal.Size() == 1);
}