public void Return_7_Given_13_DUP_4_POP_5_DUP_Plus_DUP_Plus_Minus()
{
// Arrange
var machine = new WordMachine();
var expression = "13 DUP 4 POP 5 DUP + DUP + -";
// Act
var actual = machine.Solution(expression);
// Assert
Assert.Equal(7, actual);
}
public void Return_Negative_1_Given_Empty_Expression()
{
// Arrange
var machine = new WordMachine();
var expression = "";
// Act
var actual = machine.Solution(expression);
// Assert
Assert.Equal(-1, actual);
}
public void Return_Negative_1_Given_5_5_Minus_Pop()
{
// Arrange
var machine = new WordMachine();
var expression = "5 5 - POP";
// Act
var actual = machine.Solution(expression);
// Assert
Assert.Equal(-1, actual);
}
