public void Erase_IntegerValue()
{
CalculationStack stack = new CalculationStack();
stack.Append(1);
stack.Append(2);
stack.Erase();
Assert.AreEqual(1, stack.Input.Value);
}
public void Erase_DoubleValue()
{
CalculationStack stack = new CalculationStack();
stack.Append(1);
stack.Append(2);
stack.Append(3);
stack.SetComma();
stack.Append(0);
stack.Append(5);
stack.Append(1);
stack.Erase();
Assert.AreEqual(123.05, stack.Input.Value);
}
public void Erase_TillZeroAndAppendAgain()
{
CalculationStack stack = new CalculationStack();
stack.Append(3);
stack.SetComma();
stack.Append(0);
stack.Append(4);
stack.Append(2);
stack.Append(1);
stack.Erase();
stack.Erase();
stack.Erase();
stack.Erase();
stack.Append(1);
stack.Append(4);
stack.Append(1);
stack.Append(5);
Assert.AreEqual(3.1415, stack.Input.Value);
}
public void Erase_ToZero()
{
CalculationStack stack = new CalculationStack();
stack.Append(1);
stack.Append(2);
stack.Append(2);
stack.Erase();
stack.Erase();
stack.Erase();
stack.Erase();
Assert.AreEqual(0, stack.Input.Value);
}
