public void ConstructorTest()
{
RPNCalculatorEngine engine = new RPNCalculatorEngine();
Assert.IsNotNull(engine);
Assert.IsInstanceOfType(engine, typeof(RPNCalculatorEngine));
}
public void Process_Complex_Test()
{
RPNCalculatorEngine r = new RPNCalculatorEngine();
Assert.AreEqual("8", r.Process("1 3 + 2 X"));
Assert.AreEqual("5", r.Process("1 3 2 + X"));
Assert.AreEqual("-5", r.Process("1 2 3 4 + - X"));
}
public void Process_Error_Test()
{
RPNCalculatorEngine r = new RPNCalculatorEngine();
Assert.AreEqual("E", r.Process("1"));
Assert.AreEqual("E", r.Process("1 +"));
Assert.AreEqual("E", r.Process("1 + 1"));
Assert.AreEqual("E", r.Process("1 1 1 +"));
Assert.AreEqual("E", r.Process("+"));
Assert.AreEqual("E", r.Process("+ 1"));
Assert.AreEqual("E", r.Process("+ 1 1"));
Assert.AreEqual("E", r.Process("1 1 1 + + +"));
}
public void Process_Basic_Test()
{
RPNCalculatorEngine r = new RPNCalculatorEngine();
Assert.AreEqual("2", r.Process("1 1 +"));
Assert.AreEqual("1", r.Process("3 2 -"));
Assert.AreEqual("6", r.Process("3 2 X"));
Assert.AreEqual("2", r.Process("4 2 ÷"));
Assert.AreEqual("0", r.Process("1 -1 +"));
Assert.AreEqual("5", r.Process("3 -2 -"));
Assert.AreEqual("-1", r.Process("2 3 -"));
Assert.AreEqual("-6", r.Process("3 -2 X"));
Assert.AreEqual("-2", r.Process("-4 2 ÷"));
}
public static void Main()
{
rpnCalcEngine = new RPNCalculatorEngine();
buttons = new Dictionary <char, int>();
RPNCalculatorEngine.Operation operation;
int i = 0;
bool errorDisplayed = false;
while ((operation = rpnCalcEngine.GetOperation(i)) != null)
{
buttons.Add(operation.ShortCut, i++);
}
DisplayButtons();
do
{
DrawCalculator();
int button;
char keyChar = Console.ReadKey(true).KeyChar;
if (keyChar == '\x1b')
{
break; // exit the loop if Escape key pressed
}
if (buttons.TryGetValue(keyChar, out button))
{
try
{
if (errorDisplayed)
{
Console.SetCursorPosition(0, 0);
WriteErrorLine(" ");
WriteErrorLine(" ");
DisplayButtons();
errorDisplayed = false;
}
rpnCalcEngine.PressKey(button);
}
catch (FormatException)
{
WriteErrorLine("Invalid number format");
errorDisplayed = true;
}
catch (Exception e)
{
WriteErrorLine(e.Message);
errorDisplayed = true;
}
}
} while (true);
}
public void Initialize()
{
engine = new RPNCalculatorEngine();
}
public void EmptyArgumentTest()
{
RPNCalculatorEngine engine = new RPNCalculatorEngine();
}
