public void FactorialTest()
{
math_pack cs = new math_pack();
try
{
cs.fce_fakt(-4);
Assert.Fail("No exception thrown for invalid argument (tried to calculate (-4)!)");
}
catch (ArgumentException ex)
{
Assert.AreEqual("Cannot calculate the factorial of a negative number", ex.Message);
}
Assert.AreEqual(1, cs.fce_fakt(0), 0, "0! != 1");
Assert.AreEqual(1, cs.fce_fakt(1), 0, "1! != 1");
Assert.AreEqual(2, cs.fce_fakt(2), 0, "2! != 2");
Assert.AreEqual(120, cs.fce_fakt(5), 0, "5! != 120");
Assert.AreEqual(3628800, cs.fce_fakt(10), 0, "10! != 3,628,800");
Assert.IsTrue(Double.IsInfinity(cs.fce_fakt(200)));
}
/**
* \brief Reakce na kliknutí na tlačítko
* \param sender Odesílatel funkce
* \param e Argumenty eventu
*/
private void ButtonClick(object sender, RoutedEventArgs e)
{
ROVNASE.Focus(); //aby na tlačítko 'ENTER' reagovalo '='
Button clickedButton = sender as Button; //které tlačítko vyvolalo proceduru
#if DEBUG
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("BUTTON:\t\t\tZmáčknuta tlačítko \"{0}\"", clickedButton.Name);
Console.ResetColor();
#endif
if (clickedButton == null)
{
return; //kontrola "kdyby náhodou"
}
if ((Keyboard.Modifiers == ModifierKeys.Control) && (clickedButton.Name == "minus"))
{
NumberNeg();
}
else
{
switch (clickedButton.Name)
{
#region ísla
case "jedna": //1
NumberOutput("1");
break;
case "dva": //2
NumberOutput("2");
break;
case "tri": //3
NumberOutput("3");
break;
case "ctr": //4
NumberOutput("4");
break;
case "pet": //5
NumberOutput("5");
break;
case "sest": //6
NumberOutput("6");
break;
case "sedm": //7
NumberOutput("7");
break;
case "osm": //8
NumberOutput("8");
break;
case "devet": //9
NumberOutput("9");
break;
case "nula": //0
NumberOutput("0");
break;
case "tecka": //.
if (!(string.IsNullOrEmpty(textOutput.Text)) && PointMode != true)
{
PointMode = true;
if (NumberMode == false)
{
textOutput.Text = "0,";
NumberMode = true;
}
else
{
textOutput.Text += ",";
}
}
break;
#endregion ísla
#region základní znamínka
case "plus":
SignInput("+");
InputShow(Example);
break;
case "minus":
SignInput("-");
InputShow(Example);
break;
case "krat":
SignInput("×");
InputShow(Example);
break;
case "deleno":
SignInput("÷");
InputShow(Example);
break;
#endregion základní znamínka
#region pokročilá znamínka
case "mocnina":
SignInput("^");
InputShow(Example);
break;
case "odmocnina":
SignInput("√");
InputShow(Example);
break;
case "faktorial":
//SignInput("!");
//InputShow(Example);
try
{
if (double.Parse(textOutput.Text) > 170)
{
throw new ArgumentOutOfRangeException();
}
textOutput.Text = M.fce_fakt(double.Parse(textOutput.Text)).ToString();
MadeFakt = true;
}
catch (Exception ex)
{
#if DEBUG
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Exception: {0}", ex.TargetSite.Name);
Console.ResetColor();
#endif
switch (ex.TargetSite.Name)
{
case "fce_fakt":
textOutput.Text = "NO NEG FAKT";
break;
default:
textOutput.Text = "FAKT ERROR";
break;
}
GotError = true;
PointMode = false;
ANSWER = "0";
NumberMode = false;
Example = string.Empty;
ExampleList.Clear();
textInput.Text = "0";
}
break;
#endregion pokročilá znamínka
#region pomocná tlačítka
case "zpet":
if (!(string.IsNullOrEmpty(textOutput.Text)) && textOutput.Text.Length > 1)
{
if (textOutput.Text[textOutput.Text.Length - 1] == '.')
{
PointMode = false;
}
textOutput.Text = textOutput.Text.Remove(textOutput.Text.Length - 1);
}
else
{
textOutput.Text = "0";
}
break;
case "clean":
textOutput.Text = "0";
PointMode = false;
break;
case "cleanall":
Example = string.Empty;
ExampleList.Clear();
textOutput.Text = "0";
textInput.Text = "0";
PointMode = false;
break;
case "switch":
ResultSwitch();
break;
#endregion pomocná tlačítka
#region konečná tlačítka
case "ANS":
textOutput.Text = ANSWER;
break;
case "ROVNASE":
Example += textOutput.Text;
ExampleList.Add(textOutput.Text);
InputShow(Example);
textOutput.Text = "0";
InputProcess(Example);
break;
#endregion konečná tlačítka
}
}
}