private void Button_Start_Race_Click(object sender, RoutedEventArgs e)
{
try
{
if (!this.HorseRaceConfiguration.IsRaceConfigured())
{
return;
}
var winnerCreator = new RaceWinnerCreator(this.HorseRaceConfiguration);
var winner = winnerCreator.GetRaceWinner();
if (winner == null)
{
return;
}
string caption = "WE HAVE A WINNER!!!!";
MessageBoxButton button = MessageBoxButton.OK;
MessageBoxImage icon = MessageBoxImage.Information;
MessageBox.Show(owner: this, messageBoxText: "THE WINNER IS :" + winner.RunnerName, caption: caption, button: button,
icon: icon, defaultResult: new MessageBoxResult(), options: MessageBoxOptions.RightAlign);
}
catch (Exception ex)
{
Logger.Log(message: ex.Message, stacktrace: ex.StackTrace);
}
}
public void GetRaceWinner_WinningRate_IsValid()
{
int numberOfPlays = 1000000;
var maxMargin = 136.1;
IRaceConfiguration RaceConfiguration = new HorseRaceConfiguration();
var creator = new RaceWinnerCreator(RaceConfiguration);
Dictionary <string, int> winsCounter = new Dictionary <string, int>();
RaceConfiguration.AddRunner("A", "1/2");
winsCounter.Add("A", 0);
RaceConfiguration.AddRunner("B", "2/1");
winsCounter.Add("B", 0);
RaceConfiguration.AddRunner("C", "3/1");
winsCounter.Add("C", 0);
RaceConfiguration.AddRunner("D", "8/1");
winsCounter.Add("D", 0);
RaceConfiguration.GetMaxWinningMargin();
for (int i = 0; i < numberOfPlays; i++)
{
var winner = creator.GetRaceWinner();
winsCounter[winner.RunnerName] += 1;
}
foreach (var runner in RaceConfiguration.GetRunners())
{
var winRateForGivenRunner = ((100 / runner.FractionalValue) / maxMargin);
var expectedWins = (int)(winRateForGivenRunner * numberOfPlays);
var IsTheWinningRateValid = winsCounter[runner.RunnerName] < expectedWins + 0.02 * expectedWins &&
winsCounter[runner.RunnerName] > expectedWins - 0.02 * expectedWins;
Assert.IsTrue(IsTheWinningRateValid);
}
}
