public void Should_Pass_When_ExcpectedResultsReturnedFor_ExpectationToWin()
{
//The two scores are the same, so it's 50/50 chance
double result = CalculateRating.ExpectationToWin(100, 100);
Assert.AreEqual(0.5, result);
}
public void Should_Pass_When_ExcpectedResultsReturnedFor_Calculate()
{
// Same score entered, Score difference should be 16
var expected = CalculateRating.CalculateScoreDifference(100, 100);
Assert.AreEqual(expected, 16);
}
/// <summary>
/// Receive the winner and the loser Ids. Calculate the score and update it in each of them
/// </summary>
/// <param name="idWinner"></param>
/// <param name="idLoser"></param>
/// <returns>HttpStatusCode Ok</returns>
public ActionResult UpdateScore(string idWinner, string idLoser)
{
log.Info(String.Format("In : UpdateScore : idWinner = {0} ; idLoser={1}", idWinner, idLoser));
try
{
var winnerCat = CatComparerService.GetCat(idWinner);
var loserCat = CatComparerService.GetCat(idLoser);
var scoresDifferance = CalculateRating.CalculateScoreDifference(winnerCat.Score, loserCat.Score);
winnerCat.Score += scoresDifferance;
loserCat.Score -= scoresDifferance;
CatComparerService.UpdateScoreOfCat(winnerCat);
CatComparerService.UpdateScoreOfCat(loserCat);
}
catch (Exception ex)
{
log.Error("Exception : UpdateScore : {0}", ex);
return(new HttpStatusCodeResult(HttpStatusCode.InternalServerError, String.Format("Unable to Update Score : {0}", ex.Message)));
}
finally
{
log.Info("Out : UpdateScore");
}
return(new HttpStatusCodeResult(HttpStatusCode.OK));
}
