public void FideProvisionalEloCalculatorTests()
{
// verified against http://ratings.fide.com/calculator_rtd.phtml
var calc = new FideEloCalculator(new FideKFactor.Provisional());
EloAssert.AssertChessRating(calc, 1200, 1500, PairwiseComparison.Win, 1221.25, 1478.75);
EloAssert.AssertChessRating(calc, 1200, 1500, PairwiseComparison.Draw, 1208.75, 1491.25);
EloAssert.AssertChessRating(calc, 1200, 1500, PairwiseComparison.Lose, 1196.25, 1503.75);
}
public void FideNonProvisionalEloCalculatorTests()
{
// verified against http://ratings.fide.com/calculator_rtd.phtml
var calc = new FideEloCalculator();
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Win, 1207.5, 1192.5);
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Draw, 1200, 1200);
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Lose, 1192.5, 1207.5);
EloAssert.AssertChessRating(calc, 2600, 2500, PairwiseComparison.Win, 2603.6, 2496.4);
EloAssert.AssertChessRating(calc, 2600, 2500, PairwiseComparison.Draw, 2598.6, 2501.4);
EloAssert.AssertChessRating(calc, 2600, 2500, PairwiseComparison.Lose, 2593.6, 2506.4);
}
public void GaussianEloCalculatorTests()
{
const double defaultKFactor = 24.0;
var calc = new GaussianEloCalculator();
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Win, 1212, 1188);
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Draw, 1200, 1200);
EloAssert.AssertChessRating(calc, 1200, 1200, PairwiseComparison.Lose, 1188, 1212);
// verified using TrueSkill paper equation
EloAssert.AssertChessRating(calc, 1200, 1000, PairwiseComparison.Win, 1200 + ((1 - 0.76024993890652326884) * defaultKFactor), 1000 - (1 - 0.76024993890652326884) * defaultKFactor);
EloAssert.AssertChessRating(calc, 1200, 1000, PairwiseComparison.Draw, 1200 - (0.76024993890652326884 - 0.5) * defaultKFactor, 1000 + (0.76024993890652326884 - 0.5) * defaultKFactor);
EloAssert.AssertChessRating(calc, 1200, 1000, PairwiseComparison.Lose, 1200 - 0.76024993890652326884 * defaultKFactor, 1000 + 0.76024993890652326884 * defaultKFactor);
}