public void WhenPlayersFromDifferentGroupsPlay()
{
var player1 = new Player("1");
var player2 = new Player("2");
var player3 = new Player("3");
var player4 = new Player("4");
var player5 = new Player("5");
var player6 = new Player("6");
var player7 = new Player("7");
var player8 = new Player("8");
var player9 = new Player("9");
var matches =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player2, player3),
new MatchResult(player4, player5),
new MatchResult(player5, player6),
new MatchResult(player6, player7),
new MatchResult(player8, player9),
new MatchResult(player4, player2),
new MatchResult(player8, player6)
};
var actual = RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id).ToList();
IEnumerable <string> actual1 = actual.ToArray();
Assert.Equal(new[] { "1", "4", "2", "3", "5", "8", "6", "7", "9" }, actual1);
}
public void LooserShouldBeMoveDownByOne()
{
var player1 = new Player("1");
var player2 = new Player("2");
var player3 = new Player("3");
var player4 = new Player("4");
var player5 = new Player("5");
//Ranking 1,2,3,4,5
var matches =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player2, player3),
new MatchResult(player3, player4),
new MatchResult(player4, player5),
new MatchResult(player5, player1), //This match has no effect
new MatchResult(player3, player1)
};
var actual = RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id).ToList();
IEnumerable <string> actual1 = actual.ToArray();
Assert.Equal(new[] { "3", "1", "2", "4", "5" }, actual1);
}
public void MatchesOnlyAffectRankingWhenLooserIsRankedBetterThanWinnerByMax2()
{
var player1 = new Player("1");
var player2 = new Player("2");
var player3 = new Player("3");
var player4 = new Player("4");
var player5 = new Player("5");
//Ranking 1,2,3,4,5
var matches =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player2, player3),
new MatchResult(player3, player4),
new MatchResult(player4, player5),
new MatchResult(player5, player1) //This match has no effect
};
var actual = RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id).ToList();
IEnumerable <string> actual1 = actual.ToArray();
Assert.Equal(new[] { "1", "2", "3", "4", "5" }, actual1);
}
public void PerfTest_Rank20000Matches()
{
var players = new List <Player>();
for (var i = 0; i < 30; i++)
{
players.Add(new Player(i.ToString()));
}
var matches = new List <MatchResult>();
for (var i = 0; i < 28; i++)
{
matches.Add(new MatchResult(players[i], players[i + 1]));
}
matches.Add(new MatchResult(players[0], players[29]));
var random = new Random();
for (var i = 0; i < 20000; i++)
{
matches.Add(new MatchResult(players[random.Next(0, 15)], players[new Random().Next(16, 29)]));
}
var actual = RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id).ToList();
Assert.Equal(30, actual.Count);
}
public void PlayersShouldBeRankedByResultsWhenPlayersAreDuplicated()
{
var matches =
new[]
{
new MatchResult(new Player("1"), new Player("2")),
new MatchResult(new Player("1"), new Player("3")),
new MatchResult(new Player("1"), new Player("2")),
new MatchResult(new Player("3"), new Player("2"))
};
Assert.Equal(new[] { "1", "3", "2" }, (IEnumerable <string>)
RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id));
}
public void WhenRankingTwoGamesBeatsOne()
{
var player1 = new Player("1");
var player2 = new Player("2");
var matches =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player1, player2),
new MatchResult(player2, player1)
};
var actual = RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id).ToList();
IEnumerable <string> actual1 = actual.ToArray();
Assert.Equal(new[] { "1", "2" }, actual1);
}
public void PlayersShouldBeRankedByResults()
{
var player1 = new Player("1");
var player2 = new Player("2");
var player3 = new Player("3");
var matches =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player1, player3),
new MatchResult(player1, player2),
new MatchResult(player3, player2)
};
Assert.Equal(new[] { "1", "3", "2" }, (IEnumerable <string>)
RankingAlgorithm.GetPlayersByRanking(matches).Select(p => p.Id));
}
public void RankPlayers2()
{
var player1 = new Player("1");
var player2 = new Player("2");
var player3 = new Player("3");
var matches =
new[]
{
new Match(player1.Id, player2.Id),
new Match(player1.Id, player3.Id),
new Match(player1.Id, player2.Id),
new Match(player3.Id, player2.Id)
};
var matches2 =
new[]
{
new MatchResult(player1, player2),
new MatchResult(player1, player3),
new MatchResult(player1, player2),
new MatchResult(player3, player2)
};
var playersByRanking2 = RankingAlgorithm.GetPlayersByRanking(matches2);
Assert.Equal(new[] { "1", "3", "2" },
playersByRanking2.Select(p => p.Id));
var playersByRanking = RankingAlgorithm.GetPlayersByRanking(
matches.Select(m => new MatchResult(new Player(m.Winner), new Player(m.Looser), m.TimeStamp)));
Assert.Equal(new[] { "1", "3", "2" },
playersByRanking.Select(p => p.Id));
Assert.Equal(new[] { "1", "3", "2" },
playersByRanking
.Select(p => new RankedPlayer(p.Id, p.Ranking)).OrderBy(p => p.Rank).Select(p => p.Id));
}
public static IOrderedEnumerable <RankedPlayer> RankPlayers(IEnumerable <Match> matches)
{
return(RankingAlgorithm.GetPlayersByRanking(
matches.Select(m => new MatchResult(new Player(m.Winner), new Player(m.Looser), m.TimeStamp)))
.Select(p => new RankedPlayer(p.Id, p.Ranking)).OrderBy(p => p.Rank));
}
