mirror of
https://github.com/furyfire/trueskill.git
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77 lines
3.3 KiB
PHP
77 lines
3.3 KiB
PHP
<?php
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require_once(dirname(__FILE__) . "/../../PHPSkills/GameInfo.php");
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require_once(dirname(__FILE__) . "/../../PHPSkills/Player.php");
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require_once(dirname(__FILE__) . "/../../PHPSkills/Team.php");
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require_once(dirname(__FILE__) . "/../../PHPSkills/Teams.php");
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require_once(dirname(__FILE__) . "/../../PHPSkills/SkillCalculator.php");
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use Moserware\Skills\GameInfo;
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use Moserware\Skills\Player;
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use Moserware\Skills\Team;
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use Moserware\Skills\Teams;
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use Moserware\Skills\SkillCalculator;
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class TrueSkillCalculatorTests
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{
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const ERROR_TOLERANCE_TRUESKILL = 0.085;
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const ERROR_TOLERANCE_MATCH_QUALITY = 0.0005;
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// These are the roll-up ones
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public static function testAllTwoPlayerScenarios($testClass, SkillCalculator $calculator)
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{
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self::twoPlayerTestNotDrawn($testClass, $calculator);
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//self::twoPlayerTestDrawn($testClass, $calculator);
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//self::oneOnOneMassiveUpsetDrawTest($testClass, $calculator);
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//self::twoPlayerChessTestNotDrawn($testClass, $calculator);
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}
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//------------------- Actual Tests ---------------------------
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// If you see more than 3 digits of precision in the decimal point, then the expected values calculated from
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// F# RalfH's implementation with the same input. It didn't support teams, so team values all came from the
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// online calculator at http://atom.research.microsoft.com/trueskill/rankcalculator.aspx
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//
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// All match quality expected values came from the online calculator
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// In both cases, there may be some discrepancy after the first decimal point. I think this is due to my implementation
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// using slightly higher precision in GaussianDistribution.
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//------------------------------------------------------------------------------
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// Two Player Tests
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//------------------------------------------------------------------------------
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private static function twoPlayerTestNotDrawn($testClass, SkillCalculator $calculator)
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{
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$player1 = new Player(1);
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$player2 = new Player(2);
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$gameInfo = new GameInfo();
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$team1 = new Team($player1, $gameInfo->getDefaultRating());
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$team2 = new Team($player2, $gameInfo->getDefaultRating());;
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$teams = Teams::concat($team1, $team2);
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$newRatings = $calculator->calculateNewRatings($gameInfo, $teams, array(1, 2));
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$player1NewRating = $newRatings->getRating($player1);
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self::assertRating($testClass, 29.39583201999924, 7.171475587326186, $player1NewRating);
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$player2NewRating = $newRatings->getRating($player2);
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self::assertRating($testClass, 20.60416798000076, 7.171475587326186, $player2NewRating);
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self::assertMatchQuality($testClass, 0.447, $calculator->calculateMatchQuality($gameInfo, $teams));
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}
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private static function assertRating($testClass, $expectedMean, $expectedStandardDeviation, $actual)
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{
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$testClass->assertEquals($expectedMean, $actual->getMean(), '', self::ERROR_TOLERANCE_TRUESKILL);
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$testClass->assertEquals($expectedStandardDeviation, $actual->getStandardDeviation(), '', self::ERROR_TOLERANCE_TRUESKILL);
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}
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private static function assertMatchQuality($testClass, $expectedMatchQuality, $actualMatchQuality)
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{
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$testClass->assertEquals($expectedMatchQuality, $actualMatchQuality, '', self::ERROR_TOLERANCE_MATCH_QUALITY);
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}
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}
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?>
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