/**
* @dataProvider getWinProbabilityData
*/
public function testGetWinProbability($ratingA, $ratingB, $expectedProbabilityA, $expectedProbabilityB)
{
$participantA = new Participant();
$participantA->setRating($ratingA);
$participantB = new Participant();
$participantB->setRating($ratingB);
$eloCalculator = new EloCalculator(32);
list($probabilityA, $probabilityB) = $eloCalculator->getWinProbability($participantA, $participantB);
$this->assertEquals($expectedProbabilityA, $probabilityA, null, FLOAT_DELTA);
$this->assertEquals($expectedProbabilityB, $probabilityB, null, FLOAT_DELTA);
}
public function testGetNewRatingsBlackExpertBeatsBeginner()
{
$white = new Participant();
$white->setRating(1000);
$white->setScore(AbstractEloCalculator::LOSE);
$black = new Participant();
$black->setRating(2500);
$black->setScore(AbstractEloCalculator::WIN);
$eloCalculator = new IccEloCalculator();
list($newRatingWhite, $newRatingBlack) = $eloCalculator->getNewRatings($white, $black);
$this->assertSame(999, $newRatingWhite);
$this->assertSame(2500, $newRatingBlack);
}
/**
* @dataProvider getNewRatingsData
*/
public function testGetNewRatings($ratingA, $ratingB, $result, $expectedNewRatingA, $expectedNewRatingB, EloCalculatorInterface $eloCalculator)
{
if ($result === AbstractEloCalculator::WIN) {
$scoreA = AbstractEloCalculator::WIN;
$scoreB = AbstractEloCalculator::LOSE;
} elseif ($result === AbstractEloCalculator::LOSE) {
$scoreA = AbstractEloCalculator::LOSE;
$scoreB = AbstractEloCalculator::WIN;
} else {
$scoreA = AbstractEloCalculator::DRAW;
$scoreB = AbstractEloCalculator::DRAW;
}
$participantA = new Participant();
$participantA->setRating($ratingA);
$participantA->setScore($scoreA);
$participantB = new Participant();
$participantB->setRating($ratingB);
$participantB->setScore($scoreB);
list($newRatingA, $newRatingB) = $eloCalculator->getNewRatings($participantA, $participantB);
$this->assertSame($expectedNewRatingA, $newRatingA);
$this->assertSame($expectedNewRatingB, $newRatingB);
}
