trueskill/tests/RankSorterTest.php

<?php namespace Moserware\Skills\Tests;

use Moserware\Skills\RankSorter;

class RankSorterTest extends TestCase
{
    public function testSort()
    {
        $team1 = array("a" => 1, "b" => 2);
        $team2 = array("c" => 3, "d" => 4);
        $team3 = array("e" => 5, "f" => 6);

        $teams = array($team1, $team2, $team3);

        $teamRanks = array(3, 1, 2);

        $sortedRanks = RankSorter::sort($teams, $teamRanks);

        $this->assertEquals($team2, $sortedRanks[0]);
        $this->assertEquals($team3, $sortedRanks[1]);
        $this->assertEquals($team1, $sortedRanks[2]);

        // Since we are also using a return
        $this->assertEquals($team2, $teams[0]);
        $this->assertEquals($team3, $teams[1]);
        $this->assertEquals($team1, $teams[2]);

        // Since we're passing a reference, but also get a return
        $this->assertEquals($teams[0], $sortedRanks[0]);
        $this->assertEquals($teams[1], $sortedRanks[1]);
        $this->assertEquals($teams[2], $sortedRanks[2]);
    }
}