function testRankFor()
{
$leaderboard = new Leaderboard('leaderboard');
for ($i = 1; $i <= Leaderboard::DEFAULT_PAGE_SIZE + 1; $i++) {
$leaderboard->addMember("member_{$i}", $i);
}
$this->assertEquals(26, $leaderboard->rankFor('member_1'));
$this->assertEquals(25, $leaderboard->rankFor('member_1', true));
}