/**
  * Суммирование валют
  */
 public function testSumm()
 {
     $ex = new myCurrencyExchange();
     $ex->setRate(myMoney::USD, 25, myMoney::RUR);
     $rur100 = new myMoney(100, myMoney::RUR);
     $usd4 = new myMoney(4, myMoney::USD);
     $usd1 = new myMoney(1, myMoney::USD);
     $rur225 = $ex->summ(array($rur100, $usd4, $usd1), myMoney::RUR);
     $this->assertEquals(225, $rur225->getAmount(), 'Get amount');
     $this->assertEquals(myMoney::RUR, $rur225->getCode(), 'Get code');
 }