Money\MoneyTest::testDifferentCurrenciesCannotBeAdded PHP 메소드

    public function testDifferentCurrenciesCannotBeAdded()
    {
        $m1 = Money::fromAmount('100', Currency::fromCode('EUR'));
        $m2 = Money::fromAmount('100', Currency::fromCode('USD'));
        $m1->add($m2);
    }