/**
* @param money $amount
* @return money
*/
public function add(Money $amount)
{
if (!$this->currency->equals($amount->getCurrency())) {
throw new \InvalidArgumentException('Currency mismatch');
}
return new Money($this->currency, $this->amount + $amount->getValue());
}
/**
* Checks whether a Money has the same Currency as this.
*
* @param Money $other
*
* @return bool
*/
public function isSameCurrency(Money $other)
{
return $this->currency->equals($other->currency);
}
/**
* Checks if an other CurrencyPair has the same parameters as this.
*
* @param CurrencyPair $other
*
* @return bool
*/
public function equals(CurrencyPair $other)
{
return $this->baseCurrency->equals($other->baseCurrency) && $this->counterCurrency->equals($other->counterCurrency) && $this->conversionRatio === $other->conversionRatio;
}
private function ensureCurrenciesMatch(Currency $myCurrency, Currency $yourCurrency)
{
if (!$myCurrency->equals($yourCurrency)) {
throw new \InvalidArgumentException('Currency mismatch');
}
}
public function testCanCompareDifferentCurrencies()
{
$eur = new Currency('EUR');
$this->assertFalse($eur->equals($this->createUsd()));
}
/**
* @param Money $money
* @return bool
*/
public function isSameCurrencyAs(Money $money)
{
return $this->currency->equals($money->getCurrency());
}
