Returns a new Money object that represents
the difference of this and another Money object
|
public subtract ( |
||
| $subtrahend | ||
| return | ||
/**
* Decrease this account current balance
*
* @param Money $amount
* @throws InsufficientFunds
* A member cannot withdraw more than it's account current balance
*/
public function withdraw(Money $amount)
{
if ($amount->greaterThan($this->balance)) {
throw new InsufficientFunds("Cannot withdraw {$amount->getAmount()}");
}
$this->balance = $this->balance->subtract($amount);
}
/**
* @expectedException Money\InvalidArgumentException
*/
public function testDifferentCurrenciesCannotBeSubtracted()
{
$m1 = new Money(100, new Currency('EUR'));
$m2 = new Money(100, new Currency('USD'));
$m1->subtract($m2);
}
public function subtractFromAmount(Money $money)
{
return new static($this->amount->subtract($money), $this->dueDate);
}
/**
* @expectedException InvalidArgumentException
*/
public function testDifferentCurrenciesCannotBeSubtracted()
{
$m1 = new Money(100, CurrencyProxy::determine('EUR'));
$m2 = new Money(100, CurrencyProxy::determine('USD'));
$m1->subtract($m2);
}
/**
* @param Money $amount
*
* @throws \InvalidArgumentException
*
* @return Money
*/
public function subtract(Money $amount) : Money
{
return new self($this->money->subtract($amount->wrapped()));
}
