/**
* Gets tax value between net and gross price
* @return Money
*/
public function getTaxValue()
{
return $this->grossPrice->subtract($this->netPrice);
}
/**
* @dataProvider getCurrencyMismatchData
* @expectedException \Nilz\Money\Exception\CurrencyMismatchException
*/
public function testSubtractWithDifferentCurrenciesFails(Money $minuend, Money $subtrahend)
{
$minuend->subtract($subtrahend);
}