/**
  * method getAmountInBaseUnits
  * when calledWithProperMoneyObjects
  * should returnProperResult
  * @dataProvider getAmountCurrencyAndExpectedResult
  */
 public function test_getAmountInBaseUnits_calledWithProperMoneyObjects_returnProperResult($amount, $currency, $expected)
 {
     $sut = new MoneyFormatter();
     $actual = $sut->getAmountInBaseUnits(new Money($amount, new Currency($currency)));
     $this->assertEquals($expected, $actual);
 }