/**
* @test
*/
public function itShouldReturnACurrencyPairAfterGettingTheRatioFromTheRepository()
{
$currencyFrom = new Currency(Currency::CURRENCY_CODE_EURO);
$currencyTo = new Currency(Currency::CURRENCY_CODE_US_DOLLAR);
$ratio = 1.5;
$this->repository->shouldReceive('findRatio')->andReturn($ratio);
$expectedCurrencyPair = new CurrencyPair($currencyFrom, $currencyTo, $ratio);
$currencyPair = $this->service->execute($currencyFrom, $currencyTo);
$this->assertEquals($expectedCurrencyPair, $currencyPair);
}
/**
* @param Currency $currencyFrom
* @param Currency $currencyTo
*
* @return CurrencyPair
*/
public function execute(Currency $currencyFrom, Currency $currencyTo)
{
$ratio = $this->currencyPairRepository->findRatio($currencyFrom, $currencyTo);
return new CurrencyPair($currencyFrom, $currencyTo, $ratio);
}
