public function test__toString()
{
$btc = new Currency('BTC', 8, 8);
$usd = new Currency('USD', 2, 2, '$');
$btcToUsd = new ExchangeRate($btc, $usd, 130);
$this->assertEquals('BTC:USD@130', $btcToUsd->__toString());
$this->assertEquals('BTC:USD@130', (string) $btcToUsd);
}
public function __construct(CurrencyInterface $fromCurrency = null, CurrencyInterface $toCurrency = null, $rate = null, $type = null, MoneyInterface $depth = null)
{
if (is_null($fromCurrency) || is_null($toCurrency) || is_null($rate)) {
return;
}
parent::__construct($fromCurrency, $toCurrency, $rate);
if (is_null($type)) {
return;
}
$this->setType($type);
if (is_null($depth)) {
return;
}
$this->setDepth($depth);
}