/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if (!isset($this->rates[$currencyPair->toString()])) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$rate = $this->rates[$currencyPair->toString()];
if (is_scalar($rate)) {
$rate = new Rate($rate);
} elseif (!$rate instanceof Rate) {
throw new InternalException(sprintf('Rates passed to the ArrayProvider must be Rate instances or scalars "%s" given.', gettype($rate)));
}
return $rate;
}
/**
* @test
*/
public function it_can_be_converted_to_a_string()
{
$pair = new CurrencyPair('EUR', 'USD');
$this->assertEquals('EUR/USD', (string) $pair);
$this->assertEquals('EUR/USD', $pair->toString());
}
/**
* {@inheritdoc}
*/
public function storeRate(CurrencyPair $currencyPair, Rate $rate)
{
$this->store->put($currencyPair->toString(), $rate, $this->ttl);
}
protected function getKey(CurrencyPair $currencyPair, $date)
{
return $currencyPair->toString() . '_' . $date;
}
public function __construct(CurrencyPair $currencyPair)
{
parent::__construct(sprintf('The currency pair "%s" is not supported.', $currencyPair->toString()));
$this->currencyPair = $currencyPair;
}
