/**
* {@inheritdoc}
*/
public function quote($currencyPair, $date = null)
{
if (is_string($currencyPair)) {
$currencyPair = CurrencyPair::createFromString($currencyPair);
} elseif (!$currencyPair instanceof CurrencyPair) {
throw new \InvalidArgumentException('The currency pair must be either a string or an instance of CurrencyPair');
}
//todo: abstract???
if (isset($date)) {
// date cache check, first cache check
if (null !== $this->dateCache && null !== ($rate = $this->dateCache->fetchRate($currencyPair, $date))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair, $date);
//store date and rate
if (null !== $this->dateCache && isset($date)) {
$this->dateCache->storeRate($currencyPair, $rate, $date);
}
return $rate;
}
// original cache check
if (null !== $this->cache && null !== ($rate = $this->cache->fetchRate($currencyPair))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair);
// original cache set
if (null !== $this->cache) {
$this->cache->storeRate($currencyPair, $rate);
}
return $rate;
}
/**
* @test
*/
public function it_fetches_a_rate_from_scalars()
{
$arrayProvider = new ArrayProvider(['EUR/USD' => 1.5, 'USD/GBP' => '1.25', 'JPY/GBP' => 1]);
$eurUsd = $arrayProvider->fetchRate(CurrencyPair::createFromString('EUR/USD'));
$usdGbp = $arrayProvider->fetchRate(CurrencyPair::createFromString('USD/GBP'));
$jpyGbp = $arrayProvider->fetchRate(CurrencyPair::createFromString('JPY/GBP'));
$this->assertEquals('1.50', $eurUsd->getValue());
$this->assertEquals('1.25', $usdGbp->getValue());
$this->assertEquals('1', $jpyGbp->getValue());
}
/**
* {@inheritdoc}
*/
public function quote($currencyPair)
{
if (is_string($currencyPair)) {
$currencyPair = CurrencyPair::createFromString($currencyPair);
} elseif (!$currencyPair instanceof CurrencyPair) {
throw new \InvalidArgumentException('The currency pair must be either a string or an instance of CurrencyPair');
}
if (null !== $this->cache && null !== ($rate = $this->cache->fetchRate($currencyPair))) {
return $rate;
}
$rate = $this->provider->fetchRate($currencyPair);
if (null !== $this->cache) {
$this->cache->storeRate($currencyPair, $rate);
}
return $rate;
}
/**
* @test
* @dataProvider invalidStringProvider
* @expectedException \InvalidArgumentException
*/
public function it_throws_an_exception_when_creating_from_an_invalid_string($string)
{
CurrencyPair::createFromString($string);
}
