public function testProviderFactoryCreate()
{
$factory = new ProviderFactory([$this->provider]);
$provider = $factory->get($this->providerName);
$this->assertInstanceOf(self::PROVIDER_INTERFACE, $provider);
$providers = $factory->getAll();
$this->assertEquals(1, count($providers));
foreach ($providers as $provider) {
$this->assertInstanceOf('\\RedCode\\Currency\\Rate\\Provider\\ICurrencyRateProvider', $provider);
}
$this->assertNull($factory->get('WrongProviderName'));
}
/**
* Convert value in different currency
* @param ICurrency|string $from ICurrency object or currency code
* @param ICurrency|string $to ICurrency object or currency code
* @param float $value value to convert in currency $from
* @param string|null $provider provider name
* @param \DateTime|bool|null $rateDate Date for rate (default - today, false - any date)
* @throws Exception\ProviderNotFoundException
* @throws Exception\RateNotFoundException
* @throws Exception\CurrencyNotFoundException
* @return float
*/
public function convert($from, $to, $value, $provider = null, $rateDate = null)
{
$to = $this->getCurrency($to);
$from = $this->getCurrency($from);
$providers = $provider === null ? $this->providerFactory->getAll() : [$this->providerFactory->get($provider)];
$providers = array_filter($providers);
if (!count($providers)) {
throw new ProviderNotFoundException($provider);
}
$date = $rateDate === false ? null : ($rateDate instanceof \DateTime ? $rateDate : new \DateTime());
$date && $date->setTime(0, 0, 0);
$foundValue = null;
$errorParams = ['currency' => null, 'provider' => null];
foreach ($providers as $provider) {
/** @var ICurrencyRateProvider $provider */
if (!$provider->getBaseCurrency()) {
throw new ProviderNotFoundException($provider->getName());
}
$valueBase = $this->getValueBase($value, $from, $provider, $date);
if ($valueBase === null) {
$errorParams['currency'] = $from;
$errorParams['provider'] = $provider;
continue;
}
$toRate = $this->getRate($to, $provider, $date);
if ($toRate === null) {
$errorParams['currency'] = $to;
$errorParams['provider'] = $provider;
continue;
}
$foundValue = $toRate * $valueBase;
if ($foundValue !== null) {
break;
}
}
if ($foundValue === null) {
throw new RateNotFoundException($errorParams['currency'], $errorParams['provider'], $date);
}
return $foundValue;
}