public function testLookupPayment()
 {
     $this->assertInstanceOf(Payment::getClass(), $this->client->lookupPayment($this->payment->getId()));
 }
 /**
  * {@inheritdoc}
  */
 public function factory()
 {
     $paymentClient = new PaymentClient($this->baseUrl);
     $paymentClient->setProvider($this->accessTokenProvider);
     return $paymentClient;
 }