Braintree\Gateway::creditCardVerification PHP Метод

    public function creditCardVerification()
    {
        return new CreditCardVerificationGateway($this);
    }

 public function testGateway_searchEmpty()
 {
     $query = array();
     $query[] = Braintree\CreditCardVerificationSearch::creditCardCardholderName()->is('Not Found');
     $gateway = new Braintree\Gateway(array('environment' => 'development', 'merchantId' => 'integration_merchant_id', 'publicKey' => 'integration_public_key', 'privateKey' => 'integration_private_key'));
     $collection = $gateway->creditCardVerification()->search($query);
     $this->assertEquals(0, $collection->maximumCount());
 }