feat: add affiliate_id and affiliate_url to ProcessingSettings, type and sub_type to Product, and create ProductSubType class

lib/Checkout/Payments/ProcessingSettings.php

@@ -240,4 +240,14 @@
      */
     public $purpose;
 
+    /**
+     * @var string
+     */
+    public $affiliate_id;
+
+    /**
+     * @var string
+     */
+    public $affiliate_url;
+
 }

lib/Checkout/Payments/Product.php

@@ -4,6 +4,16 @@
 
 class Product
 {
+    /**
+     * @var string
+     */
+    public $type;
+
+    /**
+     * @var string value of ProductSubType
+     */
+    public $sub_type;
+
     /**
      * @var string
      */

lib/Checkout/Payments/ProductSubType.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Checkout\Payments;
+
+class ProductSubType
+{
+    public static $blockchain = "blockchain";
+    public static $cbdc = "cbdc";
+    public static $cryptocurrency = "cryptocurrency";
+    public static $nft = "nft";
+    public static $stablecoin = "stablecoin";
+}

test/Checkout/Tests/Payments/Sessions/PaymentSessionsIntegrationTest.php

@@ -136,7 +136,8 @@ public function shouldSubmitPaymentSession()
         $request = $this->createPaymentSubmitRequest();
 
         try {
-            $response = $this->checkoutApi->getPaymentSessionsClient()->submitPaymentSession(self::$paymentSessionId, $request);
+            $response =
+                $this->checkoutApi->getPaymentSessionsClient()->submitPaymentSession(self::$paymentSessionId, $request);
 
             // Validate successful submission response
             $this->assertNotNull($response);