Fix incorrect handling of userFields in response.

src/Request/Model/Customer.php

@@ -3,7 +3,8 @@
 namespace Academe\AuthorizeNet\Request\Model;
 
 /**
- *
+ * FIXME: the driversLicense is an object, not a scalar.
+ * See https://github.com/academe/authorizenet-objects/issues/10
  */
 
 use Academe\AuthorizeNet\TransactionRequestInterface;

src/Response/Collections/UserFields.php

@@ -19,7 +19,7 @@ public function __construct(array $data = [])
         $this->setData($data);
 
         // An array of userField records.
-        foreach ($this->getDataValue('userField') as $userField_data) {
+        foreach ($data as $userField_data) {
             $this->push(new UserField($userField_data));
         }
     }

src/Response/Model/UserField.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Academe\AuthorizeNet\Response\Model;
+
+/**
+ * The Response UserField is identical to the Request UserField.
+ */
+
+use Academe\AuthorizeNet\Request\Model\UserField as RequestUserField;
+
+class UserField extends RequestUserField
+{
+    public function __construct(
+        $name,
+        $value = null
+    ) {
+        if (is_string($name) && is_string($value)) {
+            parent::__construct($name, $value);
+        }
+
+        if (is_array($name) && is_null($value)) {
+            parent::__construct($name['name'], $name['value']);
+        }
+    }
+}
+
+

tests/ServerRequest/NotificationTest.php

@@ -3,7 +3,7 @@
 namespace Academe\AuthorizeNet\ServerRequest;
 
 /**
- *
+ * The notification webhook.
  */
 
 use PHPUnit\Framework\TestCase;