ACP2E-1964: fix CVV config validation; unit test

Author: alzota

app/code/Magento/Paypal/Model/Payflow/Service/Response/Validator/CVV2Match.php

@@ -55,7 +55,7 @@ class CVV2Match implements ValidatorInterface
      */
     public function validate(DataObject $response, Transparent $transparentModel)
     {
-        if ($transparentModel->getConfig()->getValue(static::CONFIG_NAME) === static::CONFIG_OFF) {
+        if ((int)$transparentModel->getConfig()->getValue(static::CONFIG_NAME) === static::CONFIG_OFF) {
             return true;
         }
 

app/code/Magento/Paypal/Test/Unit/Model/Payflow/Service/Response/Validator/CVV2MatchTest.php

@@ -137,6 +137,15 @@ public function validationDataProvider()
                 'response' => new DataObject(),
                 'configValue' => '1',
             ],
+            [
+                'expectedResult' => true,
+                'response' => new DataObject(
+                    [
+                        'cvv2match' => 'N',
+                    ]
+                ),
+                'configValue' => '0',
+            ],
         ];
     }
 }