MC-33856: Stabilize Integration Tests

Author: SeruyV

app/code/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Save.php

@@ -194,7 +194,8 @@ public function execute()
             $attributeCode = $model && $model->getId()
                 ? $model->getAttributeCode()
                 : $this->getRequest()->getParam('attribute_code');
-            $attributeCode = $attributeCode ?: $this->generateCode($this->getRequest()->getParam('frontend_label')[0]);
+            $frontendLabel = $this->getRequest()->getParam('frontend_label')[0] ?? null;
+            $attributeCode = $attributeCode ?: $this->generateCode($frontendLabel);
             $data['attribute_code'] = $attributeCode;
 
             //validate frontend_input

app/code/Magento/Wishlist/Model/LocaleQuantityProcessor.php

@@ -43,10 +43,11 @@ public function __construct(
     public function process($qty)
     {
         $this->localFilter->setOptions(['locale' => $this->localeResolver->getLocale()]);
-        $qty = $this->localFilter->filter($qty);
+        $qty = $this->localFilter->filter((string)$qty);
         if ($qty < 0) {
             $qty = null;
         }
+
         return $qty;
     }
 }